# Elise Mertens career statistics

This is a list of the main career statistics of Belgian professional tennis player Elise Mertens since her professional debut in 2010. So far, Mertens has won eight WTA singles titles and 21 career doubles titles, including four Grand Slam titles, as well as one doubles title at WTA Challenger level and 11 singles titles and 13 doubles titles on the ITF Circuit. She reached a career-high WTA singles ranking of No. 12, while in doubles, she was the world No. 1.

## Career achievements

Mertens made her WTA Tour debut at the 2015 Copa Colsanitas, in the doubles event. The following year, she started winning the title at the Auckland Open, partnering with An-Sophie Mestach. In June of the same year, she made her WTA Tour singles debut at the Rosmalen Championships as a qualifier. At Wimbledon, she made her Grand Slam main-draw debut in doubles, and then at the 2016 US Open, also in singles. Mertens started into the 2017 season, winning her first title in singles at the Hobart International defeating Monica Niculescu. In April 2017, she reached another WTA Tour final, but this time finished runner-up at the İstanbul Cup, losing to Elina Svitolina. At the 2017 French Open, she recorded her first Grand Slam match win defeating Daria Gavrilova in the first round. In October 2017, she recorded her first top-10 win over world No. 10, Dominika Cibulková, in the first round of the Premier Mandatory-level China Open.
In the 2018 season, Mertens recorded big improvements. She defended her title at the Hobart International, defeating Mihaela Buzărnescu in the final. There, she also won the title in doubles. She followed this up with her first and so far only major semifinal in singles at the Australian Open. There, she en-route also defeated world No. 4, Elina Svitolina. In April, she continued with good performances, winning titles in both singles and doubles at the Ladies Open Lugano. Soon after that, she won the Morocco Open by defeating Ajla Tomljanović in the final. During the grass season, Mertens had success in doubles. First, she won Rosmalen Championships with Demi Schuurs and then reached the final of the Premier-level Birmingham Classic, also with Schuurs. During the U.S. hardcourt tour, she first reached semifinals of the Premier-level Silicon Valley Classic, and then quarterfinals at the Premier 5-levels Canadian Open and Cincinnati Open. In Cincinnati, she also made top 10 win over world No. 3, Sloane Stephens, and reached the final in doubles. Then, on the Asian hardcourt swing, she won the Premier 5-level Wuhan Open and entered the final of the Premier Mandatory-level China Open, both in doubles with Schuurs. At the end of the year, she competed at the WTA Elite Trophy in singles, and the WTA Finals in doubles, losing both times in the round-robin stage.
Mertens continued to progress in 2019. In February, she won her first Premier singles title at the Qatar Ladies Open by defeating world No. 3, Simona Halep, in the final. En-route she realized two more top-10 wins, over world No. 8, Kiki Bertens, and No. 6, Angelique Kerber. Soon after that, she won the Sunshine Doubles (Indian Wells and Miami Open), both in doubles alongside Aryna Sabalenka. Mertens continued with good performances in doubles, reaching semifinals of the French Open and quarterfinals at Wimbledon. At the US Open, she reached quarterfinals in singles and won the title in doubles alongside Sabalenka. At the 2020 US Open, she reached quarterfinals for the second year in-a-row, and finished on the same stage in doubles. Mertens started 2021 season winning the title at the WTA 500-level Gippsland Trophy in Melbourne, right before the Australian Open where she also defeated world No. 5 Elina Svitolina. At the Australian Open, she won her second Grand Slam doubles title, again with Sabalenka. Mertens ascended to world No. 1 in doubles, on 10 May 2021.
Mertens would go onto win her third doubles slam at Wimbledon with Hsieh Su-wei later that year. The following year she won her first WTA Finals title with another new partner, Veronika Kudermetova.

## Performance timelines

Key :
| W | F | SF | QF | #R | RR | Q# | P# | DNQ | A | Z# | PO | G | S | B | NMS | NTI | P | NH |
Only main-draw results in WTA Tour, Grand Slam tournaments, Billie Jean King Cup, United Cup, Hopman Cup and Olympic Games are included in win–loss records.

