Sam Riffice (born 1 March 1999) is an American tennis player. He has a career high ATP singles ranking of world No. 487 achieved on October 17, 2022 and a career high doubles ranking of No. 606 achieved on May 27, 2019.
Early life and career His mother, Lori Riffice, is a national coach with USTA Player Development. The family relocated to Central Florida to be a part of the USTA National Campus staff when it first opened in January 2017.
Whilst studying at the University of Florida Riffice won the 2021 SEC championship. Riffice then won the 2021 NCAA Singles Tournament at the USTA National Campus where as the No. 6-seed Riffice defeated No. 2-seeded Daniel Rodrigues of South Carolina by a score of 3–6, 6–1, 6–4 in the final. He was also captain of the Florida Gators as they won the 2021 NCAA team title.
Career Riffice was given his ATP tour debut as a wildcard at the 2021 US Open, where he lost in the first round to 15th seed Grigor Dimitrov.
Personal life Riffice graduated from University of Florida in 2022 with a degree in political science. He is currently enrolled in University of Florida's Levin College of Law. He was named to the Intercollegiate Tennis Association Board of Directors as a Special Advisor in July 2025.
ATP Challenger and ITF Futures finals Singles: 6 (2–4) LegendATP Challenger (0–0)ITF Futures (2–4)Finals by surfaceHard (2–2)Clay (0–2)Grass (0–0)Carpet (0–0)
ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1USA F15, Vero BeachFuturesClay Calvin Hemery3–6, 1–6Loss0–2Romania F1, BucharestFuturesClay Nicolae Frunză3–6, 3–6Loss0–3USA F17, TulsaFuturesHard Marc-Andrea Hüsler4–6, 2–6Win1–3M25 Wichita, USAWorld Tennis TourHard Brandon Holt6–1, 6–4Loss1–4M25 Tulsa, USAWorld Tennis TourHard Maxime Cressy3–6, 1–6Win2–4M15 Fayetteville, USAWorld Tennis TourHard Blu Baker5–1 ret.
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