Oliver Crawford and Kokoro Isomura will clash against each other in the semifinal of the Zhangjiagang Challenger for the 1^st time in their career. They are scheduled to play on Saturday at 5:30 pm on CENTRE COURT. In this post, we analyze their head to head performance and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Oliver Crawford who should win in 2 sets.

As per the initial odds, Oliver Crawford is the pick to win this match.
Oliver Crawford -> 1.33
Kokoro Isomura -> 3.1

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Prediction and head to head Oliver Crawford vs. Kokoro Isomura

There is no head to head record between Oliver Crawford and Kokoro Isomura since this will be the first time that they will face off in the main tour.

Oliver Crawford

Ranked no. 230, Oliver got to the semifinal after defeating Masamichi Imamura 6-3 6-2, Hiroki Moriya 6-3 4-6 6-4 and Renta Tokuda 7-6(1) 3-6 6-2.

In the quarter, Crawford defeated Tokuda (7-6¹ 3-6 6-2). During the match, Crawford scored 103 points vs Tokuda’s 90. Oliver was pretty aggressive to blast 45 winners.

Talking about the service games, Crawford managed to score 5 aces and he committed only 3 double faults. Oliver Crawford lost the serve 4 times and he saved 5 break points. Furthermore, Crawford put 63% of his first serves in, winning 70% (45/64) of the points behind his 1st serve and 47% (18/38) on the 2nd serve. Crawford broke Tokuda 5 times after converting 56% of his break points (5/9).

Overall Performance in this tournament

The American has dropped 2 set in this tournament to conquer 54% of the points he played.

Crawford has a solid record in the last 10 years having won 69% of his matches (318-142). 40-8 on hard in 2025. Regarding his performance on the same surface of this event, Crawford has a compiled 133-53 match record in the last years on hard.

Crawford’s best result of the season was getting to the final in M25 Chennai,M15 Zahra,M15 Villena,M25 Luan,M25 Shenzhen,M25 Bengaluru and M25 Sabadell.

The American has a composed 56-17 win-loss record in 2025, 40-8 on hard (See FULL STATS).

Previously in the Zhangjiagang Challenger

Crawford has never competed in this tournament before.

Kokoro Isomura

Ranked no. 480, the Japanese got to the semifinal after defeating Sergey Fomin 6-3 6-2, Jie Cui 3-6 6-2 7-6(9) and Sanhui Shin 2-6 6-2 6-4.

In the quarter against Shin, Isomura recovered from a 1-set down deficit before winning (2-6 6-2 6-4). During the match Isomura scored 88 points vs Shin’s 82. Isomura was quite aggressive to blast 36 winners.

Talking about serving, Isomura managed to score 3 aces and he committed only 4 double faults. Kokoro Isomura lost the serve 3 times and he saved 3 break points. Furthermore, Isomura put 63% of his first serves in, winning 73% (36/49) of the points behind his 1st serve and 48% (14/29) on the 2nd serve. The Japanese broke Shin 4 times after converting 44% of his break points (4/9).

Overall Performance in this tournament

Isomura has conceded 2 set in the tournament to win 52% of the points he played.

Isomura’s best result of the year was reaching the final in M15 Luan.

Kokoro has an overall 26-21 win-loss record in 2025, 24-20 on hard (See FULL STATS).

H2H Performance in the tournament (main draw)

Matches, sets, games and points

Points	Crawford	Isomura
Match played	3	3
Tot Set	8	8
Tot Games	76	73
Pts	269-228	251-229
Total Points	497	480
Winners	112	109
%Winners	42%	43%

Both Crawford and Isomura played 3 matches. Both players lost a set in the event. Oliver Crawford dropped 2 sets, while Kokoro Isomura lost 2 sets. Talking about their workload, Crawford and Isomura have played the same amount of sets 8. However, Crawford played 3 games more than Isomura. Crawford scored 112 winners (42% of the total points). On the other side, The Japanese scored 109 winners (43%).

