Martin Damm (born 2003)

Martin Damm
Damm at the 2023 US Open
Full nameMartin Damm Jr.
Country (sports) United States
Born (2003-09-30) September 30, 2003 (age 23)
Bradenton, Florida, United States
Height6 ft 8 in (2.03 m)
Turned pro2020
PlaysLeft-handed (two-handed backhand)
CoachMartin Damm, Micah Klousia
Prize moneyUS $1,138,324
Singles
Career record12–14 (at ATP Tour level, Grand Slam level, and in Davis Cup)
Career titles0
Highest rankingNo. 90 (August 31, 2026)
Current rankingNo. 90 (August 31, 2026)
Grand Slam singles results
Australian Open1R (2026)
French OpenQ1 (2024, 2026)
Wimbledon2R (2026)
US Open2R (2025)
Doubles
Career record1–3 (at ATP Tour level, Grand Slam level, and in Davis Cup)
Career titles0
Highest rankingNo. 303 (November 6, 2023)
Current rankingNo. 356 (August 31, 2026)
Grand Slam doubles results
US Open2R (2019)
Last updated on: August 31, 2026.

Martin Damm Jr. (born September 30, 2003) is an American professional tennis player. He has a career-high ATP singles ranking of world No. 90 achieved on August 31, 2026 and a doubles ranking of No. 303 achieved on November 6, 2023.

Career

2019–2021: Juniors

On the junior tour, Damm has a career high junior ranking of No. 3, achieved on January 1, 2021.

In August 2019, Damm and his partner Toby Kodat won the USTA Boys 18s National Championships doubles title, earning the pair a wildcard entry into the doubles main draw of the 2019 US Open. Damm age 15 and fellow American Toby Kodat age 16 became the youngest men's doubles team to win a US Open match in the Open Era.

2022–2023: Major, Masters qualifying debuts

Damm received a wildcard into the qualifying draw of the 2022 Miami Open and the 2022 US Open.

He also entered the qualifying competitions at the 2023 Miami Open, and at the 2023 US Open as a wildcard.

2024: Masters debut & first wins, top 175

In March, Damm was also awarded a main draw wildcard at the 2024 Miami Open for his Masters debut where he recorded his first ATP Tour and Masters level win over Zhizhen Zhang and 14th seed and compatriot Tommy Paul by retirement. As a result, he reached the top 175 in the rankings on 1 April 2024.

2025: Major debut and first win

Ranked No. 431, Damm made his debut at the 2025 US Open, after making the main draw using a qualifying wildcard, and recorded his first major win over fellow American and wildcard Darwin Blanch.

2026: Wimbledon first win, ATP semifinal, top 100

Martin Damm practicing at the US Open in 2026

Damm qualified for the main draw at the ATP 250 2026 Open Occitanie and upset seventh seed Hubert Hurkacz, and Roberto Bautista Agut in straight sets. He then downed Luca Nardi in the last eight to advance to his first ATP tour-level semifinal. As a result he reached a new career-high of No. 130 in the singles rankings, raising up 30 places, on 9 February 2025.

Damm reached the top 100 in the singles rankings on 3 August 2026, following qualifying for the Mubadala Washington Open.

Damm earned his first top-10 win by defeating Daniil Medvedev at the Winston-Salem Open.

Personal life

Damm is the son of Czech former professional tennis player Martin Sr., who reached world No. 5 in doubles. He has two other siblings. During the COVID-19 pandemic Damm obtained Czech citizenship. He is fluent in both Czech and English. Damm is a fan of the Czech soccer club AC Sparta Prague.

Performance timeline

Key
W  F  SF QF #R RRQ# DNQ A NH
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.

Singles

Tournament20222023202420252026SRW–LWin%
Grand Slam tournaments
Australian Open A A A A 1R 0 / 1 0–1 0%
French Open A A Q1 A Q1 0 / 0 0–0  – 
Wimbledon A A A A 2R 0 / 1 1–1 50%
US Open Q1 Q2 Q2 2R 0 / 1 1–1 50%
Win–loss 0–0 0–0 0–0 1–1 1–2 0 / 3 2–3 40%
ATP Masters 1000
Indian Wells Open A A A A 1R 0 / 1 0–1 0%
Miami Open Q1 Q1 3R Q1 2R 0 / 2 3–2 60%
Monte-Carlo Masters A A A A A 0 / 0 0–0  – 
Madrid Open A A A A 2R 0 / 1 1–1 50%
Italian Open A A A A Q1 0 / 0 0–0  – 
Canadian Open A A A A 1R 0 / 1 0–1 0%
Cincinnati Open A A A A Q1 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 2–1 0–0 2–4 0 / 5 4–5 44%

