# Steven Diez

Steven Diez (Spanish: Díez, pronounced; born March 17, 1991) is a Canadian professional tennis player. He competed for Spain earlier in his career.

## Nationality change

Raised primarily in and competing for Spain early in his career, he has since gone on to represent the country of his birth, Canada, in the Davis Cup. Diez was a member of the Canadian team that won the 2022 ATP Cup.

## Tennis career
### 2007

Diez competed in the main draw of two senior level ITF Futures tournaments in the autumn, losing both times in the first round. In his first match, at Spain F39 in late October, he fell to world No. 422 Carles Poch Gradin. He fared much better a month later taking a set off world No. 425 Juan Albert Viloca-Puig before losing.

### 2008

Diez won his first tour match in his third tournament of the year, Spain F11. He won his first ever doubles match too, partnering Ignacio Morente-Gemas to the second round of Spain F13. He then won two matches partnering Javier Valenzuela-Gonzalez to reach the semifinals of Spain F14. The same pairing reached the semis in their next tournament too, in July, at Spain F26.
In late April he competed in qualifying for an ATP World Tour event, the 2008 Torneo Godó, losing in the first round to Marc López. In July in consecutively played Futures he won his first-round match, but he failed, in singles, to reach the second round in his last five events of the year. Partnering Valenzuela-Gonzalez, he reached the second round in more events than not during this same stretch. He finished the year ranked world No. 1190 in singles and No. 1274 in doubles.

### 2009

In his third main draw for the year Diez had a break through in reaching the semi-finals of Spain F5. Two weeks later he reached his first career final, in doubles partnering José Checa Calvo at Spain F7. In June, he competed in his first main draw in an ATP Challenger, as a wild card entrant at the 2009 Open Diputación Ciudad de Pozoblanco, and reached the quarterfinals, where he lost to eventual runner-up, Thiago Alves.
The following week Diez captured his first tour title, that of Spain F23 in singles, defeating David Canudas-Fernandez in the final. His singles wins stopped there as he won only one further tour main draw for the remainder of the year while losing eight. In doubles, however, Diez continued to do well not losing in the first round for the year aside from his very first tourney. He finished the year ranked world No. 571 in singles and No. 893 in doubles.

### 2010

Diez did not win a singles main-draw match in his first five events of the year leading into a call-up of sorts by Tennis Canada to represent the country of his birth in the Davis Cup. Diez was recruited for his clay court ability as Canada faced Colombia on red clay in Bogotá. Despite breaking the serve in the first game of the match, Diez went down to World No. 93 Santiago Giraldo in straight sets as Canada lost the tie, 1–4.
In April, Diez finally won a main draw singles match, at Spain F11. He reached the second round in three consecutive events before taking his second title of this career, Spain F15 in May. He then reached the semi-finals in two of his next three events. As one of the top-ranked Canadians, Diez received wild cards into events in Canada this summer. After losing in the first round of the Challenger de Granby, he qualified for the main draw of the Vancouver Open, but lost in three close sets to Alex Kuznetsov in the first round. He won a set from Michael Russell, before falling in the first round of qualifying for the 2010 Rogers Cup in Toronto, in early August.
After reaching the semifinals of Spain F30 the week after the Rogers Cup, and losing in the first round of Belgium F3 the following week, Diez was off from match play until last week, where, as the No. 6 seed at Canada F4, he reached the semifinals. En route he won his quarterfinal match over No. 2 seed Brendan Evans, 3–6, 6–1, 3–0 ret. In doubles, he and partner Nikolai Haessig, a top Canadian junior, lost in the first round.
The following week Diez was upset in the first round of Canada F5, as the No. 4 seed, to world No. 792 Phillip Simmonds , 2–6, 3–6. He and partner Haessig reached the semifinals in doubles however. This result saw Steven's doubles ranking reach a new career high the following week, of World No. 769. After two weeks off, he played three consecutive Futures events in Spain, reaching the second round in Spain F37 in Sabadell, the quarterfinals at Spain F38 in Sant Cugat, and losing in the first round of Spain F39 in Vilafranca del Penedès. In doubles, he and partner Abraham Gonzalez-Jimenez reached the second round of Spain F37 and lost in the first round of Spain F38. They did not compete at Spain F39.

### 2019: Career-high ranking

He reached a career-high ranking of world No. 134, on 18 November 2019.

### 2020: Grand Slam debut at French Open

After 15 attempts at qualifying at a major, he finally made his Grand Slam debut at the 2020 French Open.

### 2022: ATP Cup champion

He won the ATP Cup with team Canada defeating the Spanish team.

