Head 2 Head
Win Loss Stats
Yamasaki
LLWWWWLWLW
Sinclair
LWLLWWWLWW
2026
2025
2024
15 - 11
39 - 23
14-9
Hard
22-19
0-1
I Hard
3-2
1-1
Clay
5-1
0-0
Grass
9-1
- J.Yamasaki (q)
- C.Sinclair (7)
- 7-63 6-3
- 1st
-
10 Jun 26
-
M15 Tokyo -
-
Hard
-
- C.Sinclair (5)
- J.Yamasaki
- 6-3 5-7 6-3
- 1st
-
-
11 Jun 25
-
M15 Harmon -
-
Hard
-
Latest Tonic News – Jumpei Yamasaki and Colin Sinclair
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Jumpei Yamasaki
| Year | Sum. | Hard | Clay | I.hard | Grass | C. |
|---|---|---|---|---|---|---|
| 2026 | 15-11 | 14-9 | 1-1 | 0-1 | 0-0 | 0-0 |
| 2025 | 29-17 | 18-12 | 2-1 | 9-4 | 0-0 | 0-0 |
| 2024 | 14-11 | 14-11 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2023 | 16-13 | 12-12 | 4-1 | 0-0 | 0-0 | 0-0 |
| 2022 | 25-13 | 25-13 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2021 | 9-17 | 7-11 | 2-6 | 0-0 | 0-0 | 0-0 |
| 2020 | 1-4 | 1-3 | 0-0 | 0-1 | 0-0 | 0-0 |
| 2019 | 38-20 | 33-14 | 0-3 | 4-2 | 0-0 | 1-1 |
| 2018 | 42-33 | 37-29 | 2-1 | 3-3 | 0-0 | 0-0 |
| 2017 | 19-26 | 17-20 | 0-2 | 2-2 | 0-0 | 0-2 |
| 2016 | 44-24 | 38-21 | 6-3 | 0-0 | 0-0 | 0-0 |
| 2015 | 18-9 | 6-3 | 7-5 | 0-0 | 0-0 | 5-1 |
| 2014 | 7-4 | 3-2 | 4-2 | 0-0 | 0-0 | 0-0 |
| Total | 277-202 | 225-160 | 28-25 | 18-13 | 0-0 | 6-4 |
M15 Bali
-
Taisei IchikawaT.IchikawaJPN Loss
- 6-3 4-1 ret.
- 1st
-
21 Jul 26
M15 Tokyo
-
Jangjun KimJ.KimKOR Loss
- 6-1 6-4
- 1/4
-
12 Jun 26
-
Hayden JonesH.JonesAUS
- 6-1 7-64
- 2nd
-
11 Jun 26
-
Colin SinclairC.SinclairAUS
- 7-63 6-3
- 1st
-
10 Jun 26
-
Asahi HarazakiA.HarazakiJPN
- 6-4 6-2
- Q.
-
08 Jun 26
-
Natsuki YamamotoN.YamamotoJPN
- 6-4 6-72 10-8
- q1
-
07 Jun 26
M15 Karuizawa
-
Leo VithoontienL.VithoontienJPN Loss
- 6-4 6-4
- 2nd
-
28 May 26
-
Ryo MinakataR.MinakataJPN
- 6-1 6-3
- 1st
-
26 May 26
M25 Nakhon Pathom
-
Takuya KumasakaT.KumasakaJPN Loss
- 6-2 6-2
- 1st
-
06 May 26
-
Abhinav Sanjeev ShanmugamA.ShanmugamIND
- 6-4 6-4
- Q.
-
04 May 26
Colin Sinclair
| Year | Sum. | Hard | Clay | I.hard | Grass | C. |
|---|---|---|---|---|---|---|
| 2026 | 39-23 | 22-19 | 5-1 | 3-2 | 9-1 | 0-0 |
| 2025 | 26-26 | 23-25 | 0-0 | 3-1 | 0-0 | 0-0 |
| 2024 | 22-17 | 18-15 | 4-2 | 0-0 | 0-0 | 0-0 |
| 2023 | 39-32 | 31-25 | 8-6 | 0-1 | 0-0 | 0-0 |
| 2022 | 31-22 | 22-14 | 7-5 | 2-3 | 0-0 | 0-0 |
| 2021 | 39-21 | 22-8 | 14-9 | 3-4 | 0-0 | 0-0 |
| 2020 | 9-12 | 3-7 | 6-4 | 0-1 | 0-0 | 0-0 |
| 2019 | 26-25 | 17-15 | 8-7 | 0-1 | 1-2 | 0-0 |
| 2018 | 33-14 | 14-5 | 16-8 | 3-1 | 0-0 | 0-0 |
| 2017 | 37-16 | 12-7 | 25-9 | 0-0 | 0-0 | 0-0 |
| Total | 301-208 | 184-140 | 93-51 | 14-14 | 10-3 | 0-0 |
Guangzhou Challenger
-
Rio NoguchiR.NoguchiJPN Loss
- 6-3 6-3
- 2nd
-
16 Sep 26
-
Linang XiaoL.XiaoCHN
- 6-4 1-6 7-65
- 1st
-
14 Sep 26
M15 Wuning
-
Boxiong ZhangB.ZhangCHN Loss
- 7-5 7-68
- 1st
-
09 Sep 26
M15 Wuning
-
Qian SunQ.SunCHN Loss
- 4-6 6-2 7-67
- 1/2
-
05 Sep 26
-
Zijiang YangZ.YangCHN
- 3-6 6-4 6-2
- 1/4
-
04 Sep 26
-
Shaoyun LiuS.LiuCHN
- 7-5 6-4
- 2nd
-
03 Sep 26
-
Linang XiaoL.XiaoCHN
- 6-3 3-6 6-2
- 1st
-
02 Sep 26
Astana Challenger
-
Takuya KumasakaT.KumasakaJPN Loss
- 6-2 7-64
- 1st
-
11 Aug 26
-
Damir ZhalgasbayD.ZhalgasbayKAZ
- 6-4 5-7 6-4
- Q.
-
10 Aug 26
-
Alibek KachmazovA.KachmazovRUS
- 7-63 6-76 6-2
- q1
-
09 Aug 26
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