| Challenger Chennai | 02/13 08:20 | 25 | [245] Seong Chan Hong v Sebastian Ofner [155] | 6-4,6-3 | |
| Davis Cup | 02/05 06:50 | 45 | [237] Seong Chan Hong v Zizou Bergs [115] | 6-3,7-6 | |
| Davis Cup | 02/04 04:40 | 45 | [237] Seong Chan Hong v David Goffin [41] | 4-6,2-6 | |
| Challenger Nonthaburi | 01/21 03:30 | 28 | [261] Sho Shimabukuro v Seong Chan Hong [257] | 6-2,7-5 | |
| Challenger Nonthaburi | 01/20 03:30 | 27 | [252] Michael Geerts v Seong Chan Hong [257] | 1-6,5-7 | |
| Challenger Nonthaburi | 01/18 05:25 | 26 | [257] Seong Chan Hong v Nam Hoang Ly [247] | 6-2,7-6 | |
| Challenger Nonthaburi | 01/16 06:45 | 25 | Seong Chan Hong v Kasidit Samrej | 6-4,6-4 | |
| Challenger Noumea | 01/02 07:40 | 25 | [252] Seong Chan Hong v Thomas Fancutt [375] | 4-6,6-3,3-6 | |
| Challenger Matsuyama | 11/13 04:00 | 29 | [204] Tung-Lin Wu v Seong Chan Hong [371] | 3-6,2-6 | |
| Challenger Matsuyama | 11/12 03:10 | 28 | [355] Shintaro Mochizuki v Seong Chan Hong [371] | 1-6,6-2,3-6 | |
| Challenger Matsuyama | 11/11 03:05 | 27 | [422] Jason Jung v Seong Chan Hong [371] | 1-6,4-6 | |
| Challenger Matsuyama | 11/10 01:00 | 26 | [371] Seong Chan Hong v Nino Serdarusic [254] | 6-4,6-2 | |
| Challenger Matsuyama | 11/08 01:00 | 25 | [371] Seong Chan Hong v Mukund Sasikumar [349] | 6-2,6-1 | |
| Challenger Matsuyama | 11/07 01:00 | 19 | Seong Chan Hong v Shinji Hazawa | 6-3,6-4 | |
| Challenger Yokohama | 11/01 02:15 | 25 | [382] Seong Chan Hong v Kaichi Uchida [172] | 6-3,5-7,3-6 | |
| Challenger Yokohama | 10/31 01:30 | 19 | Seong Chan Hong v Keisuke Saitoh | 6-2,7-5 | |
| Challenger Busan | 10/22 06:00 | 28 | [470] Seong Chan Hong v Radu Albot [85] | 6-7,3-6 | |
| Challenger Busan | 10/21 06:45 | 27 | [135] John Millman v Seong Chan Hong [470] | 6-3,4-6,5-7 | |
| Challenger Busan | 10/20 02:00 | 26 | [470] Seong Chan Hong v Yunseong Chung [395] | 6-3,7-5 | |
| Challenger Busan | 10/18 04:25 | 25 | [470] Seong Chan Hong v Li Tu [190] | 6-3,3-6,6-1 | |
| Challenger Busan | 10/17 02:00 | 19 | [287] Max Purcell v Seong Chan Hong [472] | 7-6,6-0 | |
| Challenger Busan | 10/16 01:30 | 14 | Suk Ann v Seong Chan Hong | 2-6,2-6 | |
| Challenger Gwangju | 10/04 07:45 | 25 | [371] Mukund Sasikumar v Seong Chan Hong [467] | 4-6,6-1,7-5 | |
| ATP Seoul | 09/26 10:00 | 25 | [471] Seong Chan Hong v Kaichi Uchida [163] | 4-6,2-6 | |
| Davis Cup | 09/18 14:00 | 1 | [21] Roberto Bautista-Agut v Seong Chan Hong [467] | 6-1,6-3 | |
| Davis Cup | 09/15 14:00 | 1 | [467] Seong Chan Hong v Dusan Lajovic [92] | 4-6,0-6 | |
| Davis Cup | 09/13 14:00 | 1 | [467] Seong Chan Hong v Vasek Pospisil [141] | 6-4,1-6,6-7 | |
| Challenger Nonthaburi | 08/25 06:00 | 26 | [482] Seong-Chen Hong v Yasutaka Uchiyama [264] | 3-6,3-6 | |
| Challenger Nonthaburi | 08/23 06:05 | 25 | [334] Bu Yunchaokete v Seong-Chen Hong [482] | Retired | |
| Challenger Nonthaburi | 08/22 05:35 | 19 | [409] Tristan Schoolkate v Seong-Chen Hong [478] | 6-7,6-4,4-6 |
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.