## Singles performance timeline

Key :
| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |
| Tournament | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | SR | W–L | Win % |
| Grand Slam tournaments ||||||||||||||||||
| Australian Open | A | A | A | Q2 | Q1 | A | A | Q1 | A | A | Q2 | Q2 | A | A | 0 / 0 | 0–0 | – |
| French Open | A | A | A | Q1 | Q1 | A | A | Q2 | A | A | 1R | Q2 | A | A | 0 / 1 | 0–1 | 0% |
| Wimbledon | A | A | A | Q2 | Q1 | A | Q1 | Q2 | A | Q2 | NH | Q1 | A | A | 0 / 0 | 0–0 | – |
| US Open | A | A | A | Q1 | A | A | Q3 | A | A | Q3 | A | Q1 | A | A | 0 / 0 | 0–0 | – |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–1 | 0–0 | 0–0 | 0–0 | 0 / 1 | 0–1 | 0% |
| ATP Tour Masters 1000 ||||||||||||||||||
| Indian Wells | A | A | A | A | Q1 | A | A | A | A | A | NH | Q1 | A | A | 0 / 0 | 0–0 | – |
| Rome | A | A | A | A | A | A | A | A | A | A | Q2 | A | A | A | 0 / 0 | 0–0 | – |
| Toronto / Montreal | Q1 | Q1 | A | Q1 | Q1 | A | 2R | A | A | Q2 | NH | Q1 | Q1 | A | 0 / 1 | 1–1 | 50% |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 1–1 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0 / 1 | 1–1 | 50% |

## Other finals
### Team competitions: 1 (1 title)

| Result | Date | Tournament | Surface | Partners | Opponents | Score |
| Win | Jan 2022 | ATP Cup, Sydney | Hard | Félix Auger-Aliassime Denis Shapovalov Brayden Schnur | Roberto Bautista Agut Pablo Carreño Busta A Davidovich Fokina Albert Ramos Viñolas Pedro Martínez | 2–0 |