### Singles

Current through the 2024 Dubai Open.
| Tournament | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win % |
| Grand Slam tournaments ||||||||||||||
| Australian Open | Q2 | A | SF | 3R | 4R | 4R | 4R | 3R | 2R | 2R | 0 / 8 | 20–8 | 71% |
| French Open | Q3 | 3R | 4R | 3R | 3R | 3R | 4R | 4R | 3R | | 0 / 8 | 19–8 | 70% |
| Wimbledon | Q2 | 1R | 3R | 4R | NH | 3R | 4R | 2R | 2R | | 0 / 7 | 12–7 | 63% |
| US Open | 1R | 1R | 4R | QF | QF | 4R | 1R | 3R | 4R | | 0 / 9 | 19–9 | 68% |
| Win–loss | 0–1 | 2–3 | 13–4 | 11–4 | 9–3 | 10–4 | 9–4 | 8–4 | 7–4 | 1–1 | 0 / 32 | 70–32 | 69% |
| Year-end championships ||||||||||||||
| WTA Finals | DNQ | DNQ | DNQ | DNQ | NH | Alt | DNQ | DNQ | DNQ | DNQ | 0 / 0 | 0–0 | – |
| WTA Elite Trophy | DNQ | DNQ | RR | RR | NH | NH | NH | DNQ | NH | NH | 0 / 2 | 2–2 | 50% |
| National representation ||||||||||||||
| Summer Olympics | A | NH | NH | NH | NH | 1R | NH | NH | A | NH | 0 / 1 | 0–1 | 0% |
| Billie Jean King Cup | A | PO | 1R | 1R | RR | RR | RR | A | A | | 0 / 4 | 9–5 | 64% |
| WTA 1000 ||||||||||||||
| Qatar Open | A | NMS | 2R | NMS | 2R | NMS | 3R | NMS | 2R | | 0 / 4 | 5–4 | 56% |
| Dubai Championships | NMS | 2R | NMS | 1R | NMS | SF | NMS | A | 1R | | 0 / 4 | 5–4 | 56% |
| Indian Wells Open | A | Q1 | 2R | 3R | NH | 2R | 3R | 1R | 4R | | 0 / 6 | 4–6 | 40% |
| Miami Open | A | Q1 | 3R | 3R | NH | 4R | 2R | 4R | 2R | | 0 / 6 | 7–6 | 54% |
| Madrid Open | A | A | 2R | 1R | NH | QF | A | 4R | 2R | | 0 / 5 | 6–5 | 55% |
| Italian Open | A | A | A | 1R | QF | 1R | A | 2R | 3R | | 0 / 5 | 4–5 | 44% |
| Canadian Open | A | A | QF | 2R | NH | 1R | 2R | 1R | 3R | | 0 / 6 | 7–6 | 54% |
| Cincinnati Open | A | Q1 | QF | 2R | SF | 2R | 3R | 2R | 1R | | 0 / 7 | 12–7 | 63% |
| Guadalajara Open | NH | NH | NH | NH | NH | NH | 2R | 2R | NMS | NMS | 0 / 2 | 2–2 | 50% |
| China Open | A | 2R | 1R | 2R | NH | NH | NH | 1R | 3R | | 0 / 5 | 3–5 | 38% |
| Wuhan Open | A | 2R | 1R | 2R | NH | NH | NH | NH | 1R | | 0 / 4 | 2–4 | 33% |
| Win–loss | 0–0 | 3–3 | 9–8 | 6–9 | 8–3 | 10–7 | 7–6 | 7–8 | 7–10 | | 0 / 54 | 57–54 | 51% |
| Career statistics ||||||||||||||
| | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win % |
| Tournaments | 3 | 22 | 23 | 26 | 13 | 20 | 22 | 22 | 24 | 3 | Career total: 177 | Career total: 177 | Career total: 177 |
| Titles | 0 | 1 | 3 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | Career total: 9 | Career total: 9 | Career total: 9 |
| Finals | 0 | 2 | 3 | 1 | 2 | 2 | 1 | 1 | 1 | 2 | Career total: 15 | Career total: 15 | Career total: 15 |
| Hard win–loss | 0–1 | 18–11 | 28–16 | 24–17 | 25–9 | 22–12 | 19–15 | 21–16 | 16–14 | 10–2 | 7 / 114 | 183–113 | 62% |
| Clay win–loss | 0–0 | 13–6 | 16–2 | 4–6 | 9–4 | 9–5 | 4–3 | 7–4 | 6–5 | | 2 / 37 | 68–35 | 66% |
| Grass win–loss | 3–2 | 1–4 | 4–4 | 7–4 | NH | 2–3 | 4–4 | 1–2 | 3–4 | | 0 / 28 | 25–27 | 48% |
| Overall win–loss | 3–3 | 32–21 | 48–22 | 35–27 | 34–13 | 33–20 | 27–22 | 29–21 | 25–23 | 10–2 | 9 / 179 | 276–175 | 61% |
| Win (%) | 50% | 60% | 69% | 56% | 72% | 62% | 55% | 58% | 52% | 83% | Career total: 61% | Career total: 61% | Career total: 61% |
| Year-end ranking | 120 | 35 | 13 | 17 | 20 | 21 | 29 | 29 | 34 | | $12,795,852 | $12,795,852 | $12,795,852 |

### Doubles

Current through the 2024 Madrid Open .
| Tournament | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win% |
| Grand Slam tournaments |||||||||||||||
| Australian Open | A | A | 2R | 1R | 3R | QF | W | SF | QF | W | 2R | 2 / 9 | 25-7 | 78% |
| French Open | A | A | 1R | 1R | SF | 2R | 3R | 3R | 3R | 2R | | 0 / 8 | 12–8 | 60% |
| Wimbledon | A | 2R | 3R | 3R | QF | NH | W | F | F | SF | | 1 / 8 | 28–7 | 80% |
| US Open | A | A | 2R | QF | W | QF | QF | 2R | 1R | 1R | | 1 / 8 | 16–6 | 73% |
| Win–loss | 0–0 | 1–1 | 4–4 | 5–4 | 15–3 | 6–3 | 16–2 | 12–3 | 10–4 | 11–3 | 1–1 | 4 / 33 | 81–28 | 74% |
| Year-end championships |||||||||||||||
| WTA Finals | DNQ | DNQ | DNQ | RR | RR | NH | F | W | SF | RR | | 1 / 6 | 10–7 | 59% |
| National representation |||||||||||||||
| Summer Olympics | NH | A | NH | NH | NH | NH | 1R | NH | NH | A | NH | 0 / 1 | 0–1 | 0% |
| WTA 1000 |||||||||||||||
| Qatar Open | NT1 | A | NT1 | 2R | NT1 | QF | NT1 | F | NT1 | QF | | 0 / 4 | 5–4 | 56% |
| Dubai | A | NT1 | 1R | NT1 | A | NT1 | 2R | NT1 | A | 2R | | 0 / 3 | 0–3 | 0% |
| Indian Wells Open | A | A | A | 2R | W | NH | W | 1R | QF | W | | 3 / 6 | 18–3 | 86% |
| Miami Open | A | A | A | SF | W | NH | 1R | F | QF | QF | | 1 / 6 | 16–5 | 76% |
| Madrid Open | A | A | A | 1R | 2R | NH | 2R | A | 2R | SF | | 0 / 5 | 3–3 | 50% |
| Italian Open | A | A | A | A | 2R | A | 2R | A | W | QF | | 1 / 4 | 7–3 | 70% |
| Canadian Open | A | A | A | A | A | NH | QF | 2R | SF | 2R | | 0 / 4 | 4–4 | 50% |
| Cincinnati Open | A | A | 1R | F | 2R | QF | 2R | SF | SF | 2R | | 0 / 8 | 11–7 | 61% |
| Guadalajara Open | NH | NH | NH | NH | NH | NH | NH | QF | W | NT1 | NT1 | 1 / 2 | 5–0 | 100% |
| Wuhan Open | A | A | 1R | W | F | NH | NH | NH | NH | 2R | | 1 / 4 | 9–3 | 75% |
| China Open | A | A | 2R | SF | 2R | NH | NH | NH | 2R | 1R | | 0 / 5 | 3–5 | 38% |
| Career statistics |||||||||||||||
| | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win% |
| Tournament | 3 | 8 | 20 | 16 | 14 | 7 | 17 | 16 | 13 | 10 | 1 | Career total: 124 | Career total: 124 | Career total: 124 |
| Titles | 0 | 1 | 1 | 4 | 3 | 1 | 4 | 2 | 2 | 3 | | Career total: 20 | Career total: 20 | Career total: 20 |
| Finals | 0 | 1 | 3 | 6 | 4 | 1 | 5 | 6 | 4 | 3 | | Career total: 32 | Career total: 32 | Career total: 32 |
| Hard win–loss | 0–1 | 4–3 | 13–12 | 23–9 | 22–7 | 13–4 | 19–10 | 28–8 | 19–8 | 15–8 | 1–1 | 13 / 82 | 157–71 | 69% |
| Clay win–loss | 1–2 | 1–2 | 7–4 | 5–1 | 4–3 | 1–1 | 6–3 | 4–2 | 8–3 | 3–1 | | 3 / 23 | 40–21 | 66% |
| Grass win–loss | 0–0 | 1–2 | 3–3 | 10–3 | 4–2 | NH | 8–1 | 11–2 | 5–1 | 8–1 | | 3 / 20 | 50–15 | 77% |
| Overall win–loss | 1–3 | 6–7 | 23–19 | 38–13 | 30–12 | 14–5 | 33–14 | 43–12 | 32–12 | 26–10 | 1–1 | 21 / 125 | 247–108 | 70% |
| Win (%) | 25% | 46% | 55% | 75% | 71% | 74% | 70% | 78% | 73% | 72% | 50% | Career total: 70% | Career total: 70% | Career total: 70% |
| Year-end ranking | 134 | 79 | 41 | 11 | 6 | 6 | 4 | 5 | 2 | 9 | | | | |

