Topzle Updated: Wikipedia source
Martin Damm Jr. (born September 30, 2003) is an American professional tennis player. He has a career-high ATP singles ranking of world No. 173 achieved on 3 November 2025 and a doubles ranking of No. 303 achieved on 6 November 2023.
| W | F | SF | QF | | RR | Q# | DNQ | A | NH |
| Tournament | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win% | ||||
| Grand Slam tournaments | |||||||||||
| Australian Open | A | A | A | A | 0 / 0 | 0–0 | – | ||||
| French Open | A | A | Q1 | A | 0 / 0 | 0–0 | – | ||||
| Wimbledon | A | A | A | A | 0 / 0 | 0–0 | – | ||||
| US Open | Q1 | Q2 | Q2 | 2R | 0 / 1 | 1–1 | 50% | ||||
| Win–loss | 0–0 | 0–0 | 0–0 | 1–1 | 0 / 1 | 1–1 | 50% | ||||
| ATP Masters 1000 | |||||||||||
| Indian Wells Masters | A | A | A | A | 0 / 0 | 0–0 | – | ||||
| Miami Open | Q1 | Q1 | 3R | Q1 | 0 / 1 | 2–1 | 67% | ||||
| Monte Carlo Masters | A | A | A | A | 0 / 0 | 0–0 | – | ||||
| Madrid Open | A | A | A | A | 0 / 0 | 0-0 | – | ||||
| Italian Open | A | A | A | A | 0 / 0 | 0–0 | – | ||||
| Canadian Open | A | A | A | A | 0 / 0 | 0–0 | – | ||||
| Cincinnati Masters | A | A | A | A | 0 / 0 | 0–0 | – | ||||
| Shanghai Masters | NH | A | A | A | 0 / 0 | 0–0 | – | ||||
| Paris Masters | A | A | A | A | 0 / 0 | 0–0 | – | ||||
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0 / 1 | 2–1 | 67% | ||||
| Legend |
| ATP Challenger Tour (0–4) |
| ITF WTT (7–7) |
| Finals by surface |
| Hard (7–8) |
| Clay (0–3) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Jan 2024 | Oeiras Indoors, Portugal | Challenger | Hard (i) | Leandro Riedi | 6–7(6–8), 2–6 |
| Loss | 0–2 | Sep 2025 | Columbus Challenger, US | Challenger | Hard (i) | Michael Zheng | 6–3, 3–6, 5–7 |
| Loss | 0–3 | Oct 2025 | Lincoln Challenger, US | Challenger | Hard (i) | Rafael Jódar | 7–6(7–3), 3–6, 3–6 |
| Loss | 0–4 | Oct 2025 | Charlottesville Men's Pro Challenger, US | Challenger | Hard (i) | Rafael Jódar | 3–6, 6–7(2–7) |
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Nov 2019 | M25 Naples, US | WTT | Clay | Tomás Martín Etcheverry | 6–7(4–7), 5–7 |
| Loss | 0–2 | Mar 2021 | M15 Rovinj, Croatia | WTT | Clay | Corentin Denolly | 6–3, 5–7, 0–6 |
| Win | 1–2 | Sep 2021 | M15 Champaign, US | WTT | Hard | Gabi Adrian Boitan | 6–3, 3–6, 6–2 |
| Loss | 1–3 | May 2022 | M25 Jablonec nad Nisou, Czech Republic | WTT | Clay | Khumoyun Sultanov | 7–6(12–10), 6–7(5–7), 3–6 |
| Win | 2–3 | Jun 2022 | M25 Santo Domingo, Dominican Republic | WTT | Hard | Dan Added | 6–3, 6–3 |
| Win | 3–3 | Oct 2022 | M25 Harlingen, US | WTT | Hard | Bernard Tomic | 6–7(4–7), 6–3, 6–4 |
| Win | 4–3 | Jun 2023 | M25 Santo Domingo, Dominican Republic | WTT | Hard | Liam Draxl | 7–6(7–5), 6–4 |
| Loss | 4–4 | Aug 2023 | M25 Southaven, US | WTT | Hard | Chris Rodesch | 7–6(7–3), 1–6, 3–6 |
| Win | 5–4 | Sep 2023 | M25 Setúbal, Portugal | WTT | Hard | Dali Blanch | 7–6(7–5), 3–6, 6–3 |
| Win | 6–4 | Feb 2025 | M15 Sharm El Sheikh, Egypt | WTT | Hard | Alexandr Binda | 6–3, 3–6, 6–2 |
| Loss | 6–5 | Feb 2025 | M15 Sharm El Sheikh, Egypt | WTT | Hard | Federico Cinà | 6–7(3–7), 6–7(3–7) |
| Loss | 6–6 | May 2025 | M25 Tbilisi, Georgia | WTT | Hard | Ryan Peniston | 2–6, 6–3, 1–6 |
| Loss | 6–7 | Jun 2025 | M15 Vaasa, Finland | WTT | Hard | Millen Hurrion | 7–5, 4–6, 5–7 |
| Win | 7–7 | Jun 2025 | M25 Elvas, Portugal | WTT | Hard | Dan Added | 6–3, 6–2 |
| Legend |
| ATP Challenger Tour (0–1) |
| ITF WTT (6–2) |
| Finals by surface |
| Hard (2–1) |
| Clay (4–2) |
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Nov 2022 | Knoxville Challenger, US | Challenger | Hard (i) | Mitchell Krueger | Hunter Reese Tennys Sandgren | 7–6(7–4), 6–7(3–7), [5–10] |
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | Feb 2020 | M25 Naples, US | WTT | Clay | Toby Kodat | Nicolás Barrientos Cristian Rodríguez | 4–6, 6–4, [10–7] |
| Loss | 1–1 | Mar 2020 | M15 Antalya, Turkey | WTT | Clay | Tristan Boyer | Peter Heller Peter Torebko | 5–7, 2–6 |
| Win | 2–1 | Mar 2021 | M15 Opatija, Croatia | WTT | Clay | Alex Rybakov | Alen Rogic Hadzalic Matic Špec | 7–6(7–4), 4–6, [10–7] |
| Win | 3–1 | May 2021 | M15 Valldoreix, Spain | WTT | Clay | Alex Rybakov | Francisco Cabral Gonçalo Falcão | 6–4, 7–6(7–4) |
| Win | 4–1 | May 2021 | M15 Skopje, North Macedonia | WTT | Clay | Robin Stanek | Max Houkes Sidane Pontjodikromo | 6–2, 7–6(7–5) |
| Win | 5–1 | Oct 2021 | M25 Rodez, France | WTT | Hard (i) | Felix Corwin | Gijs Brouwer Jelle Sels | 3–6, 7–5, [10–7] |
| Loss | 5–2 | May 2023 | M25 Prague, Czech Republic | WTT | Clay | Alex Rybakov | Stuart Parker Jakub Paul | 6–3, 3–6, [6–10] |
| Win | 6–2 | Sep 2023 | M25 Sintra, Portugal | WTT | Hard | Dali Blanch | Jaime Faria Henrique Rocha | 6–1, 6–2 |