## Challenger and Futures finals
### Singles: 41 (23–18)

* Legend (singles)
* ATP Challenger Tour (1–5)
* ITF Futures Tour (22–13)
* Titles by surface
* Hard (6–7)
* Clay (17–11)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Jul 2009 | Spain F23, Elche | Futures | Clay | David Cañudas-Fernández | 6–1, 6–4 |
| Win | 2–0 | May 2010 | Spain F15, Balaguer | Futures | Clay | David Estruch | 6–2, 6–1 |
| Win | 3–0 | Apr 2011 | Brazil F11, Aracaju | Futures | Clay (i) | Roman Vögeli | 6–1, 6–2 |
| Loss | 3–1 | Jul 2011 | Canada F3, Mississauga | Futures | Hard | Li Zhe | 2–6, 3–6 |
| Win | 4–1 | Oct 2011 | Spain F39, Vilafranca | Futures | Clay | Jordi Samper Montaña | 3–6, 6–2, 6–4 |
| Win | 5–1 | Nov 2011 | Spain F41, Madrid | Futures | Clay | Matthew Pierot | 6–0, 6–2 |
| Loss | 5–2 | Jan 2012 | Turkey F3, Antalya | Futures | Hard | Dimitar Kutrovsky | 3–6, 0–6 |
| Win | 6–2 | Feb 2012 | Spain F3, Murcia | Futures | Clay | Pedro Sousa | 2–6, 6–4, 6–3 |
| Loss | 6–3 | May 2012 | Spain F11, Lleida | Futures | Clay | Sergio Gutiérrez Ferrol | 6–3, 1–6, 5–7 |
| Win | 7–3 | May 2012 | Poland F1, Sobota | Futures | Clay | Andriej Kapaś | 7–6$^{(7–4)}$, 6–3 |
| Win | 8–3 | Oct 2012 | Algeria F1, Annaba | Futures | Clay | Gerald Melzer | 6–2, 6–3 |
| Win | 9–3 | Oct 2012 | Algeria F2, Annaba | Futures | Clay | Alexander Slabinsky | 4–6, 6–4, 6–1 |
| Win | 10–3 | Oct 2012 | Algeria F3, Alger | Futures | Clay | Francesco Picco | 6–1, 4–6, 6–2 |
| Loss | 10–4 | May 2013 | Spain F14, Valldoreix | Futures | Clay | Taro Daniel | 3–6, 2–6 |
| Win | 11–4 | Jun 2013 | Spain F16, Santa Margarida de Montbui | Futures | Hard | José Checa Calvo | 6–1, 6–2 |
| Win | 12–4 | Jun 2013 | Spain F17, Martos | Futures | Hard | Ramkumar Ramanathan | 7–5, 6–7$^{(4–7)}$, 6–4 |
| Loss | 12–5 | Jan 2014 | Nouméa, New Caledonia | Challenger | Hard | Alejandro Falla | 2–6, 2–6 |
| Win | 13–5 | Aug 2015 | Switzerland F4, Sion | Futures | Clay | Federico Coria | 5–7, 7–5, 6–1 |
| Win | 14–5 | Oct 2015 | Spain F32, Sant Cugat del Vallès | Futures | Clay | Marcos Giraldi Requena | 6–1, 6–0 |
| Loss | 14–6 | Oct 2015 | Greece F8, Heraklion | Futures | Hard | Václav Šafránek | 6–7$^{(8–10)}$, 4–6 |
| Win | 15–6 | Nov 2015 | Greece F9, Heraklion | Futures | Hard | Stefanos Tsitsipas | 6–2, 6–0 |
| Loss | 15–7 | Jan 2016 | Spain F1, Castelldefels | Futures | Clay | Gerard Granollers Pujol | 3–6, 1–6 |
| Win | 16–7 | Feb 2016 | Spain F2, Peguera | Futures | Clay | Paweł Ciaś | 4–6, 6–2, 7–6$^{(9–7)}$ |
| Win | 17–7 | Feb 2016 | Spain F4, Murcia | Futures | Clay | Alex de Minaur | 6–3, 6–4 |
| Win | 18–7 | Mar 2016 | Spain F6, Tarragona | Futures | Clay | Gerard Granollers Pujol | 5–7, 6–1, 6–0 |
| Loss | 18–8 | Mar 2016 | Morocco F2, Beni Mellal | Futures | Clay | Lamine Ouahab | 2–6, 6–4, 2–6 |
| Loss | 18–9 | Apr 2016 | Spain F7, Madrid | Futures | Hard | Akira Santillan | 4–6, 6–7$^{(5–7)}$ |
| Loss | 18–10 | Jun 2016 | Moscow, Russia | Challenger | Clay | Mikhail Kukushkin | 3–6, 3–6 |
| Loss | 18–11 | Oct 2017 | Spain F31, Sabadell | Futures | Clay | Sergio Gutiérrez Ferrol | 3–6, 6–7$^{(5–7)}$ |
| Win | 19–11 | Oct 2017 | Spain F32, Melilla | Futures | Clay | Miguel Semmler | 6–2, 6–0 |
| Loss | 19–12 | Oct 2017 | Tunisia F31, Hammamet | Futures | Clay | Nino Serdarušić | 3–6, 6–3, 4–6 |
| Loss | 19–13 | Jan 2018 | China F2, Anning | Futures | Clay | Yang Tsung-hua | 3–6, 6–3, 6–7$^{(4–7)}$ |
| Win | 20–13 | Apr 2018 | Spain F10, Majadahonda | Futures | Clay | Pedro Cachin | 6–3, 3–6, 7–5 |
| Loss | 20–14 | Nov 2018 | Tunisia F39, Monastir | Futures | Hard | Ivan Gakhov | 6–3, 2–6, 1–6 |
| Win | 21–14 | Dec 2018 | Tunisia F43, Monastir | Futures | Hard | Gabriel Petit | 6–2, 6–3 |
| Win | 22–14 | Dec 2018 | Tunisia F45, Monastir | Futures | Hard | Clément Tabur | 6–3, 7–6$^{(7–3)}$ |
| Win | 23–14 | Jan 2019 | Burnie, Australia | Challenger | Hard | Maverick Banes | 7–5, 6–1 |
| Loss | 23–15 | Oct 2019 | Ningbo, China | Challenger | Hard | Yasutaka Uchiyama | 1-6, 3-6 |
| Loss | 23–16 | Feb 2021 | Las Palmas, Spain | Challenger | Clay | Enzo Couacaud | 6–7$^{(5–7)}$, 6–7$^{(3–7)}$ |
| Loss | 23–17 | Oct 2022 | M25 Girona, Spain | World Tennis Tour | Clay | Oriol Roca Batalla | 3–6, 3–6 |
| Loss | 23–18 | Dec 2022 | Maspalomas, Spain | Challenger | Clay | Dušan Lajović | 1–6, 4–6 |

