Kei Nishikori and Sanhui Shin will square off in the 2^nd round of the Yokohama Challenger for the 1^st time in their career. They are scheduled to play on Thursday at 1:30 pm on COURT 1. In the following lines you can find the head to head analysis and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Kei Nishikori who should win in 2 sets.

As per the initial odds, Kei Nishikori is the pick to win this match.
Kei Nishikori -> 1.183
Sanhui Shin -> 4.15

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Prediction and head to head Kei Nishikori vs. Sanhui Shin

There is no head to head record between Kei Nishikori and Sanhui Shin since this will be the first time that they will fight against each other in the main tour.

Kei Nishikori

Ranked no. 158, Nishikori got to the 2^nd round after defeating Taisei Ichikawa 4-6 6-1 6-1.

In the 1^st round against Ichikawa, The Japanese recovered from a 1-set down deficit before winning (4-6 6-1 6-1). During the match, Nishikori scored 80 points vs Ichikawa’s 62. Kei was exceptionally aggressive to blast 37 winners.

Regarding the service games, Nishikori scored 2 aces and he committed only 2 double faults. Kei Nishikori lost the serve once and he saved 2 break points. Furthermore, Nishikori put 65% of his first serves in, winning 82% (37/45) of the points behind his 1st serve and 38% (9/24) on the 2nd serve. Nishikori was clinical in his return game without wasting any break point and break Ichikawa 5 times.

Nishikori has a solid record in the last 10 years having won 67% of his matches (237-116). 10-6 on hard in 2025. Regarding his performance on the same surface of this event, Nishikori has a composed 110-54 match record in the last years on hard.

The Japanese’s best result of the current season was getting to the final in Hong Kong.

Nishikori has an overall 14-11 win-loss record in 2025, 10-6 on hard (See FULL STATS).

Previously in the Yokohama Challenger

Kei has never competed in this tournament before.

Sanhui Shin

Ranked no. 374, the Korean reached the 2^nd round after beating Lennon Roark Jones 3-6 6-1 6-2.

In the 1^st round against Roark Jones, Sanhui recovered from a 1-set down deficit before winning (3-6 6-1 6-2). During the match Shin scored 90 points vs Roark Jones’s 77. Shin was quite aggressive to blast 35 winners.

About the serving games, Shin scored just 1 ace during the entire match and he was quite steady in conceding no double faults for the entire match. Sanhui Shin lost the serve 3 times and he saved 5 break points. Furthermore, Shin put 71% of his first serves in, winning 60% (35/58) of the points behind his 1st serve and 50% (12/24) on the 2nd serve. Sanhui broke Roark Jones 6 times after converting 40% of his break points (6/15).

The Korean’s best result of the current season was getting to the final in M25 Anning,M15 Andong,M25 Changwon and M15 Wuning.

Sanhui has an overall 52-27 win-loss record in 2025, 38-20 on hard (See FULL STATS).

H2H Performance in the tournament

Matches, sets, games and points

Points	Nishikori	Shin
Match played	1	1
Tot Set	3	3
Tot Games	24	24
Pts	80-62	90-77
Total Points	142	167
Winners	37	35
%Winners	46%	39%

Both Nishikori and Shin played 1 match. Both players lost a set in the event. Kei Nishikori lost 1 set, while Sanhui Shin lost 1 set. Talking about their workload, Nishikori and Shin have played the same amount of sets 3. They also played the same amount of games (24). Kei scored 37 winners (46% of the total points). On the other side, Sanhui struck 35 winners (39%).

Serve Performance

Serve	Nishikori	Shin
Aces	2	1
Avg per match	2	1
1st in	45/69	58/82
%1st in	65%	71%
1st pts	37/45	35/58
%1st pts	82%	60%
2nd pts	9/24	12/24
%2nd pts	38%	50%

Nishikori fired 2 aces . Shin struck 1 ace . Nishikori won 82% points on his first serve. He very solid his second serve to win 38% of the points. On the other side, Shin won 60% of the points behind his first serve. He had a solid display on his second serve to win 50% of the points.

How they played the important points

Breaks	Nishikori	Shin
Won	5	6
Converted	5/5	6/15
% Converted	100%	40%
Conceded	3	8
Saved	2	5
% Saved	67%	63%
Times Broken	1	3

Kei broke his opponent 5 times with a 100% conversion rate. Nishikori dropped his serve once and he saved 67% of the break points that he conceded. Shin broke his opponent 6 times with a 40% conversion rate. Shin conceded his serve 3 times and he saved 63% of the break points that he conceded.

Nishikori
	R1 Ichikawa	Total
Score	4-6 6-1 6-1
Tot Set	3	3
Tot Games	24	24
pts	80-62	80-62
Total points	142	142
Winners	37	37
%Winners	46%	46%
SERVE
Aces	2	2
Double Faults	2	2
1st in	45/69	45/69
% 1st in	65%	65%
1st pts	37/45	37/45
% 1st pts	82%	82%
2nd pts	9/24	9/24
% 2nd pts	38%	38%
Breaks
Won	5	5
Converted	5/5	5/5
Converted %	100%	100%
Conceded	3	3
Saved	2/3	2
Saved %	67%	67%
Times Broken	1	1

Shin
	R1 Roark	Total
Score	3-6 6-1 6-2
Tot Set	3	3
Tot Games	24	24
pts	90-77	90-77
Total points	167	167
Winners	35	35
%Winners	39%	39%
SERVE
Aces	1	1
Double Faults	0	0
1st in	58/82	58/82
% 1st in	71%	71%
1st pts	35/58	35/58
% 1st pts	60%	60%
2nd pts	12/24	12/24
% 2nd pts	50%	50%
Breaks
Won	6	6
Converted	6/15	6/15
Converted %	40%	40%
Conceded	8	8
Saved	5/8	5
Saved %	63%	63%
Times Broken	3	3

Tennis Scores in Yokohama Challenger

• Akira SantillanSantillan – Kaylan BigunBigun (6-3 6-1) – Stats, scores, rankings
• Rei SakamotoSakamoto – Maxim ZhukovZhukov (6-1 6-2) – Stats, scores, rankings
• Yusuke KusuharaKusuhara – Yuta ShimizuShimizu (6-3 6-3) – Stats, scores, rankings
• Yasutaka UchiyamaUchiyama – Michael VrbenskyVrbensky (6-3 6-3) – Stats, scores, rankings

Upcoming matches in the draw

• Kei NishikoriNishikori – Sanhui ShinShin (0-0) – H2H and prediction
• Yasutaka UchiyamaUchiyama – (1-0) – H2H and prediction
• Igor Ribeiro MarcondesRibeiro Marcondes – Yuki MochizukiMochizuki (0-0) – H2H and prediction
• Hikaru ShiraishiShiraishi – Neil OberleitnerOberleitner (1-0) – H2H and prediction