Kasidit Samrej and Yuki Mochizuki will square off in the 1^st round of the Seoul Challenger for the 4^th time in their career. They are scheduled to play on Tuesday at 4:00 pm on COURT 2. Here the head to head stats and relative prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Kasidit Samrej who should win in 3 sets.

As per the initial odds, Kasidit Samrej is the pick to win this match.
Kasidit Samrej -> 1.54
Yuki Mochizuki -> 2.36

Click here to see the updated quotes and live streaming (only selected countries - USA excluded).

To be able to watch live streaming bet365, a funded account is required or you need to have placed a bet in the last 24 hours. 18+ BeGambleAware.

Here where top tennis events are broadcasted or streamed online (ATP, WTA).

At the challenger level, there will be free live streaming on Challenger TV.

 

Prediction and head to head Kasidit Samrej vs. Yuki Mochizuki

This will be the 4^th time that Kasidit Samrej and Yuki Mochizuki play each other. The head to head is 2-1 for Mochizuki (see full H2H stats), 2-1 on hard.

The last time that they fought against each other, Mochizuki won 4-6 6-4 6-4 in the quarter in M15 Nakhon Pathom back in July 2025.

Kasidit Samrej

Ranked no. 408, the Thai reached the 1^st round after defeating Duckhee Lee 6-1 6-3 and Takuya Kumasaka 6-2 6-1.

In the qualifications, The Thai had a good straight sets win against Kumasaka (6-2 6-1). During the match, Samrej scored 63 points vs Kumasaka’s 42. The Thai was very aggressive to blast 23 winners.

Regarding the service games, Samrej managed to score 2 aces and he was exceptionally steady in conceding no double faults. Kasidit Samrej lost the serve once and he saved 2 break points. Furthermore, Samrej put 59% of his first serves in, winning 68% (23/34) of the points behind his 1st serve and 54% (13/24) on the 2nd serve. Samrej broke Kumasaka 5 times after converting 50% of his break points (5/10).

Overall Performance in this tournament

Kasidit started his run at this tournament from the qualifications. In the main draw, he hasn’t conceded yet a set in this competition to win 62% of the points he played.

Samrej has a winning win-loss record in the last 9 years having won 57% of his matches (152-113). 26-24 on hard in 2025. Talking about his performance on the same surface of this tournament, Samrej has an aggregate130-105 record in the last 9 years on hard.

Kasidit’s best result of the current year was getting to the final in M15 Maanshan and M15 Singapore.

The Thai has a composed 44-27 win-loss record in 2025, 26-24 on hard (See FULL STATS).

Previously in the Seoul Challenger

Yuki Mochizuki

Ranked no. 520, Yuki reached the 1^st round after defeating Alexander Bravo 6-2 6-2 and Yunseong Chung 6-4 6-4.

In the qualifications, Mochizuki had a good straight sets win against Chung (6-4 6-4). During the match Mochizuki scored 64 points vs Chung’s 54. The Japanese was quite aggressive to blast 23 winners.

Talking about serving, Mochizuki struck 4 aces and he was extremely consistent in conceding no double faults for the entire match. Yuki Mochizuki lost the serve twice and he saved 2 break points. Furthermore, Mochizuki put 64% of his first serves in, winning 62% (23/37) of the points behind his 1st serve and 71% (15/21) on the 2nd serve. Mochizuki broke Chung 4 times after converting 50% of his break points (4/8).

Overall Performance in this tournament

Yuki started his run at this tournament from the qualifications. In the main draw, he hasn’t surrendered yet a set in this competition to win 58% of the points he played.

Mochizuki’s best result of the current season was reaching the final in M15 Osaka and M25 Taipei.

The Japanese has an aggregate 29-19 win-loss record in 2025, 23-13 on hard (See FULL STATS).

Previously in the Seoul Challenger

Previously, his best result was reaching the qualifications in 2023. See his history.

H2H Performance in the tournament

Matches, sets, games and points

Points	Samrej	Mochizuki
Match played	2	2
Tot Set	4	4
Tot Games	31	36
Pts	128-80	136-99
Total Points	208	235
Winners	44	47
%Winners	34%	35%

Both Samrej and Mochizuki played 2 matches. Also both players started their run from the qualifications.Both players have not dropped a single set in this event so far. Talking about their workload, Samrej and Mochizuki have played the same amount of sets 4. However, Samrej played 5 games less than Mochizuki. The Thai scored 44 winners (34% of the total points). On the other side, Mochizuki scored 47 winners (35%).

