| Challenger Waco | 02/28 16:00 | 25 | [150] Mattia Bellucci v Hong, Seong Chan [214] | 4-6,1-6 | |
| Rome, USA | 02/25 17:10 | 28 | [235] Hong, Seong Chan v Alex Michelsen [466] | 6-4,5-7,1-6 | |
| Rome, USA | 02/24 16:00 | 27 | Hong, Seong Chan v Kodat, Toby Alex | 4-6,6-3,6-4 | |
| Rome, USA | 02/23 16:00 | 26 | [235] Hong, Seong Chan v Gabriel Decamps [363] | 6-1,6-0 | |
| Rome, USA | 02/21 18:10 | 25 | Hong, Seong Chan v Gabriele T Brancatelli | 6-1,6-3 | |
| Challenger - Chennai | 02/15 06:45 | 26 | [229] Arthur Cazaux v Hong, Seong Chan [245] | 6-3,6-4 | |
| Challenger - Chennai | 02/13 08:20 | 25 | [245] Hong, Seong Chan v Sebastian Ofner [155] | 6-4,6-3 | |
| Coupe Davis | 02/05 06:50 | 45 | [237] Hong, Seong Chan v Zizou Bergs [115] | 6-3,7-6 | |
| Coupe Davis | 02/04 04:40 | 45 | [237] Hong, Seong Chan v David Goffin [41] | 4-6,2-6 | |
| Challenger Nonthaburi | 01/21 03:30 | 28 | [261] Sho Shimabukuro v Hong, Seong Chan [257] | 6-2,7-5 | |
| Challenger Nonthaburi | 01/20 03:30 | 27 | [252] Michael Geerts v Hong, Seong Chan [257] | 1-6,5-7 | |
| Challenger Nonthaburi | 01/18 05:25 | 26 | [257] Hong, Seong Chan v Nam Hoang Ly [247] | 6-2,7-6 | |
| Challenger Nonthaburi | 01/16 06:45 | 25 | Hong, Seong Chan v Kasidit Samrej | 6-4,6-4 | |
| Challenger Noumea | 01/02 07:40 | 25 | [252] Hong, Seong Chan v Thomas Fancutt [375] | 4-6,6-3,3-6 | |
| Challenger Matsuyama | 11/13 04:00 | 29 | [204] Tung-Lin Wu v Hong, Seong Chan [371] | 3-6,2-6 | |
| Challenger Matsuyama | 11/12 03:10 | 28 | [355] Shintaro Mochizuki v Hong, Seong Chan [371] | 1-6,6-2,3-6 | |
| Challenger Matsuyama | 11/11 03:05 | 27 | [422] Jason Jung v Hong, Seong Chan [371] | 1-6,4-6 | |
| Challenger Matsuyama | 11/10 01:00 | 26 | [371] Hong, Seong Chan v Nino Serdarusic [254] | 6-4,6-2 | |
| Challenger Matsuyama | 11/08 01:00 | 25 | [371] Hong, Seong Chan v Mukund Sasikumar [349] | 6-2,6-1 | |
| Challenger Matsuyama | 11/07 01:00 | 19 | Hong, Seong Chan v Shinji Hazawa | 6-3,6-4 | |
| Challenger Yokohama | 11/01 02:15 | 25 | [382] Hong, Seong Chan v Kaichi Uchida [172] | 6-3,5-7,3-6 | |
| Challenger Yokohama | 10/31 01:30 | 19 | Hong, Seong Chan v Keisuke Saitoh | 6-2,7-5 | |
| Challenger - Busan | 10/22 06:00 | 28 | [470] Hong, Seong Chan v Radu Albot [85] | 6-7,3-6 | |
| Challenger - Busan | 10/21 06:45 | 27 | [135] John Millman v Hong, Seong Chan [470] | 6-3,4-6,5-7 | |
| Challenger - Busan | 10/20 02:00 | 26 | [470] Hong, Seong Chan v Yunseong Chung [395] | 6-3,7-5 | |
| Challenger - Busan | 10/18 04:25 | 25 | [470] Hong, Seong Chan v Li Tu [190] | 6-3,3-6,6-1 | |
| Challenger - Busan | 10/17 02:00 | 19 | [287] Max Purcell v Hong, Seong Chan [472] | 7-6,6-0 | |
| Challenger - Busan | 10/16 01:30 | 14 | Suk Ann v Hong, Seong Chan | 2-6,2-6 | |
| Challenger - Gwangju | 10/04 07:45 | 25 | [371] Mukund Sasikumar v Hong, Seong Chan [467] | 4-6,6-1,7-5 | |
| ATP Seoul | 09/26 10:00 | 25 | [471] Hong, Seong Chan v Kaichi Uchida [163] | 4-6,2-6 |
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.