Hiromasa Koyama
17 year old
13 Dec 2007
9 - 13win/loss
2025 Highlights
M15 Antalya
-
Dragos Nicolae MadarasD.MadarasROU Loss
- 6-3 6-4
- 1st
-
03 Dec 25
L
-
Oleg SyrovatskiyO.SyrovatskiyKAZ
- 6-3 6-2
- Q.
-
02 Dec 25
W
-
Lukas TzimasL.TzimasBEL
- 6-2 6-0
- q2
-
01 Dec 25
W
-
Raffael GasanovR.GasanovGER
- 6-2 6-0
- q1
-
30 Nov 25
W
M15 Tanagura
-
Toshiki KarigyoT.KarigyoJPN Loss
- 3-6 7-5 6-1
- 1st
-
22 Oct 25
L
-
Yusei FukuokaY.FukuokaJPN
- 6-2 6-1
- Q.
-
21 Oct 25
W
-
Hayato TokodaH.TokodaJPN
- 6-1 6-0
- q2
-
20 Oct 25
W
M25 Takasaki
-
Yuto OkiY.OkiJPN Loss
- 3-6 6-4 10-8
- Q.
-
15 Sep 25
L
-
Kenta AraiK.AraiJPN
- 6-2 6-1
- q1
-
14 Sep 25
W
M25 Sapporo
-
Yusuke KusuharaY.KusuharaJPN Loss
- 2-6 7-5 6-3
- 1st
-
10 Sep 25
L
M25 Sapporo
-
Shinji HazawaS.HazawaJPN Loss
- 3-6 6-1 6-4
- 1st
-
02 Sep 25
L
M15 Singapore
-
Dong Ju KimD.KimKOR Loss
- 6-4 6-3
- Q.
-
11 Aug 25
L
-
Jaden Dewandaka TanJ.TanINA
- 6-0 6-2
- q1
-
10 Aug 25
W
M15 Singapore
-
Jaden Dewandaka TanJ.TanINA Loss
- 6-3 6-2
- q1
-
03 Aug 25
L
M15 Tokyo
-
Jake DelaneyJ.DelaneyAUS Loss
- 7-67 6-4
- 2nd
-
10 Jul 25
L
-
Kyle SeeligK.SeeligUSA
- 6-1 6-4
- 1st
-
08 Jul 25
W
M15 Tokyo
-
Hikaru ShiraishiH.ShiraishiJPN Loss
- 6-2 6-0
- 2nd
-
03 Jul 25
L
-
Tai SachT.SachAUS
- 6-72 7-67 6-1
- 1st
-
02 Jul 25
W
M15 Kashiwa
-
Daisuke SumizawaD.SumizawaJPN Loss
- 6-2 4-6 6-1
- 1st
-
01 Apr 25
L
M15 Tsukuba
-
Yusuke TakahashiY.TakahashiJPN Loss
- 6-3 6-0
- 1st
-
26 Mar 25
L
M15 Nishi-Tokyo
-
Tai SachT.SachAUS Loss
- 6-2 6-3
- 1st
-
18 Mar 25
L
M15 Hinode
-
Yuta KawahashiY.KawahashiJPN Loss
- 6-2 6-3
- 1st
-
12 Mar 25
L
|
| Year | Sum. | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 9-13 | 5-10 | 3-1 | 1-2 | 0-0 | 0-0 |
| 2024 | 2-5 | 2-3 | 0-0 | 0-2 | 0-0 | 0-0 |
| Total | 11-18 | 7-13 | 3-1 | 1-4 | 0-0 | 0-0 |