Ignacio Buse and Rei Sakamoto will clash against each other in the qualifications of the U.S. Open for the 1st time in their career. They are scheduled to compete on Thursday at 11:00 am on Court 13. Here the head to head stats and relative prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Ignacio Buse who should win in 5 sets.

As per the initial odds, Ignacio Buse is the pick to win this match.
Ignacio Buse -> 1.666
Rei Sakamoto -> 2.16

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Prediction and head to head Ignacio Buse vs. Rei Sakamoto

There is no head to head record between Ignacio Buse and Rei Sakamoto since this will be the first time that they will clash against each other in the main tour.

Ignacio Buse

Ignacio Buse

31 - 21win/loss

Hard
5-4
I Hard
1-2
Clay
25-14
Grass
0-1
Rank
105
High
105
LWWWWLWLWW
Year Total Hard Clay I.hard Grass Carpet
2025 49-28 6-5 42-19 1-3 0-1 0-0
2024 47-28 3-3 44-24 0-1 0-0 0-0
2023 35-19 7-3 28-16 0-0 0-0 0-0
2022 13-8 4-2 9-6 0-0 0-0 0-0
2021 0-4 0-0 0-4 0-0 0-0 0-0

Ranked no. 136, the Peruvian got to the qualifications after defeating Lukas Neumayer 7-6(2) 6-7(5) 6-1.

In the qualifications, Ignacio defeated Neumayer (7-62 6-75 6-1). During the match, Buse scored 118 points vs Neumayer’s 99. Ignacio was pretty aggressive to blast 54 winners.

Regarding the service games, Buse fired 9 aces and he committed only 4 double faults. Overall, Ignacio Buse was very efficient on serve to win 75% (54/72) of his 1st serve and 56% (19/34) on the second serve. However, this didn’t prevent his to concede the serve twice. Ignacio broke Neumayer 4 times after converting 50% of his break points (4/8).

Buse has a solid win-loss record in the last 7 years having won 60% of his matches (128-84). 4-4 on hard in 2025. Talking about his performance on the same surface of this competition, Buse has a compiled18-12 win-loss record in the last 7 years on hard.

His best result of the current season was winning the title the Heilbronn Challenger where he defeated Guy Den Ouden in the final 7-5 7-5.

Buse has an aggregate 30-21 win-loss record in 2025, 4-4 on hard (See FULL STATS).

Previously at the U.S. Open

Buse has never competed in this tournament before.

U.S. Open
Buse's Record

Rei Sakamoto

Rei Sakamoto

24 - 18win/loss

Hard
19-13
I Hard
2-2
Clay
3-3
Rank
176
High
174
WLWWLLLLWW
Year Total Hard Clay I.hard Grass Carpet
2025 30-26 23-16 3-3 4-7 0-0 0-0
2024 20-16 12-11 6-3 2-2 0-0 0-0
2023 7-11 1-4 5-5 1-2 0-0 0-0
2022 5-6 5-3 0-3 0-0 0-0 0-0

Ranked no. 200 (career-high), Sakamoto got to the qualifications after beating Tyler Zink 4-6 7-5 7-6(8).

In the qualifications against Zink, Sakamoto recovered from a 1-set down deficit before winning (4-6 7-5 7-68). During the match Sakamoto scored 126 points vs Zink’s 124. Rei was pretty aggressive to blast 40 winners.

Talking about serving, Sakamoto fired 9 aces and he committed only 9 double faults. Rei Sakamoto lost the serve 3 times and he saved 4 break points. Furthermore, Sakamoto put 58% of his first serves in, winning 66% (40/61) of the points behind his 1st serve and 62% (28/45) on the 2nd serve. Sakamoto broke Zink 3 times after converting 27% of his break points (3/11).

His best result of the current year was conquering the title the Cary Challenger where he beat Liam Draxl in the final 6-1 6-4.

Sakamoto has a compiled 24-17 win-loss record in 2025, 19-12 on hard (See FULL STATS).