## Grand Slam tournament finals
### Doubles: 6 (4 titles, 2 runner-ups)

| Result | Year | Tournament | Surface | Partner | Opponents | Score |
| Win | 2019 | US Open | Hard | Aryna Sabalenka | Victoria Azarenka Ashleigh Barty | 7–5, 7–5 |
| Win | 2021 | Australian Open | Hard | Aryna Sabalenka | Barbora Krejčíková Kateřina Siniaková | 6–2, 6–3 |
| Win | 2021 | Wimbledon | Grass | Hsieh Su-wei | Veronika Kudermetova Elena Vesnina | 3–6, 7–5, 9–7 |
| Loss | 2022 | Wimbledon | Grass | Zhang Shuai | Barbora Krejčíková Kateřina Siniaková | 2–6, 4–6 |
| Loss | 2023 | Wimbledon | Grass | Storm Hunter | Hsieh Su-wei Barbora Strýcová | 5–7, 4–6 |
| Win | 2024 | Australian Open (2) | Hard | Hsieh Su-wei | Lyudmyla Kichenok Jeļena Ostapenko | 6–1, 7–5 |

## Other significant finals
### WTA Finals
#### Doubles: 2 (1 title, 1 runner-up)

| Result | Year | Location | Surface | Partner | Opponents | Score |
| Loss | 2021 | WTA Finals | Hard | Hsieh Su-wei | Barbora Krejčíková Kateřina Siniaková | 3–6, 4–6 |
| Win | 2022 | WTA Finals | Hard (i) | Veronika Kudermetova | Barbora Krejčíková Kateřina Siniaková | 6–2, 4–6, [11–9] |

### WTA 1000 tournaments
#### Doubles: 11 (7 titles, 4 runner-ups)

| Result | Year | Tournament | Surface | Partner | Opponents | Score |
| Loss | 2018 | Cincinnati Open | Hard | Demi Schuurs | Lucie Hradecká Ekaterina Makarova | 2–6, 5–7 |
| Win | 2018 | Wuhan Open | Hard | Demi Schuurs | Andrea Sestini Hlaváčková Barbora Strýcová | 6–3, 6–3 |
| Win | 2019 | Indian Wells Open | Hard | Aryna Sabalenka | Barbora Krejčíková Kateřina Siniaková | 6–3, 6–2 |
| Win | 2019 | Miami Open | Hard | Aryna Sabalenka | Samantha Stosur Zhang Shuai | 7–6$^{(7–5)}$, 6–2 |
| Loss | 2019 | Wuhan Open | Hard | Aryna Sabalenka | Duan Yingying Veronika Kudermetova | 6–7$^{(3–7)}$, 2–6 |
| Win | 2021 | Indian Wells Open (2) | Hard | Hsieh Su-wei | Veronika Kudermetova Elena Rybakina | 7–6$^{(7–1)}$, 6–3 |
| Loss | 2022 | Qatar Open | Hard | Veronika Kudermetova | Coco Gauff Jessica Pegula | 6–3, 5–7, [5–10] |
| Loss | 2022 | Miami Open | Hard | Veronika Kudermetova | Laura Siegemund Vera Zvonareva | 6–7$^{(3–7)}$, 5–7 |
| Win | 2023 | Italian Open | Clay | Storm Hunter | Coco Gauff Jessica Pegula | 6–4, 6–4 |
| Win | 2023 | Guadalajara Open | Hard | Storm Hunter | Gabriela Dabrowski Erin Routliffe | 3–6, 6–2, [10–4] |
| Win | 2024 | Indian Wells Open (3) | Hard | Hsieh Su-wei | Storm Hunter Kateřina Siniaková | 6–3, 6–4 |

## WTA Tour finals

Mertens made her WTA Tour debut in 2015 at the Copa Colsanitas. In 2016, she reached and won her first WTA Tour final, in doubles at the Auckland Open. In 2017, she reached her first tour singles final at the Hobart International, where she succeeded to win the title. In 2019, she continued to progress and won her first major title at the 2019 US Open, alongside Aryna Sabalenka; in the final they defeated Ashleigh Barty and Victoria Azarenka. At the 2021 Australian Open, they won another Grand Slam title, this time defeating Barbora Krejčíková and Kateřina Siniaková. On the WTA Tour, Mertens has won eight singles and 18 doubles titles in total.

