Head 2 Head
Win Loss Stats
Koyama
WWWWWLWLWW
Koizumi
LLWLWLWWWL
2026
2025
2024
33 - 18
29 - 16
27-15
Hard
28-15
6-3
Clay
1-1
-
28 May 26
-
M15 Karuizawa -
-
Clay
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Hiromasa Koyama
| Year | Sum. | Hard | Clay | I.hard | Grass | C. |
|---|---|---|---|---|---|---|
| 2026 | 33-18 | 27-15 | 6-3 | 0-0 | 0-0 | 0-0 |
| 2025 | 18-16 | 5-10 | 12-4 | 1-2 | 0-0 | 0-0 |
| 2024 | 2-5 | 2-3 | 0-0 | 0-2 | 0-0 | 0-0 |
| Total | 53-39 | 34-28 | 18-7 | 1-4 | 0-0 | 0-0 |
M15 Wuning
-
Zhao ZhaoZ.ZhaoCHN
- 6-1 6-3
- Fin.
-
13 Sep 26
-
Jaesung ChoeJ.ChoeKOR
- 6-4 7-5
- 1/2
-
12 Sep 26
-
Wishaya TrongcharoenchaikulW.TrongcharoenchaikulTHA
- 6-1 6-4
- 1/4
-
11 Sep 26
-
Zichen ShaoZ.ShaoCHN
- 6-4 6-4
- 2nd
-
10 Sep 26
-
Yue XiaY.XiaCHN
- 6-1 6-4
- 1st
-
09 Sep 26
M15 Wuning
-
Qian SunQ.SunCHN Loss
- 6-4 6-4
- 2nd
-
03 Sep 26
-
Lachlan VickeryL.VickeryAUS
- 6-3 6-2
- 1st
-
02 Sep 26
M25 Taipei
-
Luca CastelnuovoL.CastelnuovoSUI Loss
- 3-6 7-65 6-1
- 2nd
-
27 Aug 26
-
Shinji HazawaS.HazawaJPN
- 6-73 6-1 6-2
- 1st
-
26 Aug 26
-
Taisei IchikawaT.IchikawaJPN
- 4-6 7-63 10-5
- Q.
-
25 Aug 26
Noritaka Koizumi
| Year | Sum. | Hard | Clay | I.hard | Grass | C. |
|---|---|---|---|---|---|---|
| 2026 | 29-16 | 28-15 | 1-1 | 0-0 | 0-0 | 0-0 |
| 2025 | 7-6 | 4-5 | 3-1 | 0-0 | 0-0 | 0-0 |
| 2024 | 9-8 | 1-2 | 8-6 | 0-0 | 0-0 | 0-0 |
| 2023 | 1-2 | 1-2 | 0-0 | 0-0 | 0-0 | 0-0 |
| Total | 46-32 | 34-24 | 12-8 | 0-0 | 0-0 | 0-0 |
Phan Thiet 3 Challenger
-
Taisei IchikawaT.IchikawaJPN Loss
- 6-4 6-1
- q1
-
06 Sep 26
M25 Urayasu
-
Shunsuke MitsuiS.MitsuiJPN Loss
- 6-2 6-2
- 2nd
-
03 Sep 26
-
Riku TakahataR.TakahataJPN
- 7-5 6-3
- 1st
-
01 Sep 26
M25 Taipei
-
Kristjan TammK.TammEST Loss
- 6-2 7-65
- Q.
-
25 Aug 26
-
Lin Hao-YuL.Hao-YuTPE
- 6-1 6-2
- q1
-
23 Aug 26
M25 Taipei
-
Masamichi ImamuraM.ImamuraJPN Loss
- 6-1 6-0
- 2nd
-
21 Aug 26
-
Kuan-Yi LeeK.LeeTPE
- 6-3 7-64
- 1st
-
20 Aug 26
-
Ryota TanumaR.TanumaJPN
- 6-1 6-3
- Q.
-
17 Aug 26
-
Ke Hau HungK.HungTPE
- 6-3 6-1
- q1
-
16 Aug 26
M15 Wuning
-
Fitriadi M RifqiF.RifqiINA Loss
- 6-72 6-0 6-0
- 1/4
-
17 Jul 26
H2H Ranking live progression