Serve Performance

Serve	Crawford	Isomura
Aces	18	20
Avg per match	6	6.7
1st in	164/272	145/244
%1st in	60%	59%
1st pts	112/164	109/145
%1st pts	68%	75%
2nd pts	54/108	46/99
%2nd pts	50%	46%

Crawford managed to score 18 aces (6 per match). Isomura blasted 20 aces (6.7 per match). Crawford won 68% points on his first serve. He quite strong on his second serve to win 50% of the points. On the other side, Isomura won 75% of the points behind his first serve. He had a solid display on his second serve to win 46% of the points.

How they played the important points

Breaks	Crawford	Isomura
Won	15	11
Converted	15/26	11/19
% Converted	58%	58%
Conceded	25	21
Saved	15	14
% Saved	60%	67%
Times Broken	10	7

The American broke his opponents 15 times with a 58% conversion rate. Oliver surrendered his serve 10 times and he saved 60% of the break points that he conceded. Kokoro broke his opponents 11 times with a 58% conversion rate. The Japanese conceded his serve 7 times and he saved 67% of the break points that he conceded.

Crawford
	R1 Imamura	R2 Moriya	1/4 Tokuda	Total
Score	6-3 6-2	6-3 4-6 6-4	7-61 3-6 6-2
Tot Set	2	3	3	8
Tot Games	17	29	30	76
pts	64-46	102-92	103-90	269-228
Total points	110	194	193	497
Winners	28	39	45	112
%Winners	44%	38%	44%	42%
SERVE
Aces	5	8	5	18
Double Faults	2	2	3	7
1st in	34/59	66/111	64/102	164/272
% 1st in	58%	59%	63%	60%
1st pts	28/34	39/66	45/64	112/164
% 1st pts	82%	59%	70%	68%
2nd pts	14/25	22/45	18/38	54/108
% 2nd pts	56%	49%	47%	50%
Breaks
Won	3	7	5	15
Converted	3/7	7/10	5/9	15/26
Converted %	43%	70%	56%	58%
Conceded	3	13	9	25
Saved	3/3	7/13	5/9	15
Saved %	100%	54%	56%	70%
Times Broken	0	6	4	10

Isomura
	R1 Fomin	R2 Cui	1/4 Shin	Total
Score	6-3 6-2	3-6 6-2 7-69	2-6 6-2 6-4
Tot Set	2	3	3	8
Tot Games	17	30	26	73
pts	60-44	103-103	88-82	251-229
Total points	104	206	170	480
Winners	28	45	36	109
%Winners	47%	44%	41%	43%
SERVE
Aces	8	9	3	20
Double Faults	6	9	4	19
1st in	33/58	63/108	49/78	145/244
% 1st in	57%	58%	63%	59%
1st pts	28/33	45/63	36/49	109/145
% 1st pts	85%	71%	73%	75%
2nd pts	13/25	19/45	14/29	46/99
% 2nd pts	52%	42%	48%	46%
Breaks
Won	3	4	4	11
Converted	3/5	4/5	4/9	11/19
Converted %	60%	80%	44%	58%
Conceded	4	11	6	21
Saved	4/4	7/11	3/6	14
Saved %	100%	64%	50%	71%
Times Broken	0	4	3	7

Tennis Scores in Zhangjiagang Challenger

• Sho ShimabukuroShimabukuro – Ilia SimakinSimakin (6-4 6-3) – See score progression
• Yasutaka UchiyamaUchiyama – Kaichi UchidaUchida (6-3 6-4) – See score progression
• Oliver CrawfordCrawford – Renta TokudaTokuda (7-6¹ 3-6 6-2) – See score progression
• Kokoro IsomuraIsomura – Sanhui ShinShin (2-6 6-2 6-4) – See score progression

Upcoming matches in the draw

• Sho ShimabukuroShimabukuro – Yasutaka UchiyamaUchiyama (2-2) – H2H and prediction
• Oliver CrawfordCrawford – (0-0) – H2H and prediction