Ryan Seggerman (born August 6, 1999) is an American tennis player. He has a career-high ATP doubles ranking of world No. 60 achieved on September 28, 2026, and a singles ranking of No. 348 achieved on August 26, 2024.
College career Seggerman played college tennis at Princeton before transferring to North Carolina.
Professional career 2023: Eight straight ITF doubles titles Seggerman won his first ITF singles title in 2023 at the M25 Monastir tournament, defeating Ilia Simakin in the final. With fellow American Patrik Trhac, the duo won eight consecutive ITF doubles titles between July and October 2023.
The pair won their first ATP Challenger doubles title at the 2023 City of Playford Tennis International, and then won the 2023 NSW Open title the following week.
2024: ATP Tour and Grand Slam debuts
Singles Seggerman reached the semifinals as a qualifier at both the 2024 Macedonian Open and at the 2024 Cranbrook Tennis Classic.
Seggerman reached the main draw as a qualifier at the 2024 Lexington Challenger, rising into the top 400 for the first time on 5 August 2024. He reached the quarterfinals of the RD Open, giving him a new career-high ranking of No. 350 on 19 August 2024. Seggerman received entry into the 2024 Winston-Salem Open qualifying singles draw, but lost in the first round.
Doubles In January 2024, following back to back Challenger titles in 2024 Indian Wells, Seggerman and Trhac received a wildcard for the Masters 1000 2024 BNP Paribas Open, making their ATP debut. The pair defeated sixth-seeded Máximo González and Andrés Molteni in the first round. In the round of 16, they lost to eventual champions Wesley Koolhof and Nikola Mektić.
After 13 straight victories in ITF circuit and ATP Challenger Tour finals, the pair lost their first final at the 2024 Upper Austria Open. With Trhac, the pair received entry into the 2024 Libéma Open, their second tour-level event. As a result, Seggerman reached the top 100 in doubles on 24 June 2024.
With Trhac, the duo won the 2024 Cranbrook Tennis Classic, their seventh Challenger level title. As a result, Seggerman rose to a new career high doubles ranking of No. 89 on 15 July 2024.
Seggerman and Trhac received a wildcard to the 2024 US Open, making their Grand Slam debut but lost in the first round to Yuki Bhambri and Albano Olivetti.
Seggerman and Szymon Walków reached the final at the 2024 Szczecin Open. This gave Seggerman a new career high doubles ranking of world No. 87 on 16 September 2024.
2025: Tenth Challenger title with Trhac, Top 75 Seggerman began his 2025 campaign with a doubles title at the 2025 Canberra challenger, partnering countryman Eliot Spizzirri. The pair saved a championship point in their title match win over Pierre-Hugues Herbert and Jérôme Kym.
Seggerman made his Australian Open debut in the doubles tournament alongside Rithvik Choudary Bollipalli. The duo lost in straight sets to eventual champions Harri Heliövaara and Henry Patten.
Following the Australian Open, Seggerman partnered with John-Patrick Smith and they lost in the qualifying final in Dallas, the first round in Delray Beach, and the first qualifying round in Rio de Janeiro. They picked up their first two wins together at the 2025 Chile Open, reaching the semifinals before losing to top-seeded Máximo González and Andrés Molteni. As a result, Seggerman reached a career-high doubles ranking of No. 71 on 3 March 2025.
At the 2025 BNP Paribas Open, Seggerman rejoined Trhac at the same tournament where they won their first ATP match a year prior. The pair received entry as alternates, and defeated a team of top-20 singles players, Karen Khachanov and Andrey Rublev 6–2, 6(4)–7, [10–7].
At the 2025 Serve First Open, Trhac and Seggerman won their 10th Challenger doubles title together, defeating Sriram Balaji and Rithvik Choudary Bollipalli in the final.