### Singles: 15 (9 titles, 6 runner-ups)

* Legend
* Grand Slam
* WTA 1000
* WTA 500 (2–0)
* WTA 250 (7–6)
* Finals by surface
* Hard (7–3)
* Grass (0–0)
* Clay (2–3)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Jan 2017 | Hobart International, Australia | International | Hard | Monica Niculescu | 6–3, 6–1 |
| Loss | 1–1 | Apr 2017 | İstanbul Cup, Turkey | International | Clay | Elina Svitolina | 2–6, 4–6 |
| Win | 2–1 | Jan 2018 | Hobart International, Australia (2) | International | Hard | Mihaela Buzărnescu | 6–1, 4–6, 6–3 |
| Win | 3–1 | Apr 2018 | Ladies Open Lugano, Switzerland | International | Clay | Aryna Sabalenka | 7–5, 6–2 |
| Win | 4–1 | May 2018 | Rabat Grand Prix, Morocco | International | Clay | Ajla Tomljanović | 6–2, 7–6$^{(7–4)}$ |
| Win | 5–1 | Feb 2019 | Qatar Ladies Open, Qatar | Premier | Hard | Simona Halep | 3–6, 6–4, 6–3 |
| Loss | 5–2 | Aug 2020 | Prague Open, Czech Republic | International | Clay | Simona Halep | 2–6, 5–7 |
| Loss | 5–3 | Nov 2020 | Ladies Linz, Austria | International | Hard (i) | Aryna Sabalenka | 5–7, 2–6 |
| Win | 6–3 | Feb 2021 | Gippsland Trophy, Australia | WTA 500 | Hard | Kaia Kanepi | 6–4, 6–1 |
| Loss | 6–4 | Apr 2021 | İstanbul Cup, Turkey | WTA 250 | Clay | Sorana Cîrstea | 1–6, 6–7$^{(3–7)}$ |
| Win | 7–4 | Oct 2022 | Jasmin Open, Tunisia | WTA 250 | Hard | Alizé Cornet | 6–2, 6–0 |
| Win | 8–4 | Oct 2023 | Jasmin Open, Tunisia (2) | WTA 250 | Hard | Jasmine Paolini | 6–3, 6–0 |
| Loss | 8–5 | Jan 2024 | Hobart International, Australia | WTA 250 | Hard | Emma Navarro | 1–6, 6–4, 5–7 |
| Loss | 8–6 | Jan 2025 | Hobart International, Australia | WTA 250 | Hard | McCartney Kessler | 4–6, 6–3, 0–6 |
| Win | 9–6 | Feb 2025 | Singapore Open, Singapore | WTA 250 | Hard (i) | Ann Li | 6–1, 6–4 |