Serve Performance

Serve	Samrej	Mochizuki
Aces	5	6
Avg per match	2.5	3
1st in	62/106	67/107
%1st in	58%	63%
1st pts	44/62	47/67
%1st pts	71%	70%
2nd pts	25/44	28/40
%2nd pts	57%	70%

Samrej bagged 5 aces (2.5 per match). Mochizuki made 6 aces (3 per match). Samrej won 71% points on his first serve. He pretty solid on his second serve to win 57% of the points. On the other side, Mochizuki won 70% of the points behind his first serve. He had a solid display on his second serve to win 70% of the points.

How they played the important points

Breaks	Samrej	Mochizuki
Won	10	8
Converted	10/19	8/19
% Converted	53%	42%
Conceded	6	7
Saved	4	5
% Saved	67%	71%
Times Broken	2	2

The Thai broke his opponents 10 times with a 53% conversion rate. The Thai lost his serve twice and he saved 67% of the break points that he conceded. Mochizuki broke his opponents 8 times with a 42% conversion rate. Yuki conceded his serve twice and he saved 71% of the break points that he conceded.

Samrej
	Q1 Hee Lee	Q3 Kumasaka	Total
Score	6-1 6-3	6-2 6-1
Tot Set	2	2	4
Tot Games	16	15	31
pts	65-38	63-42	128-80
Total points	103	105	208
Winners	21	23	44
%Winners	32%	37%	34%
SERVE
Aces	3	2	5
Double Faults	2	0	2
1st in	28/48	34/58	62/106
% 1st in	58%	59%	58%
1st pts	21/28	23/34	44/62
% 1st pts	75%	68%	71%
2nd pts	12/20	13/24	25/44
% 2nd pts	60%	54%	57%
Breaks
Won	5	5	10
Converted	5/9	5/10	10/19
Converted %	56%	50%	53%
Conceded	3	3	6
Saved	2/3	2/3	4
Saved %	67%	67%	67%
Times Broken	1	1	2

Mochizuki
	Q1 Bravo	Q3 Chung	Total
Score	6-2 6-2	6-4 6-4
Tot Set	2	2	4
Tot Games	16	20	36
pts	72-45	64-54	136-99
Total points	117	118	235
Winners	24	23	47
%Winners	33%	36%	35%
SERVE
Aces	2	4	6
Double Faults	2	0	2
1st in	30/49	37/58	67/107
% 1st in	61%	64%	63%
1st pts	24/30	23/37	47/67
% 1st pts	80%	62%	70%
2nd pts	13/19	15/21	28/40
% 2nd pts	68%	71%	70%
Breaks
Won	4	4	8
Converted	4/11	4/8	8/19
Converted %	36%	50%	42%
Conceded	3	4	7
Saved	3/3	2/4	5
Saved %	100%	50%	75%
Times Broken	0	2	2

Tennis Scores in Seoul Challenger

• Oliver CrawfordCrawford – Henrique RochaRocha (6-1 6-4) – Stats, scores, rankings
• Sho ShimabukuroShimabukuro – Omar JasikaJasika (6-3 5-7 7-6⁴) – Stats, scores, rankings
• Chak Lam Coleman WongLam Coleman Wong – Hyeon ChungChung (6-3 6-2) – Stats, scores, rankings
• Rio NoguchiNoguchi – James DuckworthDuckworth (1-6 7-5 6-3) – Stats, scores, rankings

Upcoming matches in the draw

• Frederico Ferreira SilvaFerreira Silva – Garrett JohnsJohns (0-0) – H2H and prediction
• Taro DanielDaniel – Yasutaka UchiyamaUchiyama (2-0) – H2H and prediction
• Renta TokudaTokuda – Elias YmerYmer (0-1) – H2H and prediction
• Jurij RodionovRodionov – (0-0) – H2H and prediction
• Uisung ParkPark – Bu YunchaoketeYunchaokete (0-0) – H2H and prediction
• Sanhui ShinShin – (0-0) – H2H and prediction
• Duje AjdukovicAjdukovic – Yu Hsiou HsuHsiou Hsu (0-0) – H2H and prediction
• Yuta ShimizuShimizu – Masamichi ImamuraImamura (3-0) – H2H and prediction
• Rio NoguchiNoguchi – Sho ShimabukuroShimabukuro (3-1) – H2H and prediction
• Kasidit SamrejSamrej – Yuki MochizukiMochizuki (1-2) – H2H and prediction
• Woobin ShinShin – Marc-Andrea HueslerHuesler (0-0) – H2H and prediction