12 Oct 1998
Born
175 cm
Height
73 kg
Weight
right-handed
Plays
Yamagata, Japan
Birthplace
Tokyo, Japan
Residence
$10,087
Prize money (season)
$61,692
Prize money (career)
Ranking trend
best #473Career record
15 matches5–10
Win–loss
33%
Hard · 5–10
—
Clay · 0–0
—
Grass · 0–0
2025
10 matches · 5–5 · 50.0%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Hardcourt Outdoor | 10 | 5 | — | 19 | 18 | 64% | 42% | — | — | 2–0 |
2024
18 matches · 9–9 · 50.0%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Hardcourt Indoor | 1 | 0 | — | 0 | 5 | 65% | 29% | — | — | — |
| Hardcourt Outdoor | 17 | 9 | 1 | 48 | 45 | 64% | 41% | — | — | 4–0 |
M = matches · W = wins · DF = double faults · BP conv. = break points converted · UE = unforced errors · TB = tiebreaks won–lost.
FT
Phan Thiet 3, Vietnam
hard
T. Kumasaka
M. Borisiouk
4
6
2
6
0
2
FT
Zhangjiagang, China
hard
J. Charlton
T. Kumasaka
6
3
6
4
2
0
FT
Astana, Kazakhstan
hard
T. Kumasaka
H. Matsuoka
(4)
4
6
1
6
0
2
FT
Astana, Kazakhstan
hard
T. Kumasaka
C. Sinclair
(Q)
6
2
7
6
2
0
FT
Grodzisk Mazowiecki, Poland
hard
A. Donski
(Q)
T. Kumasaka
7
5
6
4
2
0
FT
Samsun, Turkiye
hard
T. Kumasaka
F. Bax
(2)
6
7
3
6
0
2
FT
Segovia, Spain
hard
T. Kumasaka
L. Pavlović
6
3
1
6
2
6
1
2
FT
Segovia, Spain
hard
S. Callejon Hernando
(3)
T. Kumasaka
(8)
3
6
6
7
0
2
FT
Segovia, Spain
hard
A. Meneses Perny
(WC)
T. Kumasaka
(8)
2
6
4
6
0
2
FT
Pozoblanco, Spain
hard
T. Kumasaka
(4)
P. Lagutin
(A)
3
6
1
6
0
2
FT
Pozoblanco, Spain
hard
T. Kumasaka
(4)
A. Turriziani Alvarez
(A)
6
3
6
2
2
0
FT
ATP Challenger Bengaluru 3, India Men Singles
hard
T. Kumasaka
T. Yamanaka
(Q)
6
7
6
4
6
7
1
2
FT
Busan, South Korea
hard
P. Sornlaksup
T. Kumasaka
6
4
6
7
6
3
2
1
FT
Yokkaichi, Japan
hard
F. Sun
(1)
T. Kumasaka
(10)
6
2
6
2
2
0
FT
Yokkaichi, Japan
hard
S. Mitsui
T. Kumasaka
(10)
4
6
0
1
0
1