### Doubles: 33 (21 titles, 12 runner-ups)

* Legend
* Grand Slam (4–2)
* WTA Finals (1–1)
* WTA 1000 (7–4)
* WTA 500 (2–1)
* WTA 250 (7–4)
* Finals by surface
* Hard (15–5)
* Clay (3–2)
* Grass (3–5)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | Jan 2016 | Auckland Open, New Zealand | International | Hard | An-Sophie Mestach | Danka Kovinić Barbora Strýcová | 2–6, 6–3, [10–5] |
| Loss | 1–1 | Apr 2017 | İstanbul Cup, Turkey | International | Clay | Nicole Melichar | Dalila Jakupovic Nadiia Kichenok | 6–7$^{(6–8)}$, 2–6 |
| Loss | 1–2 | Jul 2017 | Bucharest Open, Romania | International | Clay | Demi Schuurs | Irina Camelia Begu Raluca Olaru | 3–6, 3–6 |
| Win | 2–2 | Sep 2017 | Guangzhou Open, China | International | Hard | Demi Schuurs | Monique Adamczak Storm Sanders | 6–2, 6–3 |
| Win | 3–2 | Jan 2018 | Hobart International, Australia | International | Hard | Demi Schuurs | Lyudmyla Kichenok Makoto Ninomiya | 6–2, 6–2 |
| Win | 4–2 | Apr 2018 | Ladies Open Lugano, Switzerland | International | Clay | Kirsten Flipkens | Vera Lapko Aryna Sabalenka | 6–1, 6–3 |
| Win | 5–2 | Jun 2018 | Rosmalen Open, Netherlands | International | Grass | Demi Schuurs | Kiki Bertens Kirsten Flipkens | 3–3 retired |
| Loss | 5–3 | Jun 2018 | Birmingham Classic, United Kingdom | Premier | Grass | Demi Schuurs | Tímea Babos Kristina Mladenovic | 6–4, 3–6, [8–10] |
| Loss | 5–4 | Aug 2018 | Cincinnati Open, United States | Premier 5 | Hard | Demi Schuurs | Lucie Hradecká Ekaterina Makarova | 2–6, 5–7 |
| Win | 6–4 | Sep 2018 | Wuhan Open, China | Premier 5 | Hard | Demi Schuurs | Andrea Sestini Hlaváčková Barbora Strýcová | 6–3, 6–3 |
| Win | 7–4 | Mar 2019 | Indian Wells Open, United States | Premier M | Hard | Aryna Sabalenka | Barbora Krejčíková Kateřina Siniaková | 6–3, 6–2 |
| Win | 8–4 | Mar 2019 | Miami Open, United States | Premier M | Hard | Aryna Sabalenka | Samantha Stosur Zhang Shuai | 7–6$^{(7–5)}$, 6–2 |
| Win | 9–4 | Sep 2019 | US Open, United States | Grand Slam | Hard | Aryna Sabalenka | Victoria Azarenka Ashleigh Barty | 7–5, 7–5 |
| Loss | 9–5 | Sep 2019 | Wuhan Open, China | Premier 5 | Hard | Aryna Sabalenka | Duan Yingying Veronika Kudermetova | 6–7$^{(3–7)}$, 2–6 |
| Win | 10–5 | Oct 2020 | Ostrava Open, Czech Republic | Premier | Hard (i) | Aryna Sabalenka | Gabriela Dabrowski Luisa Stefani | 6–1, 6–3 |
| Win | 11–5 | Feb 2021 | Australian Open, Australia | Grand Slam | Hard | Aryna Sabalenka | Barbora Krejčíková Kateřina Siniaková | 6–2, 6–3 |
| Win | 12–5 | Apr 2021 | İstanbul Cup, Turkey | WTA 250 | Clay | Veronika Kudermetova | Nao Hibino Makoto Ninomiya | 6–1, 6–1 |
| Win | 13–5 | Jul 2021 | Wimbledon, United Kingdom | Grand Slam | Grass | Hsieh Su-wei | Veronika Kudermetova Elena Vesnina | 3–6, 7–5, 9–7 |
| Win | 14–5 | Oct 2021 | Indian Wells Open, United States (2) | WTA 1000 | Hard | Hsieh Su-wei | Veronika Kudermetova Elena Rybakina | 7–6$^{(7–1)}$, 6–3 |
| Loss | 14–6 | Nov 2021 | WTA Finals, Mexico | WTA Finals | Hard | Hsieh Su-wei | Barbora Krejčíková Kateřina Siniaková | 3–6, 4–6 |
| Win | 15–6 | Feb 2022 | Dubai Championships, UAE | WTA 500 | Hard | Veronika Kudermetova | Lyudmyla Kichenok Jeļena Ostapenko | 6–1, 6–3 |
| Loss | 15–7 | Feb 2022 | Qatar Ladies Open, Qatar | WTA 1000 | Hard | Veronika Kudermetova | Coco Gauff Jessica Pegula | 6–3, 5–7, [5–10] |
| Loss | 15–8 | Apr 2022 | Miami Open, United States | WTA 1000 | Hard | Veronika Kudermetova | Laura Siegemund Vera Zvonareva | 6–7$^{(3–7)}$, 5–7 |
| Loss | 15–9 | Jun 2022 | Rosmalen Open, Netherlands | WTA 250 | Grass | Veronika Kudermetova | Ellen Perez Tamara Zidanšek | 3–6, 7–5, [10–12] |
| Loss | 15–10 | Jun 2022 | Birmingham Classic, United Kingdom | WTA 250 | Grass | Zhang Shuai | Lyudmyla Kichenok Jeļena Ostapenko | walkover |
| Loss | 15–11 | Jul 2022 | Wimbledon, United Kingdom | Grand Slam | Grass | Zhang Shuai | Barbora Krejčíková Kateřina Siniaková | 2–6, 4–6 |
| Win | 16–11 | Nov 2022 | WTA Finals, United States | WTA Finals | Hard | Veronika Kudermetova | Barbora Krejčíková Kateřina Siniaková | 6–2, 4–6, [11–9] |
| Win | 17–11 | May 2023 | Italian Open, Italy | WTA 1000 | Clay | Storm Hunter | Coco Gauff Jessica Pegula | 6–4, 6–4 |
| Loss | 17–12 | Jul 2023 | Wimbledon, United Kingdom | Grand Slam | Grass | Storm Hunter | Hsieh Su-wei Barbora Strýcová | 5–7, 4–6 |
| Win | 18–12 | Sep 2023 | Guadalajara Open, Mexico | WTA 1000 | Hard | Storm Hunter | Gabriela Dabrowski Erin Routliffe | 3–6, 6–2, [10–4] |
| Win | 19–12 | Jan 2024 | Australian Open, Australia (2) | Grand Slam | Hard | Hsieh Su-wei | Lyudmyla Kichenok Jeļena Ostapenko | 6–1, 7–5 |
| Win | 20–12 | Mar 2024 | Indian Wells Open, United States (3) | WTA 1000 | Hard | Hsieh Su-wei | Storm Hunter Kateřina Siniaková | 6–3, 6–4 |
| Win | 21–12 | Jun 2024 | Birmingham Classic, United Kingdom | WTA 250 | Grass | Hsieh Su-wei | Miyu Kato Zhang Shuai | 6–1, 6–3 |

## WTA Challenger finals

Mertens made her debut at the WTA Challenger Tour at the Taipei Open in November 2015, where she also reached final in doubles. She lost in that final alongside Marina Melnikova, but year later she won her first doubles title at the Open de Limoges, partnering with Mandy Minella.

### Doubles: 2 (1 title, 1 runner-up)

| Result | W–L | Date | Tournament | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Nov 2015 | Taipei Open, Taiwan | Carpet (i) | Marina Melnikova | Kanae Hisami Kotomi Takahata | 1–6, 2–6 |
| Win | 1–1 | Nov 2016 | Open de Limoges, France | Hard (i) | Mandy Minella | Anna Smith Renata Voráčová | 6–4, 6–4 |

## ITF Circuit finals

Mertens made her ITF Women's Circuit debut in 2010. Since then, she reached 13 singles finals, winning 11 of them. In doubles, she done even better, with 13 titles out of the 23 finals that she reached. In Singles, she won two $50/60k titles, while in doubles she won four $50/60K titles and played two $70K/80k finals.

