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Alex Knaff (born 26 November 1997) is a Luxembourgish tennis player.
| Country (sports) |  Luxembourg |
|---|---|
| Born | 26 November 1997 Luxembourg City, Luxembourg |
| Height | 6 ft 4 in(193cm) |
| Plays | Right-handed (two-handed backhand) |
| College | Florida State |
| Coach | Gilles Müller |
| Prize money | $24,067 |
| Singles | |
| Career record | 2–6 (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) |
| Doubles | |
| Career record | 4–2 (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) |
| Last updated on: 30 October 2023. | |
Knaff has a career high ATP singles ranking of 486 achieved on 11 September 2023. He also has a career high ATP doubles ranking of 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]
Singles 4 (2–2)
|
|
| 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 |
Doubles 14 (7–7)
|
|
| 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 |
 Lukas Pokorny 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 |
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