Alex Knaff
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| Country (sports) |  Luxembourg |
|---|---|
| Born | 26 November 1997 Luxembourg City, Luxembourg |
| Height | 1.93 m (6 ft 4 in) |
| Plays | Right-handed (two-handed backhand) |
| College | Florida State |
| Coach | Gilles Müller |
| Prize money | US $81,288 |
| Singles | |
| Career record | 9–7 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 0 Challenger, 2 Futures |
| Highest ranking | No. 486 (11 September 2023) |
| Current ranking | No. 761 (14 September 2026) |
| Doubles | |
| Career record | 3–3 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 0 Challenger, 7 Futures |
| Highest ranking | No. 364 (11 September 2023) |
| Current ranking | No. 1,489 (14 September 2026) |
| Last updated on: 18 September 2026. | |
Alex Knaff (born 26 November 1997) is a Luxembourgish tennis player. He has a career high ATP singles ranking of No. 486 achieved on 11 September 2023 and a career high ATP doubles ranking of No. 364 achieved on 11 September 2023.
Knaff represents Luxembourg at the Davis Cup since 2015, where he has a W/L record of 12–10.
Knaff played college tennis at Florida State University.[1]
Future and Challenger finals
[edit]Singles 4 (3-3)
[edit]
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| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Loss | 0–1 | May 2022 |  Mexico M15, Cancun |
World Tennis Tour | Hard |  Brandon Holt |
1–6, 2–6 |
| Win | 1–1 | Oct 2022 | USA M15, Tallahassee |
World Tennis Tour | Hard | William Grant |
6–3, 6–0 |
| Win | 2–1 | July 2023 | Luxembourg M25, Esch-sur-Alzette |
World Tennis Tour | Clay |  Marlon Vankan |
6–3, 6–1 |
| Loss | 2–2 | October 2023 |  Egypt M15, Sharm El Sheikh |
World Tennis Tour | Hard | Mohamed Safwat |
4–6, 4–6 |
| Win | 3–2 | March 2025 |  Thailand M15, Nonthaburi |
World Tennis Tour | Hard |  Petr Bar Biryukov |
6-1, 7-6(7–3) |
| Loss | 3-3 | March 2025 | Thailand M15, Nonthaburi |
World Tennis Tour | Hard |  Etienne Donnet |
4–6, 2–6 |
Doubles 14 (7–7)
[edit]
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| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Nov 2021 | United States M15, Ithaca |
World Tennis Tour | Hard |  Joshua Peck |
Vasil Kirkov Luke Johnson |
6–7(3–7), 3–6 |
| Loss | 0–2 | Mar 2022 |  Tunisia M15, Monastir |
World Tennis Tour | Hard | Aziz Dougaz |
 Hanwen Li Mateo Nicolas Martinez |
1–6, 6–2, 8–10 |
| Win | 1–2 | Mar 2022 | Tunisia M15, Monastir |
World Tennis Tour | Hard | Aziz Dougaz |
 Tomohiro Masabayashi Ren Nakamura |
6–2, 6–4 |
| Loss | 1-3 | Apr 2022 | United States M15, Sunrise |
World Tennis Tour | Clay |  Alec Deckers |
 Alexander Cozbinov Ruan Roelofse |
4–6, 4–6 |
| Win | 2-3 | Jun 2022 |  Belgium M15, Duffel |
World Tennis Tour | Clay | Chris Rodesch |
Franco Emanuel Egea Marcelo Zormann |
6–1, 6–4 |
| Win | 3-3 | Jul 2022 | Luxembourg M25, Esch-sur-Alzette |
World Tennis Tour | Clay | Chris Rodesch |
Raphael Calzi Marlon Vankan |
6–1, 6–4 |
| Win | 4-3 | Jan 2023 |  Manacor M25, Manacor |
World Tennis Tour | Hard |  Filip Bergevi |
Alberto Barroso Campos Imanol López Morillo |
3–6, 6–3, 16–14 |
| Loss | 4-4 | Mar 2023 | Sharm El Sheikh M15, Sharm El Sheikh |
World Tennis Tour | Hard | Jakob Schnaitter |
 Lukáš Pokorný Saba Purtseladze |
3–4, 4–6 |
| Loss | 4-5 | Mar 2023 | Sharm El Sheikh M15, Sharm El Sheikh |
World Tennis Tour | Hard | Jakob Schnaitter |
Alec Beckley Petr Nesterov |
6-3, 3–6, 8–10 |
| Win | 5-5 | May 2023 | Pazardzhik M15, Pazardzhik |
World Tennis Tour | Clay | Corentin Denolly |
 Riccardo Balzerani Artsiom Sinitsyn |
6-0, 6–0 |
| Win | 6-5 | July 2023 | Luxembourg M25, Esch-sur-Alzette |
World Tennis Tour | Clay | Chris Rodesch |
 Dimitris Sakellaridis Stefanos Sakellaridis |
6-3, 6–4 |
| Win | 7-5 | July 2023 | Luxembourg M25, Esch-sur-Alzette |
World Tennis Tour | Clay |  David Pichler |
Dimitris Sakellaridis Stefanos Sakellaridis |
1-6, 6–1, 12–10 |
| Loss | 7-6 | Feb 2024 | Villena M15, Villena |
World Tennis Tour | Hard |  Adrià Soriano Barrera |
Liam Gavrielides Alejo Sanchez Quilez |
2-6, 4–6 |
| Loss | 7-7 | Mar 2024 | Torello M15, Torello |
World Tennis Tour | Hard | Niklas Schell |
James Davis Giles Hussey |
1-6, 2–6 |
References
[edit]- ↑ "ALEX KNAFF". Florida State Seminoles. 21 July 2017.
External links
[edit]- Alex Knaff at the Association of Tennis Professionals
- Alex Knaff at the International Tennis Federation
- Alex Knaff at the Davis Cup
- Alex Knaff at the Davis Cup (archived)
- Alex Knaff at ESPN.com
- Alex Knaff at the Luxembourg Olympic and Sporting Committee (in French)
- Alex Knaff at InterSportStats
Association of Tennis Professionals Top Luxembourg male singles tennis players | |
|---|---|
As of Sep 20, 2026 | |
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  | This biographical article relating to Luxembourgish tennis is a stub. You can help Wikipedia by adding missing information. |
Categories:
- 1997 births
- Living people
- Luxembourgian male tennis players
- Sportspeople from Luxembourg City
- Florida State Seminoles men's tennis players
- Expatriate tennis players in the United States
- Luxembourgian expatriate sportspeople in the United States
- 21st-century Luxembourgian sportsmen
- European tennis biography stubs
- Luxembourgian sportspeople stubs