Naoki Nakagawa

and Sanhui Shin will play each other in the qualifications of the Busan Challenger for the 2^nd time in their career. They are scheduled to compete on Tuesday at 10:00 am on CENTRE COURT. Here the head to head stats and relative prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Naoki Nakagawa who should win in 3 sets.

As per the initial odds, Naoki Nakagawa is the pick to win this match.
Naoki Nakagawa -> 1.666
Sanhui Shin -> 2.11

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Prediction and head to head Naoki Nakagawa vs. Sanhui Shin

This will be the 2^nd time that Naoki Nakagawa and Sanhui Shin clash against each other. The head to head is 1-0 for Nakagawa (see full H2H stats), 1-0 on hard.

The last time that they competed against each other, Nakagawa won 3-6 6-4 6-3 in the qualifications in the Nonthaburi 2 Challenger back in January 2025.

Naoki Nakagawa

Ranked no. 356, the Japanese got to the qualifications after beating Evgeny Karlovskiy 2-6 6-3 6-2.

In the qualifications against Karlovskiy, Nakagawa recovered from a 1-set down deficit before winning (2-6 6-3 6-2). During the match, Nakagawa scored 85 points vs Karlovskiy’s 82. Nakagawa was very aggressive to blast 31 winners.

Regarding the service games, Nakagawa fired 3 aces and he committed only 1 double fault. Naoki Nakagawa lost the serve 3 times and he saved 11 break points. Furthermore, Nakagawa put 51% of his first serves in, winning 66% (31/47) of the points behind his 1st serve and 51% (23/45) on the 2nd serve. The Japanese broke Karlovskiy 4 times after converting 67% of his break points (4/6).

Nakagawa has a solid win-loss record in the last 10 years having won 60% of his matches (275-183). 6-6 on hard in 2025. In connection with his performance on the same surface of this competition, Nakagawa has a compiled 177-114 match record in the last years on hard.

Nakagawa’s best result of the year was getting to the semifinal in M25 Timaru.

Naoki has an aggregate 6-7 win-loss record in 2025, 6-6 on hard (See FULL STATS).

Previously in the Busan Challenger

Sanhui Shin

Ranked no. 653, Shin got to the qualifications after defeating Yan Bai 6-3 6-2.

In the qualifications, Shin had a good straight sets win against Bai (6-3 6-2). During the match Shin scored 65 points vs Bai’s 48. The Korean was quite aggressive to blast 33 winners.

Talking about serving, Shin scored just 1 ace during the entire match and he committed only 2 double faults. Sanhui Shin lost the serve once and he saved 3 break points. Furthermore, Shin put 70% of his first serves in, winning 77% (33/43) of the points behind his 1st serve and 33% (6/18) on the 2nd serve. Shin broke Bai 4 times after converting 80% of his break points (4/5).

Sanhui’s best result of the current year was getting to the semifinal in M25 Launceston.

Shin has a composed 6-7 win-loss record in 2025, 6-6 on hard (See FULL STATS).

Previously in the Busan Challenger

Previously, his best result was reaching the qualifications in 2024. See his history.

H2H Performance in the tournament

Matches, sets, games and points

Points	Nakagawa	Shin
Match played	1	1
Tot Set	3	2
Tot Games	25	17
Pts	85-82	65-48
Total Points	167	113
Winners	31	33
%Winners	36%	51%

Both Nakagawa and Shin played 1 match. Also both players started their run from the qualifications.At the moment, Naoki Nakagawa conceded 1 set while Sanhui Shin hasn’t dropped a set so far. Nakagawa has played 1 set more than Shin (3 vs 2). Therefore, Nakagawa played 8 games more than Shin. Nakagawa scored 31 winners (36% of the total points). On the other side, Sanhui blasted 33 winners (51%).

Serve Performance

Serve	Nakagawa	Shin
Aces	3	1
Avg per match	3	1
1st in	47/92	43/61
%1st in	51%	70%
1st pts	31/47	33/43
%1st pts	66%	77%
2nd pts	23/45	6/18
%2nd pts	51%	33%

Nakagawa blasted 3 aces . Shin scored 1 ace . Nakagawa won 66% points behind his first serve. He pretty solid on his second serve to win 51% of the points. On the other side, Shin won 77% of the points behind his first serve. He had a solid display on his second serve to win 33% of the points.

How they played the important points

Breaks	Nakagawa	Shin
Won	4	4
Converted	4/6	4/5
% Converted	67%	80%
Conceded	14	4
Saved	11	3
% Saved	79%	75%
Times Broken	3	1

Naoki broke his opponent 4 times with a 67% conversion rate. The Japanese lost his serve 3 times and he saved 79% of the break points that he conceded. The Korean broke his opponent 4 times with a 80% conversion rate. Shin conceded his serve once and he saved 75% of the break points that he conceded.

Nakagawa
	Q1 Karlovskiy	Total
Score	2-6 6-3 6-2
Tot Set	3	3
Tot Games	25	25
pts	85-82	85-82
Total points	167	167
Winners	31	31
%Winners	36%	36%
SERVE
Aces	3	3
Double Faults	1	1
1st in	47/92	47/92
% 1st in	51%	51%
1st pts	31/47	31/47
% 1st pts	66%	66%
2nd pts	23/45	23/45
% 2nd pts	51%	51%
Breaks
Won	4	4
Converted	4/6	4/6
Converted %	67%	67%
Conceded	14	14
Saved	11/14	11
Saved %	79%	79%
Times Broken	3	3

Shin
	Q1 Bai	Total
Score	6-3 6-2
Tot Set	2	2
Tot Games	17	17
pts	65-48	65-48
Total points	113	113
Winners	33	33
%Winners	51%	51%
SERVE
Aces	1	1
Double Faults	2	2
1st in	43/61	43/61
% 1st in	70%	70%
1st pts	33/43	33/43
% 1st pts	77%	77%
2nd pts	6/18	6/18
% 2nd pts	33%	33%
Breaks
Won	4	4
Converted	4/5	4/5
Converted %	80%	80%
Conceded	4	4
Saved	3/4	3
Saved %	75%	75%
Times Broken	1	1

Tennis Scores in Busan Challenger

• Ilia SimakinSimakin – Duckhee LeeLee (6-2 6-2) – Stats, scores, rankings

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