Kasidit Samrej
Thai tennis player (born 2001)
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Kasidit Samrej (Thai: กษิดิศ สำเร็จ; born 26 January 2001) is a Thai tennis player. He has a career high ATP singles ranking of world No. 346 achieved on 25 August 2025. He also has a career high ATP doubles ranking of No. 822 achieved on 12 June 2023.[1] He is currently the No. 1 Thai player.[2]
Thailand| Country (sports) | Thailand | ||||||||||||||||||||||||||||||||
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| Born | 26 January 2001 Bangkok, Thailand | ||||||||||||||||||||||||||||||||
| Prize money | $60,274 | ||||||||||||||||||||||||||||||||
| Singles | |||||||||||||||||||||||||||||||||
| Career record | 3–9 (at ATP Tour level, Grand Slam level, and in Davis Cup) | ||||||||||||||||||||||||||||||||
| Career titles | 0 | ||||||||||||||||||||||||||||||||
| Highest ranking | No. 346 (25 August 2025) | ||||||||||||||||||||||||||||||||
| Current ranking | No. 346 (25 August 2025) | ||||||||||||||||||||||||||||||||
| Grand Slam singles results | |||||||||||||||||||||||||||||||||
| Australian Open | 1R (2025) | ||||||||||||||||||||||||||||||||
| Doubles | |||||||||||||||||||||||||||||||||
| Career record | 0–1 (at ATP Tour level, Grand Slam level, and in Davis Cup) | ||||||||||||||||||||||||||||||||
| Career titles | 0 | ||||||||||||||||||||||||||||||||
| Highest ranking | No. 822 (12 June 2023) | ||||||||||||||||||||||||||||||||
| Current ranking | No. 1118 (6 January 2025) | ||||||||||||||||||||||||||||||||
Medal record
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| Last updated on: 6 January 2025. | |||||||||||||||||||||||||||||||||
Samrej represents Thailand at the Davis Cup, where he has a W/L record of 10–8.[3][4]
Samrej won the Asia-Pacific Wildcard Playoff for the 2025 Australian Open,[5] making him the first Thai man to compete in the singles event in a Grand Slam tournament since Danai Udomchoke at the 2012 Australian Open.[6][7] He lost in the first round to fifth seed Daniil Medvedev in five sets.[8][9]
ATP Challenger and ITF World Tennis Tour finals
Singles: 12 (6–6)
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| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Win | 1–0 | Jun 2022 | M25 Chiang Rai, Thailand | World Tennis Tour | Hard |  Konstantin Kravchuk |
6–3, 7–6(7–3) |
| Loss | 1–1 | Jun 2023 | M25 Nakhon Si Thammarat, Thailand | World Tennis Tour | Hard |  Hiroki Moriya |
6–2, 2–6, 2–6 |
| Loss | 1–2 | Aug 2023 | M15 Nakhon Si Thammarat, Thailand | World Tennis Tour | Hard |  Grigoriy Lomakin |
6–7(2–7), 6–4, 3–6 |
| Win | 2–2 | Jul 2024 | M15 Nakhon Si Thammarat, Thailand | World Tennis Tour | Hard |  Mitsuki Wei Kang Leong |
6–4, 6–3 |
| Win | 3–2 | Jul 2024 | M15 Nakhon Si Thammarat, Thailand | World Tennis Tour | Hard | Pawit Sornlaksup |
6–3, 6–2 |
| Loss | 3–3 | Aug 2024 | M15 Nakhon Si Thammarat, Thailand | World Tennis Tour | Hard |  Ilia Simakin |
3–6, 4–6 |
| Win | 4–3 | Sep 2024 | M25 Nakhon Si Thammarat, Thailand | World Tennis Tour | Hard |  Sasikumar Mukund |
6–3, 6–3 |
| Loss | 4–4 | Jul 2025 | M15 Ma'anshan, China | World Tennis Tour | Hard | Koki Matsuda |
1–6, 6–7(7–9) |
| Loss | 4–5 | Jul 2025 | M15 Ma'anshan, China | World Tennis Tour | Hard |  Akira Santillan |
6–3, 3–6, 6–7(5–7) |
| Win | 5–5 | Aug 2025 | M15 Singapore, Singapore | World Tennis Tour | Hard (i) | Sora Fukuda |
6–1, 5–7, 6–2 |
| Win | 6–5 | Aug 2025 | M15 Singapore, Singapore | World Tennis Tour | Hard (i) | Koki Matsuda |
2–6, 7–5, 7–5 |
| Loss | 6–6 | May 2026 | M25 Nakhon Pathom, Thailand | World Tennis Tour | Hard |  Chung Hyeon |
4–6, 2–6 |
