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J Koh

Singapore · Men's singles, mixed doubles and women's doubles · 2016 to 2026

33
matches
48%
won
0
senior titles
0
finals
World ranking

Not on a world ranking list we hold: the full lists are kept from September 2026 and the weekly top lists from 2013, so a player outside them has none.

Our ratingHow it works
1,505Men's singles
rated 13 Sep 2026

198th of 548 rated in the last 12 months. Highest 1,520.

Form
5/10won of the last
10 matches
  1. L
  2. W
  3. L
  4. L
  5. W
  6. L
  7. W
  8. L
  9. W
  10. W

Latest: lost to Wang ZJ, Vietnam Open 2026, round of 32. Newest on the left.

Season by season

Matches played and won, year by year.

  • Played
  • Won
  • A title that year
'16
'18
'20
'22
'24
'26
Show the numbers
YearPlayedWonTitles
2026210
2025520
20241060
2023200
2019310
2018530
2017530
2016100
Recent matches

The last 20 matches.

Scores read from J Koh's side.

Vietnam Open 2026Men's singles Round of 32 Wang ZJ 23–21 9–21 8–21 Lost
Round of 64 Lê Đức Phát 16–21 21–11 21–18 Won
Kaohsiung Masters 2025Men's singles Round of 64 Kim B-j 10–21 13–21 Lost
Indonesia Masters Super 100 2025Men's singles Round of 32 Sathish Karunakaran 13–21 20–22 Lost
Round of 64 M Kicklitz 17–21 21–14 21–15 Won
Vietnam Open 2025Men's singles Round of 32 Arnaud Merklé 21–19 11–21 8–21 Lost
Round of 64 K Thangam 21–12 21–6 Won
Vietnam Open 2024Men's singles Quarter-final Shesar Hiren Rhustavito 16–21 13–21 Lost
Round of 16 A Mishra 21–14 20–22 21–16 Won
Round of 32 Huan K H 21–11 22–20 Won
Round of 64 S Gupta 21–17 22–20 Won
Indonesia Masters Super 100 2024Men's singles Round of 32 Lee Y-g 13–21 11–21 Lost
Round of 64 B Raghav 21–14 21–16 Won
Kaohsiung Masters 2024Men's singles Round of 16 Cheam June Wei 18–21 16–21 Lost
Round of 32 N Pusri 21–7 18–21 21–14 Won
Round of 64 Yang Y 21–16 11–4 ret. Won
Ruichang China Masters 2024Men's singles Round of 64 Wu KA 21–18 22–24 13–21 Lost
Vietnam Open 2023Men's singles Round of 32 Jason Teh 15–21 14–21 Lost
Indonesia Masters Super 100 2023Men's singles Round of 32 Kiran George 14–21 8–21 Lost
World Junior Championships 2019Women's doubles, with M Lee Round of 64 J Franconville / C Racloz 11–21 15–21 Lost
Partners and rivals

Who with, and who against.

Head to head counts every draw match between them, in any event.

Partners

  • A YongMixed doubles · 20191–1
  • M LeeWomen's doubles · 20190–1

Rivals