Koki Watanabe
Japan · Men's singles · Born 29.01.1999 (27 years) · Height: 1.67 m · Left-handed#15
Men's singles
59,220
Points
3
Titles
245
Matches
141–104
Wins / Losses (58%)
Matches
Results Season 2026
Korea Open
Wednesday 4 November 2026 · Round of 32
French Open
Thursday 22 October 2026 · Round of 16
Tuesday 20 October 2026 · Round of 32
Denmark Open
Thursday 15 October 2026 · Round of 16
Tuesday 13 October 2026 · Round of 32
Arctic Open
Saturday 10 October 2026 · Semi-final
Friday 9 October 2026 · Quarter-final
Thursday 8 October 2026 · Round of 16
Wednesday 7 October 2026 · Round of 32
China Masters
Tuesday 1 September 2026 · Round of 32
China Open
Wednesday 22 July 2026 · Round of 32
Japan Open
Sunday 19 July 2026 · Final
Saturday 18 July 2026 · Semi-final
Friday 17 July 2026 · Quarter-final
Thursday 16 July 2026 · Round of 16
Wednesday 15 July 2026 · Round of 32
Indonesia Open
Thursday 4 June 2026 · Round of 16
Wednesday 3 June 2026 · Round of 32
Singapore Open
Saturday 30 May 2026 · Semi-final
Friday 29 May 2026 · Quarter-final
Thursday 28 May 2026 · Round of 16
Wednesday 27 May 2026 · Round of 32
Malaysia Masters
Wednesday 20 May 2026 · Round of 32
Thailand Open
Friday 15 May 2026 · Quarter-final
Thursday 14 May 2026 · Round of 16
Wednesday 13 May 2026 · Round of 32
Thomas Cup
Friday 1 May 2026 ·
Wednesday 29 April 2026 ·
Monday 27 April 2026 ·
Saturday 25 April 2026 ·
Asia Championships
Thursday 9 April 2026 · Round of 16
Wednesday 8 April 2026 · Round of 32
Swiss Open
Friday 13 March 2026 · Quarter-final
Thursday 12 March 2026 · Round of 16
Wednesday 11 March 2026 · Round of 32
All England Open
Friday 6 March 2026 · Quarter-final
Thursday 5 March 2026 · Round of 16
Tuesday 3 March 2026 · Round of 32
Indonesia Masters
Wednesday 21 January 2026 · Round of 32
India Open
Wednesday 14 January 2026 · Round of 64
Malaysia Open
Thursday 8 January 2026 · Round of 16
Wednesday 7 January 2026 · Round of 64
World ranking
| # | Player | Country | Tournaments | Points | Change |
|---|---|---|---|---|---|
| 10 |  Indonesia |
18 | 73,699 | — | |
| 11 |  Singapore |
16 | 69,020 | — | |
| 12 |  France |
19 | 66,047 | — | |
| 13 |  India |
19 | 65,723 | — | |
| 14 |  Chinese Taipei |
18 | 64,924 | — | |
| 15 | Japan |
20 | 59,220 | — | |
| 16 |  Thailand |
17 | 58,635 | — | |
| 17 | Japan |
22 | 58,585 | — | |
| 18 |  China |
15 | 57,383 | — | |
| 19 |  Hong Kong |
18 | 56,863 | — | |
| 20 | Hong Kong |
21 | 55,650 |
BWF World Ranking, week 46 2026. Source: BWF.
