| ITF Turkey F4 | 01/29 08:00 | 27 | Pascal Brunner v Seong Chan Hong | 1-6,2-6 | |
| ITF Turkey F4 | 01/28 08:00 | 26 | Roman Safiullin v Seong Chan Hong | 3-6,2-6 | |
| ITF Turkey F4 | 01/27 09:40 | 25 | Seong Chan Hong v Riccardo Bellotti | 6-1,6-4 | |
| ITF Qatar F6 | 12/16 12:00 | 26 | Scott Clayton v Seong Chan Hong | 4-6,6-3,6-3 | |
| ITF Qatar F6 | 12/15 11:30 | 25 | Seong Chan Hong v Haadin Bava | 7-6,6-3 | |
| ITF Qatar F5 | 12/12 13:00 | 29 | Seong Chan Hong v Joris De Loore | 3-6,2-6 | |
| ITF Qatar F5 | 12/11 12:00 | 28 | Seong Chan Hong v Luke Bambridge | 6-0,4-6,6-3 | |
| ITF Qatar F5 | 12/10 12:00 | 27 | Seong Chan Hong v Jonny O'Mara | 6-3,6-2 | |
| ITF Qatar F5 | 12/09 12:00 | 26 | Seong Chan Hong v Markos Kalovelonis | 6-2,6-3 | |
| ITF Qatar F5 | 12/08 09:30 | 25 | Alexander Ward v Seong Chan Hong | 2-6,6-4,4-6 | |
| ITF Qatar F4 | 12/03 12:00 | 27 | Seong Chan Hong v Luke Bambridge | 7-6,4-6,2-6 | |
| ITF Qatar F4 | 12/02 13:45 | 26 | Seong Chan Hong v Ameur Ben Hassen | 6-1,7-5 | |
| ITF Qatar F4 | 12/01 09:25 | 25 | Roberto Marcora v Seong Chan Hong | 4-6,2-6 | |
| Davis Cup | 07/19 05:50 | - | Temur Ismailov v Seong Chan Hong | 5-7,6-4,3-6 | |
| Davis Cup | 07/17 09:10 | - | Denis Istomin v Seong Chan Hong | 6-2,6-2,6-3 | |
| ITF Korea F1 | 05/20 03:20 | - | Daniel Nguyen v Seong Chan Hong | 4-6,6-4,6-1 | |
| ITF Japan F4 | 04/01 02:35 | - | Zhe Li v Seong Chan Hong | 2-6,6-4,7-5 | |
| ITF Japan F4 | 03/31 03:30 | - | Seong Chan Hong v Kittiphong Wachiramanowong | 6-1,6-3 | |
| ITF Japan F4 | 03/30 01:00 | - | Yuto Sakai v Seong Chan Hong | 1-6,0-6 | |
| ITF Japan F4 | 03/29 01:00 | - | Seong Chan Hong v Issei Okamura | 6-3,6-3 | |
| ITF Japan F3 | 03/26 01:00 | - | Seong Chan Hong v Yong-Kyu Lim | 2-6,6-4,4-6 | |
| ITF Japan F3 | 03/24 02:40 | - | Kento Takeuchi v Seong Chan Hong | 1-6,2-6 | |
| ITF Korea F1 Qual | 04/30 01:00 | - | Ji Sung Nam v Seong Chan Hong | 6-0,6-2 | |
| ITF Korea F1 Qual | 04/29 00:30 | - | Seong Chan Hong v Hong Chung | 0-6,3-6 |
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.