Rei Sakamoto and Kaichi Uchida will play each other in the final of the Yokohama Challenger for the 2^nd time in their career. They are scheduled to compete on Sunday at 12:00 pm on COURT 3. In the following paragraphs, you can find the head to head analysis and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Rei Sakamoto who should win in 3 sets.

As per the initial odds, Rei Sakamoto is the pick to win this match.
Rei Sakamoto -> 1.53
Kaichi Uchida -> 2.31

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Prediction and head to head Rei Sakamoto vs. Kaichi Uchida

This will be the 2^nd time that Rei Sakamoto and Kaichi Uchida face off. The head to head is 1-0 for Sakamoto (see full H2H stats), 1-0 on hard.

The last time that they played, Sakamoto won 6-4 7-6(3) in the quarter in the Yokkaichi Challenger back in 2024.

Rei Sakamoto

Ranked no. 176, Rei got to the final after beating Kasidit Samrej 6-4 7-6(1), Maxim Zhukov 6-1 6-2, Yasutaka Uchiyama 3-6 6-3 6-4 and Akira Santillan 3-6 6-1 6-3.

In the semifinal against Santillan, Sakamoto recovered from a 1-set down deficit before winning (3-6 6-1 6-3). During the match, Sakamoto scored 91 points vs Santillan’s 75. The Japanese was quite aggressive to blast 31 winners.

Talking about the service games, Sakamoto managed to score 5 aces and he committed only 3 double faults. Rei Sakamoto lost the serve 3 times and he saved 3 break points. Furthermore, Sakamoto put 63% of his first serves in, winning 67% (31/46) of the points behind his 1st serve and 52% (14/27) on the 2nd serve. Sakamoto broke Santillan 6 times after converting 75% of his break points (6/8).

Overall Performance in this tournament

The Japanese has surrendered 2 set in this event to win 56% of the points he played.

Sakamoto has a winning match record in the last 4 years having won 52% of his matches (65-59). 26-16 on hard in 2025. In connection with his performance on the same surface of this event, Sakamoto has an aggregate44-34 win-loss record in the last 4 years on hard.

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

The Japanese has a composed 33-26 win-loss record in 2025, 26-16 on hard (See FULL STATS).

Previously in the Yokohama Challenger

Kaichi Uchida

Ranked no. 288, Kaichi reached the final after beating Hyeon Chung 6-3 6-0, Ryotaro Taguchi 7-5 6-4, Kei Nishikori 6-2 6-2 and Igor Ribeiro Marcondes 6-4 6-2.

In the semifinal, The Japanese had a good straight sets win against Ribeiro Marcondes (6-4 6-2). During the match Uchida scored 63 points vs Ribeiro Marcondes’s 45. Uchida was exceptionally aggressive to blast 24 winners.

About the serving games, Uchida recorded 10 aces and he committed only 1 double fault for the entire match. Kaichi Uchida was exceptionally effective on serve to win 86% (24/28) of his 1st serve and 65% (13/20) on the second serve. This was the main reason for not conceding a single break during the match. The Japanese broke Ribeiro Marcondes 3 times after converting 30% of his break points (3/10).

Overall Performance in this tournament

Kaichi hasn’t dropped yet a set in the tournament to win 59% of the points he played.

Uchida’s best result of the year was reaching the final in M15 Nakhon Pathom,M25 Sapporo,M25 Takasaki and M25 Perth.

Uchida has a composed 47-30 win-loss record in 2025, 39-20 on hard (See FULL STATS).

Previously in the Yokohama Challenger

Previously, his best result was reaching the quarter in 2022. See his history.

H2H Performance in the tournament (main draw)

Matches, sets, games and points

Points	Sakamoto	Uchida
Match played	4	4
Tot Set	10	8
Tot Games	91	71
Pts	319-250	251-178
Total Points	569	429
Winners	137	104
%Winners	43%	41%

Both Sakamoto and Uchida played 4 matches. At the moment, Rei Sakamoto dropped 2 sets while Kaichi Uchida hasn’t lost a set so far. Sakamoto has played 2 sets more than Uchida (10 vs 8). Therefore, Sakamoto played 20 games more than Uchida. Rei scored 137 winners (43% of the total points). On the other side, The Japanese made 104 winners (41%).