### Singles: 13 (11 titles, 2 runner–ups)

* Legend
* $50,000 tournaments (2–0)
* $25,000 tournaments (2–1)
* $10,000 tournaments (7–1)
* Finals by surface
* Hard (10–1)
* Clay (1–1)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Apr 2013 | ITF Sharm El Sheikh, Egypt | 10,000 | Hard | Arabela Fernández Rabener | 6–4, 6–3 |
| Win | 2–0 | Oct 2013 | ITF Sharm El Sheikh, Egypt | 10,000 | Hard | Klaartje Liebens | 2–6, 6–2, 6–4 |
| Win | 3–0 | Oct 2013 | ITF Sharm El Sheikh, Egypt | 10,000 | Hard | Klaartje Liebens | 6–7$^{(0–7)}$, 6–1, 6–3 |
| Win | 4–0 | Dec 2013 | ITF İstanbul, Turkey | 10,000 | Hard (i) | Karen Barbat | 7–5, 4–6, 6–4 |
| Win | 5–0 | Mar 2014 | ITF Ponta Delgada, Portugal | 10,000 | Hard | Bárbara Luz | 6–2, 6–4 |
| Loss | 5–1 | Jun 2014 | ITF Hilton Head, United States | 10,000 | Hard | Caitlin Whoriskey | 3–6, 6–7$^{(5–7)}$ |
| Win | 6–1 | Jun 2014 | ITF El Paso, United States | 25,000 | Hard | Ashley Weinhold | 6–1, 3–6, 6–4 |
| Win | 7–1 | Jun 2014 | ITF Bangkok, Thailand | 10,000 | Hard | Lee Pei-chi | 6–3, 6–2 |
| Win | 8–1 | Jul 2014 | ITF Bangkok, Thailand | 10,000 | Hard | Nungnadda Wannasuk | 6–1, 6–1 |
| Loss | 8–2 | Jan 2015 | ITF Daytona Beach, United States | 25,000 | Clay | Daria Kasatkina | 2–6, 6–4, 0–6 |
| Win | 9–2 | May 2015 | ITF Pula, Italy | 25,000 | Clay | Yvonne Cavallé Reimers | 7–6$^{(8–6)}$, 6–4 |
| Win | 10–2 | Oct 2015 | Abierto Victoria, Mexico | 50,000 | Hard | Amandine Hesse | 6–4, 6–3 |
| Win | 11–2 | Sep 2016 | Atlanta Open, United States | 50,000 | Hard | Melanie Oudin | 6–4, 6–2 |

### Doubles: 23 (13 titles, 10 runner–ups)

* Legend
* $75,000 tournaments (0–2)
* $50,000 tournaments (4–2)
* $25,000 tournaments (4–3)
* $10/15,000 tournaments (5–3)
* Finals by surface
* Hard (10–8)
* Clay (3–2)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | Apr 2013 | ITF Sharm El Sheikh, Egypt | 10,000 | Hard | Justine De Sutter | Alina Mikheeva Jillian O'Neill | 6–1, 6–4 |
| Win | 2–0 | Oct 2013 | ITF Sharm El Sheikh, Egypt | 10,000 | Hard | Sandra Zaniewska | Valeriya Strakhova Karina Venditti | 6–4, 6–7$^{(5–7)}$, [12–10] |
| Win | 3–0 | Dec 2013 | ITF İstanbul, Turkey | 10,000 | Hard (i) | İpek Soylu | Yuuki Tanaka Ekaterina Yashina | 6–0, 7–6$^{(7–3)}$ |
| Loss | 3–1 | Jan 2014 | ITF Tinajo, Spain | 10,000 | Clay | Arabela Fernández Rabener | Deborah Chiesa Yuliana Lizarazo | 2–6, 6–3, [11–13] |
| Loss | 3–2 | Feb 2014 | ITF Tinajo, Spain | 10,000 | Hard | Arabela Fernández Rabener | Hikari Yamamoto Ioana Loredana Roșca | 1–6, 1–6 |
| Loss | 3–3 | Feb 2014 | ITF Tinajo, Spain | 10,000 | Hard | Bernice van de Velde | Lu Jiajing Petra Januskova | 5–7, 7–5, [6–10] |
| Win | 4–3 | Mar 2014 | ITF Ponta Delgada, Portugal | 10,000 | Hard | Sviatlana Pirazhenka | Tereza Malíková Pernilla Mendesová | 6–1, 6–2 |
| Win | 5–3 | Aug 2014 | ITF Westende, Belgium | 25,000 | Hard | Ysaline Bonaventure | Marina Melnikova Evgeniya Rodina | 6–2, 6–2 |
| Win | 6–3 | Aug 2014 | ITF Wanfercée-Baulet, Belgium | 15,000 | Clay | Demi Schuurs | Tatiana Búa Daniela Seguel | 6–2, 6–3 |
| Loss | 6–4 | Oct 2014 | Internacional de Monterrey, México | 50,000 | Hard | Arantxa Rus | Lourdes Domínguez Lino Mariana Duque | 3–6, 6–7$^{(4–7)}$ |
| Win | 7–4 | Nov 2014 | ITF Sharm El Sheikh, Egypt | 25,000 | Hard | Alice Matteucci | Ioana Loredana Roșca Julia Terziyska | 6–7$^{(1–7)}$, 7–6$^{(7–4)}$, [10–6] |
| Loss | 7–5 | Nov 2014 | New Delhi Open, India | 50,000 | Hard | Marina Melnikova | Liu Chang Lu Jiajing | 3–6, 0–6 |
| Loss | 7–6 | Jan 2015 | ITF Daytona Beach, United States | 25,000 | Clay | Arantxa Rus | Sanaz Marand Jan Abaza | 4–6, 6–3, [6–10] |
| Win | 8–6 | Jul 2015 | ITF Denain, France | 25,000 | Clay | İpek Soylu | Xenia Knoll Florencia Molinero | 7–6$^{(7–3)}$, 6–3 |
| Win | 9–6 | Aug 2015 | ITF Koksijde, Belgium | 25,000 | Clay | Demi Schuurs | Justyna Jegiołka Sherazad Reix | 6–3, 6–2 |
| Win | 10–6 | Sep 2015 | Internacional de Monterrey, México | 50,000 | Hard | Ysaline Bonaventure | Marina Melnikova Mandy Minella | 6–4, 3–6, [11–9] |
| Win | 11–6 | Oct 2015 | Abierto Victoria, Mexico | 50,000 | Hard | Ysaline Bonaventure | María Irigoyen Barbora Krejčíková | 6–4, 4–6, [10–6] |
| Loss | 11–7 | Nov 2015 | Dubai Tennis Challenge, UAE | 75,000 | Hard | İpek Soylu | Çağla Büyükakçay Maria Sakkari | 6–7$^{(6–8)}$, 4–6 |
| Win | 12–7 | Jan 2016 | Open Andrézieux-Bouthéon, France | 50,000 | Hard (i) | An-Sophie Mestach | Viktorija Golubic Xenia Knoll | 6–4, 3–6, [10–7] |
| Loss | 12–8 | Apr 2016 | ITF Changwon, South Korea | 25,000 | Hard | Lu Jiajing | Han Na-lae Yoo Mi | 6–4, 3–6, [7–10] |
| Loss | 12–9 | Aug 2016 | Landisville Tennis Challenge, United States | 25,000 | Hard | An-Sophie Mestach | Freya Christie Laura Robson | 3–6, 4–6 |
| Loss | 12–10 | Sep 2016 | Albuquerque Championships, United States | 75,000 | Hard | Mandy Minella | Michaëlla Krajicek Maria Sanchez | 2–6, 4–6 |
| Win | 13–10 | Oct 2016 | Abierto Tampico, Mexico | 50,000+H | Hard | Mihaela Buzărnescu | Usue Maitane Arconada Katie Swan | 6–0, 6–2 |

