Ilia Simakin (born 27 October 2003) is a Russian professional tennis player. He has a career-high ATP singles ranking of No. 151 achieved on 21 September 2026 and a best doubles ranking of No. 230 achieved on 19 May 2025.
Career In the summer of 2026, Simakin won 19 of his past 20 matches, including Challenger title runs in Zhangjiagang and back to back titles in Phan Thiet, Vietnam. As a result he reached a career-high No. 151 in the ATP rankings on 21 September 2026.
ATP Challenger Tour Finals
Singles: 8 (4 titles, 4 runner-ups) LegendATP Challenger Tour (4–4)Finals by surfaceHard (4–4)
ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1Moldova Open, MoldovaChallengerHard Clément Chidekh6–7(6–8), 5–7Loss0–2Manama Challenger, BahrainChallengerHard Toby Samuel0–6, 2–6Loss0–3Phan Thiết Challenger, VietnamChallengerHard Kwon Soon-woo2–6, 6–7(5–7)Win1–3Phan Thiết Challenger II, VietnamChallengerHard Zhou Yi7–5, 6–4Loss1–4ENKA Open, TurkeyChallengerHard Lucas Poullain7–5, 2–6, 3–6Win2–4International Challenger Zhangjiagang, ChinaChallengerHard Kasidit Samrej6–3, 6–1Win3–4Phan Thiết Challenger III, VietnamChallengerHard Arthur Weber6–4, 7–6(7–5)Win4–4Phan Thiết Challenger IV, VietnamChallengerHard Rodrigo Pacheco Méndez6–7(4–7), 6–4, 6–3
Doubles: 5 (1 title, 4 runner-ups) LegendATP Challenger Tour (1–4)Finals by surfaceHard (1–4)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreWin1–0President's Cup, KazakhstanChallengerHard Egor Agafonov Denis Istomin Evgeny Karlovskiy6–4, 6–3Loss1–1Crete Challenger II, GreeceChallengerHard Kelsey Stevenson Stefanos Sakellaridis Petros Tsitsipas2–6, 2–6Loss1–2Moldova Open, MoldovaChallengerHard Lukáš Pokorný Szymon Kielan Filip Pieczonka4–6, 0–6Loss1–3Manama Challenger, BahrainChallengerHard Egor Agafonov Petr Bar Biryukov Alexandr Binda5–7, 1–6Loss1–4ENKA Open, TurkeyChallengerHard Sergey Betov Arda Azkara James MacKinlay3–6, 1–6
ITF World Tennis Tour finals
Singles: 10 (6 titles, 4 runner-ups) LegendITF WTT (6–4)Finals by surfaceHard (6–4)Clay (–)
ResultW–LDateTournamentTierSurfaceOpponentScoreWin1–0M15 Sharm El-Sheikh, EgyptWTTHard Lukáš Pokorný7–6(7–2), 2–6, 6–3Loss1–1M15 Sharm El-Sheikh, EgyptWTTHard Mohamed Safwat4–6, 0–6Loss1–2M25 Monastir, TunisiaWTTHard Ryan Seggerman 5–7, 4–6Win2–2M15 Aktobe, KazakhstanWTTHard Egor Agafonov 6–1, 6–1Win3–2M15 Tbilisi, GeorgiaWTTHard Erik Arutiunian6–3, 6–3Win4–2M15 Monastir, TunisiaWTTClay Mili Poljičak6–7(4–7), 6–1, 6–3Win5–2M15 Nakhon Si Thammarat, ThailandWTTHard Kasidit Samrej6–3, 6–4Win6–2M15 Sharm El Sheikh, EgyptWTTHard Marek Gengel7–5, 6–3Loss6–3M15 Sharm El Sheikh, EgyptWTTHard Marek Gengel4–6, 0–6Loss6–4M15 Sharm El Sheikh, EgyptWTTHard Marek Gengel1–6, 1–6
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