### Doubles: 21 (9–12)

* Legend (doubles)
* ATP Challenger Tour (0–1)
* ITF Futures Tour (9–11)
* Finals by surface
* Hard (3–8)
* Clay (6–4)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Mar 2009 | Spain F7, Terrassa | Futures | Clay | José Checa Calvo | Francesco Aldi Alessandro Piccari | 0–6, 2–6 |
| Loss | 0–2 | Oct 2009 | Spain F34, Córdoba | Futures | Hard | Juan Lizariturry | Agustín Boje-Ordóñez Pablo Martín-Adalia | 3–6, 3–6 |
| Loss | 0–3 | Jan 2011 | Israel F1, Eilat | Futures | Hard | Fernando Vicente | Jozef Kovalík Adrian Sikora | 6–2, 3–6, [10–12] |
| Loss | 0–4 | Jan 2011 | Israel F2, Eilat | Futures | Hard | Nikola Ćaćić | Damir Džumhur Ismar Gorčić | 3–6, 4–6 |
| Win | 1–4 | Mar 2011 | Portugal F1, Faro | Futures | Hard | Fernando Vicente | Agustín Boje-Ordóñez Pablo Martín-Adalia | 6–3, 6–4 |
| Win | 2–4 | Apr 2011 | Brazil F9, Santa Maria | Futures | Clay | Roman Vögeli | Daniel Alejandro López Cassaccia Martín Ríos-Benítez | 7–6$^{(7–5)}$, 6–3 |
| Win | 3–4 | Apr 2011 | Brazil F11, Aracaju | Futures | Clay (i) | Roman Vögeli | Mauricio Doria-Medina Daniel Alejandro López Cassaccia | 6–1, 7–6$^{(7–0)}$ |
| Loss | 3–5 | Jun 2011 | Spain F20, Martos | Futures | Hard | Ilya Belyaev | Harri Heliövaara Denys Molchanov | 3–6, 4–6 |
| Win | 4–5 | Oct 2011 | Spain F35, Sevilla | Futures | Clay | Fernando Vicente | Axel Álvarez Llamas Ricardo Ojeda Lara | 6–2, 6–1 |
| Win | 5–5 | Oct 2011 | Spain F38, Sabadell | Futures | Clay | João Sousa | Miguel Ángel López Jaén Gabriel Trujillo Soler | 6–3, 3–6, [10–7] |
| Win | 6–5 | Oct 2012 | Algeria F2, Annaba | Futures | Hard | Marc Giner | Francesc Montañés-Roca Ronald Slobodchikov | 6–4, 6–2 |
| Win | 7–5 | Mar 2013 | Croatia F5, Rovinj | Futures | Clay | Tomislav Brkić | Nikolaus Moser Tristan-Samuel Weissborn | 6–2, 6–2 |
| Loss | 7–6 | Jun 2013 | Russia F8, Moscow | Futures | Clay | Vladislav Dubinsky | Aliaksandr Bury Volodymyr Uzhylovskyi | 0–6, 1–6 |
| Loss | 7–7 | Aug 2014 | Como, Italy | Challenger | Clay | Enrique López Pérez | Guido Andreozzi Facundo Argüello | 2–6, 2–6 |
| Loss | 7–8 | Oct 2015 | Spain F32, Sant Cugat del Vallès | Futures | Clay | Andrés Artuñedo Martínavarro | Sergio Martos Gornés Pol Toledo Bagué | 2–6, 3–6 |
| Loss | 7–9 | Nov 2015 | Cyprus F2, Limassol | Futures | Hard | Andrés Artuñedo Martínavarro | Petros Chrysochos Nino Serdarušić | 6–1, 4–6, [3–10] |
| Loss | 7–10 | Dec 2015 | Cyprus F3, Limassol | Futures | Hard | Andrés Artuñedo Martínavarro | Konstantinos Economidis Markos Kalovelonis | 6–4, 3–6, [5–10] |
| Win | 8–10 | Oct 2017 | Tunisia F31, Hammamet | Futures | Clay | Bruno Mardones | Guy den Heijer Sidane Pontjodikromo | 6–2, 6–4 |
| Loss | 8–11 | Mar 2018 | Portugal F6, Lisbon | Futures | Hard | Bruno Mardones | Kenneth Raisma Emil Ruusuvuori | 6–7$^{(2–7)}$, 2–6 |
| Win | 9–11 | Nov 2018 | Tunisia F40, Monastir | Futures | Hard | Sergio Martos Gornés | Mikalai Haliak Alexander Zgirovsky | 6–3, 6–1 |
| Loss | 9–12 | Dec 2018 | Tunisia F43, Monastir | Futures | Hard | Marco Bortolotti | Evan Hoyt Luke Johnson | 4–6, 2–6 |