## WTA Tour career earnings

Current after the 2022 Wimbledon
| Year | Grand Slam titles | WTA titles | Total titles | Earnings ($) | Money list rank |
| 2015 | 0 | 0 | 0 | 61,272 | 219 |
| 2016 | 0 | 0 | 0 | 140,327 | 157 |
| 2017 | 0 | 1 | 1 | 549,215 | 64 |
| 2018 | 0 | 3 | 3 | 2,364,006 | 17 |
| 2019 | 0 | 1 | 1 | 2,796,400 | 12 |
| 2020 | 0 | 0 | 0 | 1,123,558 | 10 |
| 2021 | 0 | 1 | 1 | 2,098,133 | 9 |
| 2022 | 0 | 1 | 1 | 1,344,235 | 13 |
| Career | 0 | 7 | 7 | 10,522,571 | 54 |

## Career Grand Slam statistics
### Career Grand Slam seedings

The tournaments won by Mertens are in boldface, and advanced into finals by Mertens are in italics.

#### Singles

| Year | Australian Open | French Open | Wimbledon | US Open |
| 2015 | did not play | did not play | did not qualify | did not qualify |
| 2016 | did not qualify | did not qualify | did not qualify | not seeded |
| 2017 | did not play | not seeded | not seeded | not seeded |
| 2018 | not seeded | 16th | 15th | 15th |
| 2019 | 12th | 20th | 21st | 25th |
| 2020 | 16th | 16th | cancelled | 16th |
| 2021 | 18th | 14th | 13th | 15th |
| 2022 | 19th | 31st | 24th | 32nd |
| 2023 | 26th | 28th | 28th | 32nd |
| 2024 | 25th | | | |

#### Doubles

| Year | Australian Open | French Open | Wimbledon | US Open |
| 2016 | did not play | did not play | qualifier | did not play |
| 2017 | not seeded | not seeded | not seeded | not seeded |
| 2018 | not seeded | 12th | 8th | 7th |
| 2019 | not seeded | 6th | 6th | 4th (1) |
| 2020 | 3rd | 3rd | cancelled | 2nd |
| 2021 | 2nd (2) | 1st | 3rd (3) | 1st |
| 2022 | 3rd | 2nd | 1st (1) | 1st |
| 2023 | 4th | 3rd | 3rd (2) | 2nd |
| 2024 | 2nd (4) | | | |

### Best Grand Slam results details

Grand Slam winners are in boldface, and runner–ups are in italics.
Australian Open :
| 2018 Australian Open (Not seeded) ||||
| Round | Opponent | Rank | Score |
| 1R | Viktória Kužmová (Q) | 125 | 6–2, 6–1 |
| 2R | Daria Gavrilova (23) | 23 | 7–5, 6–3 |
| 3R | Alizé Cornet | 42 | 7–5, 6–4 |
| 4R | Petra Martić | 81 | 7–6$^{(7–5)}$, 7–5 |
| QF | Elina Svitolina (4) | 4 | 6–4, 6–0 |
| SF | Caroline Wozniacki (2) | 2 | 3–6, 6–7$^{(2–7)}$ |
French Open :
| 2018 French Open (16th) ||||
| Round | Opponent | Rank | Score |
| 1R | Varvara Lepchenko | 92 | 6–7$^{(9–7)}$, 7–6$^{(7–4)}$, 6–0 |
| 2R | Heather Watson | 80 | 6–3, 6–4 |
| 3R | Daria Gavrilova (24) | 25 | 6–3, 6–1 |
| 4R | Simona Halep (1) | 1 | 2–6, 1–6 |
| 2022 French Open (31st) ||||
| Round | Opponent | Rank | Score |
| 1R | Elena-Gabriela Ruse | 51 | 6–3, 6–1 |
| 2R | Marie Bouzková | 69 | w/o |
| 3R | Varvara Gracheva | 71 | 6–2, 6–3 |
| 4R | Coco Gauff (18) | 23 | 4–6, 0–6 |
Wimbledon Championships :
| 2019 Wimbledon Championships (21st) ||||
| Round | Opponent | Rank | Score |
| 1R | Fiona Ferro | 100 | 6–2, 6–0 |
| 2R | Monica Niculescu (WC) | 111 | 7–5, 6–0 |
| 3R | Wang Qiang (15) | 15 | 6–2, 6–7$^{(9–11)}$, 6–4 |
| 4R | Barbora Strýcová | 54 | 6–4, 5–7, 2–6 |
| 2022 Wimbledon Championships (24th) ||||
| Round | Opponent | Rank | Score |
| 1R | Camila Osorio | 63 | 1–6, 6–2, 4–2 ret. |
| 2R | Panna Udvardy | 100 | 3–6, 7–6, 7–5 |
| 3R | Angelique Kerber (15) | 19 | 6–4, 7–5 |
| 4R | Ons Jabeur (3) | 2 | 6–7, 4–6 |
US Open :
| 2019 US Open (25th) ||||
| Round | Opponent | Rank | Score |
| 1R | Jil Teichmann | 60 | 6–2, 6–2 |
| 2R | Kristýna Plíšková | 86 | 6–2, 6–2 |
| 3R | Andrea Petkovic | 88 | 6–3, 6–3 |
| 4R | Kristie Ahn (WC) | 141 | 6–1, 6–1 |
| QF | Bianca Andreescu (15) | 15 | 6–3, 2–6, 3–6 |
| 2020 US Open (16th) ||||
| Round | Opponent | Rank | Score |
| 1R | Laura Siegemund | 64 | 6–2, 6–2 |
| 2R | Sara Sorribes Tormo | 82 | 6–3, 7–5 |
| 3R | Caty McNally | 124 | 7–5, 6–1 |
| 4R | Sofia Kenin (2) | 4 | 6–3, 6–3 |
| QF | Victoria Azarenka | 27 | 1–6, 0–6 |