U.S. Open
Sakamoto's Record

H2H Performance in the tournament

I.Buse
R.Sakamoto
2h:35
2h:35
Time on court​
2h:51
2h:51
!
2h:35
2h:35
Last match​
!
2h:51
2h:51
1
1
Match played
1
1
33
33
Games Played​
35
35
3
3
Set played​​
3
3
118
118
Total points​
126
126
118
118
Avg point​
126
126
54
54
Winners
40
40
54
54
Avg Winners​
40
40
46%
46%
Ratio winners
32%
32%
-- Serve --
9
9
Aces
9
9
9
9
Avg Aces
9
9
4
4
Double Faults
9
9
4
4
Avg Double Faults
!
9
9
54/72
54/72
1st won total​
40/61
40/61
!
75%
75%
1st won %
66%
66%
19/34
19/34
2nd won total​
28/45
28/45
56%
56%
2nd won %
!
62%
62%
-- Break Points --
4/8
4/8
BP won
3/11
3/11
4/8
4/8
Avg BP won
3/11
3/11
50%
50%
Won
!
27%
27%
6
6
Conceded
7
7
6
6
Avg Conceded
7
7
2
2
Broken
3
3
2
2
Avg Broken
3
3
4
4
Saved
4
4

Matches, sets, games and points

Points Buse Sakamoto
Match played 1 1
Tot Set 3 3
Tot Games 33 35
Pts 118-99 126-124
Total Points 217 250
Winners 54 40
%Winners 46% 32%

Both Buse and Sakamoto played 1 match. Also both players started their run from the qualifications.Both players lost a set in the event. Ignacio Buse lost 1 set, while Rei Sakamoto lost 1 set. Talking about their workload, Buse and Sakamoto have played the same amount of sets 3. However, Buse played 2 games less than Sakamoto. Buse scored 54 winners (46% of the total points). On the other side, The Japanese bagged 40 winners (32%).

Serve Performance

Serve Buse Sakamoto
Aces 9 9
Avg per match 9 9
1st in 72/106 61/106
%1st in 68% 58%
1st pts 54/72 40/61
%1st pts 75% 66%
2nd pts 19/34 28/45
%2nd pts 56% 62%

Buse managed to score 9 aces . Sakamoto managed to score 9 aces . Buse won 75% points behind his first serve. He pretty solid on his second serve to win 56% of the points. On the other side, Sakamoto won 66% of the points behind his first serve. He had a solid display on his second serve to win 62% of the points.

How they played the important points

Breaks Buse Sakamoto
Won 4 3
Converted 4/8 3/11
% Converted 50% 27%
Conceded 6 7
Saved 4 4
% Saved 67% 57%
Times Broken 2 3

The Peruvian broke his opponent 4 times with a 50% conversion rate. Buse dropped his serve twice and he saved 67% of the break points that he conceded. Sakamoto broke his opponent 3 times with a 27% conversion rate. The Japanese conceded his serve 3 times and he saved 57% of the break points that he conceded.

Buse
Q1
Neumayer
Total
Score 7-62 6-75 6-1
Tot Set 3 3
Tot Games 33 33
pts 118-99 118-99
Total points 217 217
Winners 54 54
%Winners 46% 46%
SERVE
Aces 9 9
Double Faults 4 4
1st in 72/106 72/106
% 1st in 68% 68%
1st pts 54/72 54/72
% 1st pts 75% 75%
2nd pts 19/34 19/34
% 2nd pts 56% 56%
Breaks
Won 4 4
Converted 4/8 4/8
Converted % 50% 50%
Conceded 6 6
Saved 4/6 4
Saved % 67% 67%
Times Broken 2 2
Sakamoto
Q1
Zink
Total
Score 4-6 7-5 7-68
Tot Set 3 3
Tot Games 35 35
pts 126-124 126-124
Total points 250 250
Winners 40 40
%Winners 32% 32%
SERVE
Aces 9 9
Double Faults 9 9
1st in 61/106 61/106
% 1st in 58% 58%
1st pts 40/61 40/61
% 1st pts 66% 66%
2nd pts 28/45 28/45
% 2nd pts 62% 62%
Breaks
Won 3 3
Converted 3/11 3/11
Converted % 27% 27%
Conceded 7 7
Saved 4/7 4
Saved % 57% 57%
Times Broken 3 3

Tennis Scores – U.S. Open

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