Serve Performance

Serve	Sakamoto	Uchida
Aces	32	36
Avg per match	8	9
1st in	175/265	129/216
%1st in	66%	60%
1st pts	137/175	104/129
%1st pts	78%	81%
2nd pts	49/90	53/87
%2nd pts	54%	61%

Sakamoto fired 32 aces (8 per match). Uchida fired 36 aces (9 per match). Sakamoto won 78% points on his first serve. He quite strong on his second serve to win 54% of the points. On the other side, Uchida won 81% of the points on his first serve. He had a solid display on his second serve to win 61% of the points.

How they played the important points

Breaks	Sakamoto	Uchida
Won	15	14
Converted	15/28	14/28
% Converted	54%	50%
Conceded	21	18
Saved	15	17
% Saved	71%	94%
Times Broken	6	1

Sakamoto broke his opponents 15 times with a 54% conversion rate. Rei conceded his serve 6 times and he saved 71% of the break points that he conceded. The Japanese broke his opponents 14 times with a 50% conversion rate. The Japanese conceded his serve once and he saved 94% of the break points that he conceded.

Sakamoto
	R1 Samrej	R2 Zhukov	1/4 Uchiyama	1/2 Santillan	Total
Score	6-4 7-61	6-1 6-2	3-6 6-3 6-4	3-6 6-1 6-3
Tot Set	2	2	3	3	10
Tot Games	23	15	28	25	91
pts	74-57	63-39	91-79	91-75	319-250
Total points	131	102	170	166	569
Winners	35	27	44	31	137
%Winners	47%	43%	48%	34%	43%
SERVE
Aces	13	5	9	5	32
Double Faults	0	3	3	3	9
1st in	40/56	32/53	57/83	46/73	175/265
% 1st in	71%	60%	69%	63%	66%
1st pts	35/40	27/32	44/57	31/46	137/175
% 1st pts	88%	84%	77%	67%	78%
2nd pts	10/16	10/21	15/26	14/27	49/90
% 2nd pts	63%	48%	58%	52%	54%
Breaks
Won	2	4	3	6	15
Converted	2/6	4/7	3/7	6/8	15/28
Converted %	33%	57%	43%	75%	54%
Conceded	2	5	8	6	21
Saved	1/2	5/5	6/8	3/6	15
Saved %	50%	100%	75%	50%	69%
Times Broken	1	0	2	3	6

Uchida
	R1 Chung	R2 Taguchi	1/4 Nishikori	1/2 Ribeiro Marcondes	Total
Score	6-3 6-0	7-5 6-4	6-2 6-2	6-4 6-2
Tot Set	2	2	2	2	8
Tot Games	15	22	16	18	71
pts	61-35	68-62	59-36	63-45	251-178
Total points	96	130	95	108	429
Winners	22	38	20	24	104
%Winners	36%	56%	34%	38%	41%
SERVE
Aces	5	11	10	10	36
Double Faults	2	1	2	1	6
1st in	29/48	47/75	25/45	28/48	129/216
% 1st in	60%	63%	56%	58%	60%
1st pts	22/29	38/47	20/25	24/28	104/129
% 1st pts	76%	81%	80%	86%	81%
2nd pts	11/19	14/28	15/20	13/20	53/87
% 2nd pts	58%	50%	75%	65%	61%
Breaks
Won	5	2	4	3	14
Converted	5/10	2/3	4/5	3/10	14/28
Converted %	50%	67%	80%	30%	50%
Conceded	4	10	3	1	18
Saved	3/4	10/10	3/3	1/1	17
Saved %	75%	100%	100%	100%	94%
Times Broken	1	0	0	0	1

Upcoming matches in the draw

• Kaichi UchidaUchida – (0-1) – H2H and prediction