02 Jun 2003
Born
175 cm
Height
70 kg
Weight
right-handed
Plays
Kawasaki, Japan
Birthplace
$555,568
Prize money (season)
$1,758,163
Prize money (career)
Ranking trend
best #112Career record
80 matches36–44
Win–loss
41%
Hard · 24–34
0%
Clay · 0–3
71%
Grass · 12–5
2025
71 matches · 42–29 · 59.2%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Grass | 14 | 11 | — | 60 | 34 | 72% | 52% | 99 | 97 | 2–3 |
| Hardcourt Indoor | 6 | 2 | — | 34 | 24 | 72% | 45% | — | — | 0–2 |
| Hardcourt Outdoor | 43 | 27 | 1 | 144 | 151 | 67% | 42% | 58 | 79 | 3–3 |
| Red Clay | 8 | 2 | — | 7 | 36 | 59% | 42% | — | — | 1–0 |
2024
61 matches · 28–33 · 45.9%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Grass | 7 | 2 | — | 13 | 17 | 63% | 37% | — | — | 1–3 |
| Hardcourt Indoor | 4 | 1 | — | 7 | 12 | 64% | 26% | — | — | — |
| Hardcourt Outdoor | 38 | 18 | — | 108 | 152 | 66% | 42% | 41 | 55 | 6–8 |
| Red Clay | 12 | 7 | — | 19 | 55 | 65% | 47% | 45 | 50 | 1–0 |
2023
13 matches · 7–6 · 53.8%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Grass | 5 | 3 | — | 11 | 8 | 66% | 50% | 25 | 33 | 1–1 |
| Hardcourt Outdoor | 7 | 4 | — | 22 | 24 | 72% | 33% | 4 | 5 | 4–0 |
| Red Clay | 1 | 0 | 1 | 1 | 5 | 59% | 33% | — | — | — |
M = matches · W = wins · DF = double faults · BP conv. = break points converted · UE = unforced errors · TB = tiebreaks won–lost.
09:00
Helsinki, Finland
hard
S. Mochizuki
L. Giustino
–
–
FT
Orleans, France
hard
S. Mochizuki
C. Hemery
(Q)
6
4
6
7
2
6
1
2
FT
Bratislava, Slovakia
hard
S. Mochizuki
(8)
N. Budkov Kjaer
3
6
2
6
0
2
FT
Brest, France
hard
S. Mochizuki
(7)
F. Cinà
0
6
6
4
3
6
1
2
FT
Jinan China
hard
M. Bellucci
(8)
S. Mochizuki
6
2
7
6
2
0
FT
Jinan China
hard
S. Mochizuki
Y. Watanuki
(Q)
4
6
6
2
7
6
2
1
FT
Jinan China
hard
S. Mochizuki
D. Sweeny
6
3
7
6
2
0
FT
Jinan China
hard
F. Diaz Acosta
(4)
S. Mochizuki
3
5
6
7
0
2
FT
Shanghai
hard
R. Safiullin
(2)
S. Mochizuki
(15)
6
2
6
3
2
0
FT
Shanghai
hard
T. Daniel
S. Mochizuki
6
2
2
6
2
6
1
2
FT
Tokyo
hard
S. Mochizuki
J. Faria
2
6
4
6
0
2
FT
Chengdu
hard
M. Damm Jr
S. Mochizuki
(Q)
6
1
6
4
2
0
FT
Chengdu
hard
S. Mochizuki
(1)
P. Kotov
(8)
7
5
6
3
2
0
FT
Chengdu
hard
S. Mochizuki
L. Xiao
7
5
4
6
7
5
2
1
FT
Guangzhou, China
hard
S. Mochizuki
(1)
P. Kotov
6
7
1
6
0
2
FT
US Open, Men
hard
J. Menšik
(17)
S. Mochizuki
(LL)
6
1
6
4
7
5
3
0
FT
US Open, Men
hard
S. Mochizuki
(6)
F. Passaro
4
6
2
6
0
2
FT
US Open, Men
hard
S. Mochizuki
(6)
B. Shick
6
4
6
1
2
0
FT
US Open, Men
hard
S. Mochizuki
(6)
D. Milavsky
(WC)
7
6
6
4
2
0
FT
Quebec City, Canada
hard
S. Kwon
(Q)
S. Mochizuki
(A)
7
5
4
6
6
3
2
1