24 Jun 2006
Born
193 cm
Height
80 kg
Weight
right-handed
Plays
Nagoya, Japan
Birthplace
$261,800
Prize money (season)
$487,187
Prize money (career)
Ranking trend
best #123Career record
70 matches40–30
Win–loss
57%
Hard · 33–25
57%
Clay · 4–3
50%
Grass · 2–2
2025
59 matches · 34–25 · 57.6%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Hardcourt Indoor | 10 | 4 | — | 76 | 25 | 72% | 33% | — | — | 1–2 |
| Hardcourt Outdoor | 43 | 27 | 2 | 335 | 114 | 71% | 38% | — | — | 10–9 |
| Red Clay | 6 | 3 | — | 41 | 9 | 67% | 21% | — | — | 3–0 |
2024
16 matches · 9–7 · 56.2%| Surface | M | W | Titles | Aces | DF | 1st serve | BP conv. | Winners | UE | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| Hardcourt Indoor | 4 | 2 | — | 18 | 8 | 63% | 8% | — | — | 0–1 |
| Hardcourt Outdoor | 11 | 7 | 2 | 68 | 19 | 74% | 42% | — | — | 3–2 |
| Red Clay | 1 | 0 | — | 3 | 1 | 57% | 12% | — | — | — |
M = matches · W = wins · DF = double faults · BP conv. = break points converted · UE = unforced errors · TB = tiebreaks won–lost.
FT
Matsuyama, Japan
hard
R. Sakamoto
(1)
B. Harris
6
4
2
2
1
0
FT
Matsuyama, Japan
hard
R. Sakamoto
(1)
O. Milić
7
6
6
2
2
0
FT
Matsuyama, Japan
hard
R. Sakamoto
(1)
K. Samrej
6
4
6
2
2
0
FT
Matsuyama, Japan
hard
R. Sakamoto
(1)
R. Tokuda
(Q)
6
1
6
2
2
0
—
Taipei, Chinese Taipei Men Singles
hard
J. McCabe
R. Sakamoto
–
–
FT
Seoul, South Korea
hard
R. Sakamoto
B. Harris
0
3
0
0
FT
Seoul, South Korea
hard
Z. Zhang
R. Sakamoto
0
6
4
6
0
2
FT
Seoul, South Korea
hard
R. Sakamoto
K. Samrej
6
3
6
4
2
0
FT
Almaty
hard
R. Sakamoto
(Q)
K. Khachanov
(5)
2
6
4
6
0
2
FT
Almaty
hard
G. Diallo
(4)
R. Sakamoto
(7)
6
2
4
6
4
6
1
2
FT
Almaty
hard
A. Omarkhanov
R. Sakamoto
2
6
1
6
0
2
FT
Shanghai
hard
A. de Minaur
(9)
R. Sakamoto
(Q)
7
6
6
4
2
0
FT
Shanghai
hard
R. Sakamoto
(Q)
A. Rublev
(23)
6
4
6
4
2
0
FT
Shanghai
hard
M. Trungelliti
R. Sakamoto
3
6
5
7
0
2
FT
Shanghai
hard
K. Jacquet
(3)
R. Sakamoto
(21)
6
7
6
4
6
7
1
2
FT
Shanghai
hard
S. Hong
R. Sakamoto
3
6
5
7
0
2
FT
Tokyo
hard
M. Arnaldi
R. Sakamoto
(WC)
2
6
6
4
6
4
2
1
—
Davis Cup
J. Watt
R. Sakamoto
–
–
FT
Davis Cup
A. Shepp
R. Sakamoto
5
7
4
6
0
2
FT
Shanghai, China
hard
R. Sakamoto
(1)
J. Nam
(Q)
6
7
4
6
0
2