ATP Challenger and ITF Tour finals

Singles: 19 (7 titles, 12 runner-ups)

Legend
ATP Challenger Tour (0–5)
ITF WTT (7–7)
Finals by surface
Hard (7–9)
Clay (0–3)
Result W–L    Date    Tournament Tier Surface Opponent Score
Loss 0–1 Jan 2024 Oeiras Indoors, Portugal Challenger Hard (i) Switzerland Leandro Riedi 6–7(6–8), 2–6
Loss 0–2 Sep 2025 Columbus Challenger, US Challenger Hard (i) United States Michael Zheng 6–3, 3–6, 5–7
Loss 0–3 Oct 2025 Lincoln Challenger, US Challenger Hard (i) Spain Rafael Jódar 7–6(7–3), 3–6, 3–6
Loss 0–4 Oct 2025 Charlottesville Men's Pro Challenger, US Challenger Hard (i) Spain Rafael Jódar 3–6, 6–7(2–7)
Loss 0–5 Oct 2026 Brest Challenger, France Challenger Hard (i) France Moïse Kouamé 4–6, 7–6(7–5), 6–7(4–7)
Result W–L    Date    Tournament Tier Surface Opponent Score
Loss 0–1 Nov 2019 M25 Naples, US WTT Clay Argentina Tomás Martín Etcheverry 6–7(4–7), 5–7
Loss 0–2 Mar 2021 M15 Rovinj, Croatia WTT Clay France Corentin Denolly 6–3, 5–7, 0–6
Win 1–2 Sep 2021 M15 Champaign, US WTT Hard Romania Gabi Adrian Boitan 6–3, 3–6, 6–2
Loss 1–3 May 2022 M25 Jablonec nad Nisou, Czech Republic WTT Clay Uzbekistan Khumoyun Sultanov 7–6(12–10), 6–7(5–7), 3–6
Win 2–3 Jun 2022 M25 Santo Domingo, Dominican Republic WTT Hard France Dan Added 6–3, 6–3
Win 3–3 Oct 2022 M25 Harlingen, US WTT Hard Australia Bernard Tomic 6–7(4–7), 6–3, 6–4
Win 4–3 Jun 2023 M25 Santo Domingo, Dominican Republic WTT Hard Canada Liam Draxl 7–6(7–5), 6–4
Loss 4–4 Aug 2023 M25 Southaven, US WTT Hard Luxembourg Chris Rodesch 7–6(7–3), 1–6, 3–6
Win 5–4 Sep 2023 M25 Setúbal, Portugal WTT Hard United States Dali Blanch 7–6(7–5), 3–6, 6–3
Win 6–4 Feb 2025 M15 Sharm El Sheikh, Egypt WTT Hard Italy Alexandr Binda 6–3, 3–6, 6–2
Loss 6–5 Feb 2025 M15 Sharm El Sheikh, Egypt WTT Hard Italy Federico Cinà 6–7(3–7), 6–7(3–7)
Loss 6–6 May 2025 M25 Tbilisi, Georgia WTT Hard United Kingdom Ryan Peniston 2–6, 6–3, 1–6
Loss 6–7 Jun 2025 M15 Vaasa, Finland WTT Hard United Kingdom Millen Hurrion 7–5, 4–6, 5–7
Win 7–7 Jun 2025 M25 Elvas, Portugal WTT Hard France Dan Added 6–3, 6–2

Doubles: 10 (7 titles, 3 runner-ups)

