# Katharina Gerlach

Katharina Gerlach (born 19 February 1998) is a German inactive tennis player.
She has won four singles and seven doubles titles on the ITF Circuit. On 25 April 2022, she reached her best singles ranking of world No. 217. On 2 July 2018, she peaked at No. 238 in the doubles rankings.
Gerlach made her WTA Tour debut at the 2015 Nürnberger Versicherungscup, partnering Lena Rüffer in doubles. They lost in the first round to eventual tournament champions, Chan Hao-ching and Anabel Medina Garrigues.

## Performance timelines

Key :
| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |
Only main-draw results in WTA Tour are included in win–loss records.

### Singles

Current through the 2023 WTA Tour.
| Tournament | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | SR | W–L |
| Grand Slam tournaments |||||||||||
| Australian Open | A | A | A | A | A | Q2 | Q1 | A | 0 / 0 | 0–0 |
| French Open | A | A | A | A | A | A | Q2 | A | 0 / 0 | 0–0 |
| Wimbledon | A | A | A | A | A | Q1 | Q1 | A | 0 / 0 | 0–0 |
| US Open | A | A | A | A | A | Q1 | Q1 | 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 |
| Career statistics |||||||||||
| Tournaments | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 3 |
| Overall win–loss | 0–1 | 0–1 | 0–0 | 0–0 | 0–0 | 0–1 | 0–0 | 0–0 | 0–3 | 0–3 |
| Year-end ranking | 599 | 385 | 355 | 244 | 245 | 223 | 399 | – | | |

## ITF Circuit finals
### Singles: 13 (4 titles, 9 runner–ups)

* Legend
* $100,000 tournaments (0–0)
* $80,000 tournaments (0–0)
* $60,000 tournaments (0–0)
* $25,000 tournaments (1–7)
* $10/15,000 tournaments (3–2)
* Finals by surface
* Hard (0–0)
* Clay (4–9)
* Grass (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Aug 2015 | ITF Vienna, Austria | 10,000 | Clay | Julia Grabher | 3–6, 6–3, 1–6 |
| Win | 1–1 | Sep 2016 | ITF Říčany, Czech Republic | 10,000 | Clay | Miriam Kolodziejová | 7–5, 6–2 |
| Loss | 1–2 | Jan 2017 | ITF Hammamet, Tunisia | 15,000 | Clay | Cristina Dinu | 2–6, 1–6 |
| Win | 2–2 | Jun 2017 | ITF Kaltenkirchen, Germany | 15,000 | Clay | Magali Kempen | 6–4, 7–6$^{(7–2)}$ |
| Win | 3–2 | Sep 2017 | ITF Badenweiler, Germany | 15,000 | Clay | Priscilla Heise | 6–4, 2–6, 6–4 |
| Loss | 3–3 | Jul 2018 | ITF Darmstadt, Germany | 25,000 | Clay | Aliona Bolsova | 2–6, 1–6 |
| Win | 4–3 | Jul 2018 | ITF Horb, Germany | 25,000 | Clay | Katarzyna Piter | 4–6, 6–3, 7–6$^{(7–4)}$ |
| Loss | 4–4 | Aug 2019 | ITF Bad Saulgau, Germany | 25,000 | Clay | Sara Sorribes Tormo | 6–7$^{(4–7)}$, 1–6 |
| Loss | 4–5 | Aug 2019 | ITF Leipzig, Germany | 25,000 | Clay | Jule Niemeier | 3–6, 3–6 |
| Loss | 4–6 | Aug 2019 | ITF Braunschweig, Germany | 25,000 | Clay | Çağla Büyükakçay | 4–6, 2–6 |
| Loss | 4–7 | Sep 2019 | ITF Frýdek-Místek, Czech Republic | 25,000 | Clay | Ekaterine Gorgodze | 1–6, 6–7$^{(6–8)}$ |
| Loss | 4–8 | Oct 2021 | ITF Lima, Peru | 25,000 | Clay | Dea Herdželaš | 2–6, 2–6 |
| Loss | 4–9 | Oct 2021 | ITF Guayaquil, Ecuador | 25,000 | Clay | Laura Pigossi | 0–6, 2–6 |

### Doubles: 11 (7 titles, 4 runner–ups)

* Legend
* $100,000 tournaments (0–0)
* $80,000 tournaments (0–1)
* $60,000 tournaments (1–1)
* $25,000 tournaments (4–1)
* $15,000 tournaments (2–1)
* Finals by surface
* Hard (0–0)
* Clay (7–4)
* Grass (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | Jun 2016 | ITF Braunschweig, Germany | 25,000 | Clay | Katharina Hobgarski | Anita Husarić Nina Stojanović | 6–4, 6–3 |
| Win | 1–0 | Feb 2017 | ITF Palma Nova, Spain | 15,000 | Clay | Katharina Hobgarski | Yvonne Cavallé Reimers Olga Sáez Larra | 6–4, 6–4 |
| Win | 3–0 | Jul 2017 | ITF Versmold, Germany | 60,000 | Clay | Julia Lohoff | Misa Eguchi Akiko Omae | 4–6, 6–1, [10–7] |
| Loss | 3–1 | Mar 2018 | ITF Palma Nova, Spain | 15,000 | Clay | Lena Rüffer | Yukina Saigo Aiko Yoshitomi | 4–6, 2–6 |
| Loss | 3–2 | Mar 2018 | ITF Pula, Italy | 25,000 | Clay | Lena Rüffer | Ekaterine Gorgodze Sofia Shapatava | 4–6, 6–7$^{(5–7)}$ |
| Win | 4–2 | Jun 2018 | ITF Essen, Germany | 25,000 | Clay | Julia Lohoff | Diana Marcinkevica Chanel Simmonds | 6–4, 2–6, [10–6] |
| Win | 5–2 | Jun 2018 | ITF Kaltenkirchen, Germany | 15,000 | Clay | Anna Gabric | Vlada Katic Sviatlana Pirazhenka | 6–2, 5–7, [10–8] |
| Win | 6–2 | Jul 2019 | ITF Horb, Germany | 25,000 | Clay | Julia Lohoff | Albina Khabibulina Sofia Shapatava | 6–1, 6–3 |
| Win | 7–2 | Oct 2021 | ITF Rio do Sul, Brazil | 25,000 | Clay | Daniela Seguel | Bárbara Gatica Rebeca Pereira | 7–6$^{(10–8)}$, 6–3 |
| Loss | 7–3 | Nov 2021 | ITF Santiago, Chile | 60,000 | Clay | Daniela Seguel | Arianne Hartono Olivia Tjandramulia | 1–6, 3–6 |
| Loss | 7–4 | Apr 2022 | ITF Oeiras, Portugal | 80,000 | Clay | Natalija Stevanović | Katarzyna Piter Kimberley Zimmermann | 1–6, 1–6 |