ATP Tour finals
Doubles: 2 (1 title, 1 runner-up) ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss0–1Feb 2026Delray Beach Open,United StatesATP 250Hard Benjamin Kittay Austin Krajicek Nikola Mektić7–6(7–3), 3–6, [9–11]Win1–1Los Cabos Open,MexicoATP 250Hard Patrik Trhac Finn Reynolds James Watt7–6(7–4), 6–7(5–7), [10–8]
ATP Challenger and ITF Tour finals
Singles: 1 (1 title) LegendITF WTT (1–0)
ResultW–LDateTournamentTierSurfaceOpponentScoreWin1–0M25 Monastir, TunisiaWTTHard Ilia Simakin7–5, 6–4
Doubles: 37 (26 titles, 11 runner-ups) LegendATP Challenger Tour (18–10)ITF Futures/WTT (8–1)Finals by surfaceHard (18–4)Clay (8–7)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreWin1–0Playford International, AustraliaChallengerHard Patrik Trhac Blake Ellis Tristan Schoolkate6–3, 7–6(7–3)Win2–0Sydney International, AustraliaChallengerHard Patrik Trhac Ruben Gonzales Nam Ji-sung6–4, 6–4Win3–0Southern California Open, USChallengerHard Patrik Trhac Thai-Son Kwiatkowski Alex Lawson6–2, 7–6(7–3)Win4–0Southern California Open, US (2)ChallengerHard Patrik Trhac Thomas Fancutt Ajeet Rai6–4, 3–6, [10–3]Win5–0Mexico City Open, MexicoChallengerClay Patrik Trhac Tristan Schoolkate Adam Walton5–7, 6–4, [10–5]Loss5–1Danube Upper Austria OpenChallengerClay Patrik Trhac Constantin Frantzen Hendrik Jebens4–6, 4–6Win6–1Macedonian OpenChallengerClay Patrik Trhac Andrew Paulson Patrik Rikl6–3, 7–6(7–4)Loss6–2Emilia-Romagna Open, ItalyChallengerClay Patrik Trhac Marco Bortolotti Matthew Romios6–7(7–9), 6–2, [9–11]Win7–2Cranbrook Tennis Classic, USChallengerHard Patrik Trhac Ozan Baris Nishesh Basavareddy4–6, 6–3, [10–6]Loss7–3Szczecin Open, PolandChallengerClay Szymon Walków Guido Andreozzi Théo Arribagé2–6, 1–6Win8–3Fairfield Challenger, USChallengerHard Patrik Trhac Gabi Adrian Boitan Bruno Kuzuhara6–2, 3–6, [10–5]Win9–3 Calgary, CanadaChallengerHard Patrik Trhac Robert Cash JJ Tracy6–3, 7–6(7–3)Loss9–4Sioux Falls Challenger, USChallengerHard (i) Patrik Trhac Liam Draxl Cleeve Harper5–7, 3–6Loss9–5Puerto Vallarta Open, MexicoChallengerHard Karl Poling Liam Draxl Benjamin Sigouin6–7(5–7), 2–6Win10–5Canberra International, AustraliaChallengerHard Eliot Spizzirri Pierre-Hugues Herbert Jérôme Kym1–6, 7–5, [10–5]Loss10–6Mexico City OpenChallengerClay Patrik Trhac Santiago González Austin Krajicek6–7(9–11), 6–3, [5–10]Loss10–7Danube Upper Austria OpenChallengerClay David Stevenson Nico Hipfl Jérôme Kym5–7, 6–3, [2–10]Win11–7Jun 2025 Emilia-Romagna Open, Italy Challenger Clay Matthew Romios Alexander Erler Constantin Frantzen7–6(7–4), 3–6, [10–7]Win12–7Jun 2025 Aspria Tennis Cup, Italy ChallengerClay Matthew Romios George Goldhoff Ray Ho3–6, 7–5, [10–8]Loss12–8Jul 2025 Iași Open, Romania ChallengerClay Cleeve Harper Szymon Kielan Filip Pieczonka5–7, 3–6Win13–8Aug 2025 Chicago Men's Challenger, US ChallengerHard Mac Kiger Theodore Winegar Michael Zheng6–4, 3–6, [10–5]Win14–8Aug 2025 Serve First Open, Sumter, US ChallengerHard Patrik Trhac N Sriram Balaji Rithvik Choudary Bollipalli6–4, 7–6(7–3)Win15–8Sep 2025 Guangzhou, China ChallengerHard Matthew Romios Seita Watanabe Kaito Uesugi6–1, 6–3Loss15–9Nov 2025 Champaign Challenger, US ChallengerHard (i) Keegan Smith Patrick Harper Shunsuke Mitsui5–7, 7–6(7–3), [10–12]Win16–9Apr 2026 Mexico City, Mexico ChallengerClay Santiago González Diego Hidalgo Patrik Trhac6–4, 4–6, [10–8]Win17–9Francavilla al Mare, ItalyChallengerClay Benjamin Kittay Arthur Reymond Luca Sanchez6–4, 7–6(7–3)Loss17–10Perugia, ItalyChallengerClay Theodore Winegar Sander Gillé Sem Verbeek6–7(3–7), 6–4, [6–10]Win18–10Parma, ItalyChallengerClay Jakub Paul Pruchya Isaro Niki Kaliyanda Poonacha6–2, 7–6(7–5)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss0–1US F29, IrvineFuturesHard Timothy Sah Mackenzie McDonald Deiton Baughman4–6, 3–6Win1–1M15 Lakewood, USWTTHard Patrik Trhac Alfredo Perez Jamie Vance6–2, 6–4Win2–1M15 Lakewood, USWTTHard Patrik Trhac Jack Anthrop Bryce Nakashima7–5, 6–2Win3–1M25 Southaven, USWTTHard Patrik Trhac Patrick Harper Shunsuke Mitsui6–4, 6–3Win4–1M15 Monastir, TunisiaWTTHard Patrik Trhac Luca Fantini Younes Lalami Laaroussi6–1, 6–3Win5–1M15 Monastir, TunisiaWTTHard Patrik Trhac Lukáš Pokorný Kris van Wyk6–4, 7–5Win6–1M15 Monastir, TunisiaWTTHard Patrik Trhac Chirag Duhan Garrett Johns6–1, 6–3Win7–1M25 Monastir, TunisiaWTTHard Patrik Trhac Thomas Braithwaite Timothy Gray7–5, 6–4Win8–1M25 Zapopan, MexicoWTTClay Patrik Trhac Miguel Ángel Cabrera João Vitor G. Ceolin6–2, 6–4
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