Park Ui-sung (Korean: 박의성; born 27 September 2000) is a South Korean tennis player. He has a career-high ranking of No. 635 achieved on 12 September 2022.
Park has a career high ITF junior combined ranking of No. 3 achieved on 1 January 2018.
Challenger and World Tennis Tour Finals
Singles: 3 (2-1)
| Legend (singles)
 |  
| ATP Challenger Tour (0-0)
 |  
| ITF World Tennis Tour (2-1)
 |   
 | 
| Titles by surface
 |  
| Hard (2–1)
 |  
| Clay (0-0)
 |  
| Grass (0–0)
 |  
| Carpet (0–0)
 |   
 | 
| Result
 | 
W–L
 | 
   Date   
 | 
Tournament
 | 
Tier
 | 
Surface
 | 
Opponent
 | 
Score
 | 
| Loss
 | 
0–1
 | 
Mar 2022
 | 
M15 Sharm El Sheikh, Egypt
 | 
World Tennis Tour
 | 
Hard
 | 
  Saba Purtseladze
 | 
4-6, 4-6
 | 
| Win
 | 
1–1
 | 
Sep 2022
 | 
M15 Daegu, South Korea
 | 
World Tennis Tour
 | 
Hard
 | 
  Kim Cheong-Eui
 | 
6-3, 6-4
 | 
| Win
 | 
2–1
 | 
Jun 2023
 | 
M25 Daegu, South Korea
 | 
World Tennis Tour
 | 
Hard
 | 
  Lee Jea-moon
 | 
6-3, 7-5
 | 
Doubles: 9 (3–6)
| Legend (singles)
 |  
| ATP Challenger Tour (0–0)
 |  
| ITF World Tennis Tour (3–6)
 |   
 | 
| Titles by surface
 |  
| Hard (3–3)
 |  
| Clay (0–3)
 |  
| Grass (0–0)
 |  
| Carpet (0–0)
 |   
 | 
| Result
 | 
W–L
 | 
   Date   
 | 
Tournament
 | 
Tier
 | 
Surface
 | 
Partner
 | 
Opponents
 | 
Score
 | 
| Loss
 | 
0–1
 | 
Dec 2018
 | 
Turkey F38, Antalya
 | 
Futures
 | 
Clay
 | 
  Jeong Yeong-Seok
 | 
  Wilson Leite     Jeroen Vanneste
 | 
2-6, 2-6
 | 
| Loss
 | 
0–2
 | 
May 2019
 | 
M15 Cairo, Egypt
 | 
World Tennis Tour
 | 
Clay
 | 
  Jeong Yeong-Seok
 | 
  Alexander Igoshin     Bernardo Saraiva
 | 
6-4, 2-6, [4–10]
 | 
| Loss
 | 
0–3
 | 
Jun 2019
 | 
M15 Anseong, South Korea
 | 
World Tennis Tour
 | 
Clay
 | 
  Jeong Yeong-Seok
 | 
  Haru Inoue     Ryota Tanuma
 | 
(W/O)
 | 
| Win
 | 
1–3
 | 
Jun 2021
 | 
M15 Monastir, Tunisia
 | 
World Tennis Tour
 | 
Hard
 | 
  Siddhant Banthia
 | 
  Jeremy Beale     Ajeet Rai
 | 
(W/O)
 | 
| Loss
 | 
1–4
 | 
Nov 2021
 | 
M15 Heraklion, Greece
 | 
World Tennis Tour
 | 
Hard
 | 
  Harry Wendelken
 | 
  Filip Bergevi     Kai Wehnelt
 | 
6–7(8–10), 6–4, [7–10]
 | 
| Loss
 | 
1–5
 | 
Mar 2022
 | 
M15 Sharm El Sheikh, Egypt
 | 
World Tennis Tour
 | 
Hard
 | 
  Sergey Fomin
 | 
  Jiri Barnat     Filip Duda
 | 
3–6, 2–6
 | 
| Loss
 | 
1–6
 | 
Jun 2022
 | 
M15 Tay Ninh, Vietnam
 | 
World Tennis Tour
 | 
Hard
 | 
  Son Ji Hoon
 | 
  Francis Casey Alcantara     Lý Hoàng Nam
 | 
3–6, 1–6
 | 
| Win
 | 
2–6
 | 
Nov 2022
 | 
M25 Sharm El Sheikh, Egypt
 | 
World Tennis Tour
 | 
Hard
 | 
  Jeong Yeong-Seok
 | 
  Jacopo Berrettini     Francesco Forti
 | 
6–1, 7–6(11–9)
 | 
| Win
 | 
3–6
 | 
Jun 2023
 | 
M25 Daegu, South Korea
 | 
World Tennis Tour
 | 
Hard
 | 
  Jeong Yeong-Seok
 | 
  Cho Seung Woo     Kim Dong Ju
 | 
2–6, 6–0, [10–5]
 | 
External links