| Challenger - Stanford | 08/14 05:00 | 25 | Alex Michelsen v Seongchan Hong | 4-6,6-2,6-0 | |
| Challenger - Cary | 08/10 21:45 | 26 | [206] Seong Chan Hong v Patrick Kypson [297] | 4-6,4-6 | |
| Challenger - Cary | 08/08 21:45 | 25 | [93] Alexander Shevchenko v Seong Chan Hong [206] | 6-3,3-6,6-7 | |
| Challenger - Lexington | 08/04 17:00 | 27 | [218] Tennys Sandgren v Seong Chan Hong [209] | 6-4,6-2 | |
| Challenger - Lexington | 08/02 17:30 | 26 | [333] Bernard Tomic v Seong Chan Hong [209] | 1-6,2-6 | |
| Challenger - Lexington | 07/31 20:00 | 25 | [320] Nam Hoang Ly v Seong Chan Hong [209] | 1-6,5-7 | |
| Wimbledon | 06/26 10:00 | 14 | [115] Yosuke Watanuki v Seong Chan Hong [197] | 7-6,7-6 | |
| Challenger - Ilkley | 06/17 10:00 | 14 | [160] Dennis Novak v Seong Chan Hong [190] | 6-4,3-6,6-3 | |
| Challenger - Nottingham | 06/13 10:00 | 25 | [190] Seong Chan Hong v Bu Yunchaokete [165] | 6-7,2-6 | |
| Challenger - Surbiton | 06/04 10:00 | 14 | [184] Seong Chan Hong v Jay Clarke [432] | 3-6,3-6 | |
| Challenger - Troisdorf | 05/31 11:00 | 26 | [261] Renzo Olivo v Seong Chan Hong [184] | 6-3,3-6,6-4 | |
| Challenger - Troisdorf | 05/29 15:30 | 25 | [184] Seong Chan Hong v Zsombor Piros [125] | 3-6,6-0,6-0 | |
| French Open | 05/22 08:00 | 14 | [184] Seong-Chen Hong v Matteo Gigante [204] | 5-7,4-6 | |
| Challenger - Busan | 05/09 03:30 | 25 | [319] Jason Jung v Seong Chan Hong [184] | Retired | |
| Challenger - Seoul | 04/28 02:00 | 27 | [194] Seong Chan Hong v Bu Yunchaokete [242] | 4-6,4-6 | |
| Challenger - Seoul | 04/27 02:00 | 26 | [89] Max Purcell v Seong Chan Hong [194] | 1-6,3-6 | |
| Challenger - Seoul | 04/26 04:55 | 25 | Seong Chan Hong v Tatsuma Ito | 6-3,6-2 | |
| Challenger - Tallahassee | 04/22 16:00 | 28 | [156] Zizou Bergs v Seong Chan Hong [200] | 6-2,6-1 | |
| Challenger - Tallahassee | 04/21 15:00 | 27 | [326] Moez Echargui v Seong Chan Hong [200] | 4-6,6-2,1-6 | |
| Challenger - Tallahassee | 04/19 18:15 | 26 | [200] Seong Chan Hong v Rio Noguchi [204] | 6-1,6-4 | |
| Challenger - Tallahassee | 04/17 20:00 | 25 | [472] Christian Harrison v Seong Chan Hong [200] | 3-6,1-6 | |
| Challenger - Sarasota | 04/13 17:05 | 26 | [70] Jason Kubler v Seong Chan Hong [209] | 6-3,6-4 | |
| Challenger - Sarasota | 04/12 18:30 | 25 | [209] Seong Chan Hong v Zachary Svajda [226] | 6-0,6-0 | |
| ATP - Houston | 04/01 21:10 | 14 | [207] Seong Chan Hong v Facundo D Acosta [163] | 2-6,3-6 | |
| Challenger - Mexico City | 03/27 22:45 | 25 | [162] Alejandro Tabilo v Seong Chan Hong [207] | 7-5,6-3 | |
| Challenger - Puerto Vallarta | 03/08 00:20 | 25 | [327] Ulises Blanch v Seong Chan Hong [207] | 6-3,6-3 | |
| Challenger Waco | 03/03 17:00 | 27 | [214] Seong-Chen Hong v Alexandre Muller [146] | 7-6,6-7,2-6 | |
| Challenger Waco | 03/01 16:30 | 26 | [214] Seong-Chen Hong v Nicolas Mejia [247] | 7-5,6-1 | |
| Challenger Waco | 02/28 16:00 | 25 | [150] Mattia Bellucci v Seong-Chen Hong [214] | 4-6,1-6 | |
| Challenger - Rome GA | 02/25 17:10 | 28 | [235] Seong Chan Hong v Alex Michelsen [466] | 6-4,5-7,1-6 |
Wikipedia - Hong Seong-chan
Hong Seong-chan (born 30 June 1997) is a South Korean tennis player. Hong has a career high ATP singles ranking of world No. 172 achieved on 15 April 2024 and a doubles ranking of No. 359 achieved on 16 January 2023. He is the current Korean No. 1 singles player.
Since 2015, Hong has been a member of the South Korean Davis Cup team.
History
Juniors
Hong reached the final of the 2015 Australian Open junior championships, falling to top seed Roman Safiullin in the final.
Hong had a career high junior ranking of No. 3.
2022: Maiden ATP Challenger title
He lifted his maiden trophy at the ATP 2022 Matsuyama Challenger.
2023-2024: Masters debut, Three Challenger finals
He reached the last round of qualifying at the 2023 Rolex Shanghai Masters.
Ranked No. 227, he qualified for the 2024 BNP Paribas Open having entered the qualifying competition as an alternate after Yosuke Watanuki‘s withdrawal, making his Masters debut.