Legend
ATP Challenger Tour (1–1)
ITF WTT (6–2)
Finals by surface
Hard (2–1)
Clay (5–2)
Result W–L Date Tournament Tier Surface Partner Opponents Score
Loss 0–1 Nov 2022 Knoxville Challenger, US Challenger Hard (i) United States Mitchell Krueger United States Hunter Reese
United States Tennys Sandgren		 7–6(7–4), 6–7(3–7), [5–10]
Win 1–1 Apr 2026 Sarasota Open, US Challenger Clay Czech Republic Hynek Bartoň United States Garrett Johns
United States Theodore Winegar		 6–2, 6–1
Result W–L Date Tournament Tier Surface Partner Opponents Score
Win 1–0 Feb 2020 M25 Naples, US WTT Clay United States Toby Kodat Colombia Nicolás Barrientos
Colombia Cristian Rodríguez		 4–6, 6–4, [10–7]
Loss 1–1 Mar 2020 M15 Antalya, Turkey WTT Clay United States Tristan Boyer Germany Peter Heller
Germany Peter Torebko		 5–7, 2–6
Win 2–1 Mar 2021 M15 Opatija, Croatia WTT Clay United States Alex Rybakov Croatia Alen Rogic Hadzalic
Slovenia Matic Špec		 7–6(7–4), 4–6, [10–7]
Win 3–1 May 2021 M15 Valldoreix, Spain WTT Clay United States Alex Rybakov Portugal Francisco Cabral
Portugal Gonçalo Falcão		 6–4, 7–6(7–4)
Win 4–1 May 2021 M15 Skopje, North Macedonia WTT Clay Czech Republic Robin Stanek Netherlands Max Houkes
Netherlands Sidane Pontjodikromo		 6–2, 7–6(7–5)
Win 5–1 Oct 2021 M25 Rodez, France WTT Hard (i) United States Felix Corwin Netherlands Gijs Brouwer
Netherlands Jelle Sels		 3–6, 7–5, [10–7]
Loss 5–2 May 2023 M25 Prague, Czech Republic WTT Clay United States Alex Rybakov United Kingdom Stuart Parker
Switzerland Jakub Paul		 6–3, 3–6, [6–10]
Win 6–2 Sep 2023 M25 Sintra, Portugal WTT Hard United States Dali Blanch Portugal Jaime Faria
Portugal Henrique Rocha		 6–1, 6–2

Wins against top-10 players

Season2026Total
Wins11
# Player Rk Event Surface Rd Score Rk Ref
2026
1. Daniil Medvedev 8 Winston-Salem Open, United States Hard 2R 7–5, 6–3 92
*As of 26 August 2026

References

  1. ↑ Profile, imgacademy.com. Accessed 2 February 2024.
  2. ↑ Martin Damm Juniors Singles Overview
  3. ↑ "Florida's Bernard, Damm/Kodat Win Titles at USTA National Boys' Hard Courts". www.ustaflorida.com. August 16, 2019.
  4. ↑ "Damm, Kodat earn US Open berth, win USTA Boys Nationals 18-year-old doubles title". wwmt.com. August 10, 2019.
  5. 1 2 "Martin Damm's Difficult Journey To The Best Tennis Moment Of His Life At The 2025 U.S. Open". August 26, 2025.
  6. ↑ "There's a new Martin Damm in tennis". September 2, 2019.
  7. ↑ "Martin Damm and Toby Kodat make US Open history". August 30, 2019.
  8. ↑ "Full List of Wild Card Entries Announced for 2023 Miami Open Presented by Itaú". March 14, 2023.
  9. ↑ "Shang Juncheng, Dominic Thiem Among Miami Wild Cards | ATP Tour | Tennis". March 14, 2023.
  10. ↑ "John Isner joins talented teenagers among 2023 US Open men's wild cards".
  11. ↑ "Tennis Channel". x.com. March 20, 2024. Retrieved October 17, 2025.
  12. ↑ "Inside the rise of Martin Damm". March 23, 2024.
  13. ↑ "Damm advances after Paul suffers injury in Miami". March 23, 2024.
  14. ↑ "Auger-Aliassime fights off French qualifier Droguet, returns to Montpellier final". atptour. February 7, 2026.
  15. ↑ "No Shortcuts– From Qualifiers to the Main Draw: Martin Damm Jr.'s Next Step Arrives in Washington D.C." July 27, 2026.
  16. ↑ "Wong, Gea & Damm make Top 100 debuts". ATPTour. August 3, 2026.
  17. ↑ "Damm upsets Medvedev for 'best win of my life' in Winston-Salem". atpworldtour.com. ATP. August 26, 2026. Retrieved August 26, 2026.
  18. ↑ Pratt, Steve (March 30, 2019). "Mark Mandlik to Meet Martin Damm In Boys' ITF 18s Semifinals". USTA. Retrieved September 16, 2026.
  19. ↑ Jaroch, Jan (September 16, 2026). "Mluví česky, fandí Spartě, ale hraje za USA. Bylo to výhodnější, říká Martin Damm Jr". iSport.cz (in Czech). Czech News Center. Retrieved September 16, 2026.
  20. ↑ "Tennis Top 10 wins". tennisabstract.com. Retrieved March 9, 2026.
  21. ↑ "Damm upsets Medvedev for 'best win of my life' in Winston-Salem". ATP Tour. Retrieved August 26, 2026.