## Head-to-head statistics
### Wins against top 10 players

| # | Player | Rk | Event | Surface | Rd | Score | Rk |
| 2017 |||||||||
| 1. | Dominika Cibulková | 10 | China Open, China | Hard | 1R | 7–6$^{(7–4)}$, 6–1 | 38 |
| 2018 |||||||||
| 2. | Elina Svitolina | 4 | Australian Open, Australia | Hard | QF | 6–4, 6–0 | 37 |
| 3. | Sloane Stephens | 3 | Cincinnati Open, United States | Hard | 3R | 7–6$^{(10–8)}$, 6–2 | 14 |
| 2019 |||||||||
| 4. | Kiki Bertens | 8 | Qatar Open, Qatar | Hard | QF | 6–4, 6–3 | 21 |
| 5. | Angelique Kerber | 6 | Qatar Open, Qatar | Hard | SF | 6–4, 2–6, 6–1 | 21 |
| 6. | Simona Halep | 3 | Qatar Open, Qatar | Hard | F | 3–6, 6–4, 6–3 | 21 |
| 2020 |||||||||
| 7. | Sofia Kenin | 4 | US Open, United States | Hard | 4R | 6–3, 6–3 | 18 |
| 2021 |||||||||
| 8. | Elina Svitolina | 5 | Gippsland Trophy, Australia | Hard | QF | 6–3, 5–7, [10–6] | 20 |
| 9. | Simona Halep | 3 | Madrid Open, Spain | Clay | 3R | 4–6, 7–5, 7–5 | 16 |
| 2023 |||||||||
| 10. | Daria Kasatkina | 8 | Miami Open, United States | Hard | 2R | 4–6, 6–2, 6–2 | 39 |
| 11. | Jessica Pegula | 3 | French Open, France | Clay | 3R | 6–1, 6–3 | 28 |

### Double bagel matches

| Result | Year | W–L | Tournament | Tier | Surface | Opponent | Rank | Rd | EMR |
| Win | 2013 | 1–0 | ITF Sharm El Sheikh, Egypt | 10,000 | Hard | Sara Sherif (WC) | – | 1R | No. 751 |
| Win | 2013 | 2–0 | ITF Sharm El Sheikh, Egypt | 10,000 | Hard | Yulia Shupenia | – | 2R | No. 751 |
| Win | 2014 | 3–0 | ITF Polta Delgada, Portugal | 10,000 | Hard | Marta Magalhaes (WC) | – | 1R | No. 501 |
| Win | 2014 | 4–0 | ITF Hilton Head Island, U.S. | 10,000 | Hard | Terri Fleming (Q) | – | QF | No. 434 |
| Win | 2015 | 5–0 | ITF Le Havre, France | 10,000 | Clay | Justine Ozga | No. 677 | 2R | No. 218 |
| Win | 2016 | 6–0 | Abierto Tampico, Mexico | 50,000+H | Hard | Karla De La Luz Montalvo (LL) | – | 1R | No. 132 |
| Win | 2018 | 7–0 | Morocco Open, Morocco | International | Clay | Kristína Kučová | No. 281 | 1R | No. 19 |
| Win | 2023 | 8–0 | Qatar Open, Qatar | WTA 500 | Hard | Mubaraka Al-Naimi (WC) | – | Q1 | No. 32 |

## Longest winning streaks
### 13 match win streak (2018)

| # | Tournament | Category | Start date | Surface | Rd | Opponent | Rank | Score |
| – | Miami Open | Premier Mandatory | 20 March 2018 | Hard | 3R | Johanna Konta (11) | No. 14 | 2–6, 1–6 |
| 1 | Ladies Open Lugano | International | 9 April 2018 | Clay | 1R | Mandy Minella | No. 301 | 6–4, 6–1 |
| 2 | Ladies Open Lugano | International | 9 April 2018 | Clay | 2R | Markéta Vondroušová | No. 52 | 6–2, 5–7, 7–5 |
| 3 | Ladies Open Lugano | International | 9 April 2018 | Clay | QF | Mona Barthel | No. 68 | 6–4, 5–7, 7–6$^{(7–0)}$ |
| 4 | Ladies Open Lugano | International | 9 April 2018 | Clay | SF | Vera Lapko (Q) | No. 130 | 6–1, 4–6, 6–4 |
| 5 | Ladies Open Lugano | International | 9 April 2018 | Clay | F | Aryna Sabalenka | No. 61 | 7–5, 6–2 |
| 6 | Fed Cup | Team | 21 April 2018 | Clay | RR | Sara Errani | No. 91 | 6–3, 6–1 |
| 7 | Fed Cup | Team | 21 April 2018 | Clay | RR | Jasmine Paolini | No. 145 | 6–1, 7–5 |
| 8 | Morocco Open | International | 30 April 2018 | Clay | 1R | Kristína Kučová | No. 281 | 6–0, 6–0 |
| 9 | Morocco Open | International | 30 April 2018 | Clay | 2R | Laura Siegemund | No. 226 | 6–7$^{(5–7)}$, 6–0, 3–1 ret. |
| 10 | Morocco Open | International | 30 April 2018 | Clay | QF | Sara Errani | No. 89 | 6–3, 6–1 |
| 11 | Morocco Open | International | 30 April 2018 | Clay | SF | Hsieh Su-wei (8) | No. 60 | 6–0, 6–2 |
| 12 | Morocco Open | International | 30 April 2018 | Clay | F | Ajla Tomljanović | No. 96 | 6–2, 7–6$^{(7–4)}$ |
| 13 | Madrid Open | Premier Mandatory | 5 May 2018 | Clay | 1R | Alison Van Uytvanck | No. 47 | 6–4, 6–4 |
| – | Madrid Open | Premier Mandatory | 5 May 2018 | Clay | 2R | Simona Halep (1) | No. 1 | 0–6, 3–6 |