Highlights
Chou T.C 2 - 0 Watanabe K. · Thursday 15 October 2026
Popov C. 2 - 0 Watanabe K.Japan Open · Final · Sunday 19 July 2026
Sen L. 0 - 2 Watanabe K.Japan Open · Round of 32 · Wednesday 15 July 2026
KY.Loh 2 - 1 Watanabe K.Singapore Open · Semi-final · Saturday 30 May 2026
Shi Y. 2 - 1 Watanabe K. · Friday 15 May 2026
Antonsen A. 0 - 2 Watanabe K.All England Open · Round of 32 · Tuesday 3 March 2026
Watanabe K. 2 - 0 Shetty A. · Wednesday 22 October 2025
Vitidsarn K. 2 - 0 Watanabe K.Arctic Open · Quarter-final · Saturday 11 October 2025
Watanabe K. 0 - 2 Lanier A.Japan Open · Semi-final · Saturday 19 July 2025
Lee C. 2 - 1 Watanabe K.Indonesia Open · Round of 32 · Tuesday 3 June 2025
Statistics
Key figures
CareerDeciding 3rd game
52–45
54%
After losing game 1
31–84
27%
After winning game 1
106–20
84%
Finals
3–3
50%
Semi-finals
6–5
55%
Longest winning streak
9
wins in a row
Deciding 3rd game
6–9
40%
After losing game 1
3–16
16%
After winning game 1
19–3
86%
Finals
0–1
0%
Semi-finals
1–2
33%
Longest winning streak
4
wins in a row
Deciding 3rd game
6–6
50%
After losing game 1
5–13
28%
After winning game 1
6–3
67%
Semi-finals
0–1
0%
Longest winning streak
3
wins in a row
Deciding 3rd game
10–7
59%
After losing game 1
5–17
23%
After winning game 1
22–0
100%
Finals
1–1
50%
Semi-finals
2–2
50%
Longest winning streak
5
wins in a row
Deciding 3rd game
11–5
69%
After losing game 1
7–10
41%
After winning game 1
17–3
85%
Finals
1–1
50%
Semi-finals
2–0
100%
Longest winning streak
7
wins in a row
Deciding 3rd game
1–4
20%
After losing game 1
1–7
12%
After winning game 1
6–2
75%
Longest winning streak
2
wins in a row
Deciding 3rd game
0–1
0%
After losing game 1
0–3
0%
After winning game 1
1–1
50%
Longest winning streak
1
wins in a row
Deciding 3rd game
2–2
50%
After losing game 1
1–1
50%
After winning game 1
2–2
50%
Longest winning streak
2
wins in a row
Deciding 3rd game
6–5
55%
After losing game 1
4–3
57%
After winning game 1
15–3
83%
Finals
1–0
100%
Semi-finals
1–0
100%
Longest winning streak
9
wins in a row
Deciding 3rd game
4–4
50%
After losing game 1
3–4
43%
After winning game 1
7–2
78%
Longest winning streak
5
wins in a row
Deciding 3rd game
3–1
75%
After losing game 1
1–6
14%
After winning game 1
7–0
100%
Longest winning streak
2
wins in a row
Deciding 3rd game
2–1
67%
After losing game 1
0–3
0%
After winning game 1
3–1
75%
Longest winning streak
2
wins in a row
Deciding 3rd game
1–0
100%
After losing game 1
1–1
50%
After winning game 1
1–0
100%
Longest winning streak
2
wins in a row
H2H
MOST FREQUENT OPPONENTS 2021–2026Wins / Losses
Wins / Losses
2015–2026Per year
Tournaments and titles
| Tournament | Best result | Appearances | Matches (W–L) |
|---|---|---|---|
| Canada Open | Winner 2024 | 4 | 11–3 |
| Swiss Open | Winner 2023 | 6 | 8–5 |
| Orleans Masters | Winner 2019 | 2 | 5–1 |
| Japan Open | Final 2026 | 4 | 9–4 |
| Denmark Open | Final 2024 | 4 | 6–4 |
| Korea Masters | Final 2023 | 3 | 7–3 |
| Arctic Open | Semi-final | 3 | 10–4 |
| US Open | Semi-final | 3 | 5–3 |
| Singapore Open | Semi-final | 3 | 4–3 |
| French Open | Quarter-final | 4 | 3–4 |
| Thailand Open | Quarter-final | 3 | 4–3 |
| All England Open | Quarter-final | 3 | 4–3 |
| Japan Masters | Quarter-final | 3 | 3–3 |
| Vietnam Open | Quarter-final | 2 | 4–2 |
| China Open | Quarter-final | 3 | 2–3 |
| India Open | Quarter-final | 3 | 2–3 |
| Australian Open | Quarter-final | 3 | 2–3 |
| Spain Masters | Quarter-final | 1 | 2–1 |
| Akita Masters | Quarter-final | 1 | 2–1 |
| Thailand Masters | Round of 16 | 4 | 5–4 |
| Korea Open | Round of 16 | 4 | 2–4 |
| Asia Championships | Round of 16 | 4 | 2–4 |
| Malaysia Open | Round of 16 | 3 | 3–3 |
| Indonesia Open | Round of 16 | 3 | 1–3 |
| Indonesia Masters | Round of 16 | 3 | 2–2 |
| Macau Open | Round of 16 | 2 | 2–2 |
| US Grand Prix | Round of 16 | 1 | 2–1 |
| Hong Kong Open | Round of 16 | 1 | 1–1 |
| Indonesia Masters I | Round of 16 | 1 | 1–1 |
| New Zealand Open | Round of 16 | 1 | 1–1 |
| China Masters | Round of 32 | 5 | 0–5 |
| Malaysia Masters | Round of 32 | 4 | 0–4 |
| Chinese Taipei Masters | Round of 32 | 1 | 0–1 |
| World Championships | Round of 64 | 2 | 0–2 |