Chak Lam Coleman Wong and Yi Zhou will fight against each other in the semifinal of the Seoul Challenger for the 1st time in their career. They are scheduled to play on Saturday at 12:00 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 Chak Lam Coleman Wong who should win in 3 sets.

As per the initial odds, Chak Lam Coleman Wong is the pick to win this match.
Chak Lam Coleman Wong -> 1.57
Yi Zhou -> 2.22

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Prediction and head to head Chak Lam Coleman Wong vs. Yi Zhou

There is no head to head record between Chak Lam Coleman Wong and Yi Zhou since this will be the first time that they will fight against each other in the main tour.

Chak Lam Coleman Wong

Chak Lam Coleman Wong

28 - 28win/loss

Hard
19-17
I Hard
1-1
Clay
2-6
Grass
6-4
Rank
143
High
128
LWWWLWWWWL
See allSTATS
Year Total Hard Clay I.hard Grass Carpet
2025 32-30 20-18 2-6 4-2 6-4 0-0
2024 41-36 39-26 0-2 2-4 0-4 0-0
2023 53-27 42-19 9-7 2-1 0-0 0-0
2022 24-19 20-12 3-5 1-2 0-0 0-0
2021 11-7 5-4 6-3 0-0 0-0 0-0
See all years

Ranked no. 161, the got to the semifinal after defeating Hyeon Chung 6-3 6-2, Yu Hsiou Hsu 6-4 7-6(3) and Bu Yunchaokete 6-3 6-4.

In the quarter, Lam Coleman Wong had a good straight sets win against Yunchaokete (6-3 6-4). During the match, Lam Coleman Wong scored 69 points vs Yunchaokete’s 54. Lam Coleman Wong was exceptionally aggressive to blast 31 winners.

Regarding the service games, Lam Coleman Wong managed to score 8 aces and he committed only 2 double faults. Chak Lam Coleman Wong was extremely effective on serve to win 84% (31/37) of his 1st serve and 55% (11/20) on the second serve. This was the main reason for not conceding a single break during the match. The broke Yunchaokete twice after converting 33% of his break points (2/6).

Overall Performance in this tournament

The hasn’t lost yet a set in this event to conquer 57% of the points he played.

Lam Coleman Wong has a winning record in the last 7 years having won 56% of his matches (160-128). 19-17 on hard in 2025. In connection with his performance on the same surface of this tournament, Lam Coleman Wong has a compiled128-89 win-loss record in the last 7 years on hard.

Chak has an aggregate 28-28 win-loss record in 2025, 19-17 on hard (See FULL STATS).

Previously in the Seoul Challenger

Seoul Challenger
Lam Coleman Wong's Record

Yi Zhou

Yi Zhou

25 - 26win/loss

Hard
25-26
I Hard
0-0
Rank
251
High
251
LWWWLLWWWL
See allSTATS
Year Total Hard Clay I.hard Grass Carpet
2025 25-27 25-27 0-0 0-0 0-0 0-0
2024 29-25 29-23 0-0 0-2 0-0 0-0
2023 10-17 9-12 1-5 0-0 0-0 0-0
2022 1-1 1-1 0-0 0-0 0-0 0-0
See all years

Ranked no. 265 (career-high), the Chinese reached the semifinal after beating Sanhui Shin 7-6(0) 6-0, Taro Daniel 6-7(8) 6-3 6-0 and Frederico Ferreira Silva 7-6(6) 6-3.

In the quarter, Zhou had a good straight sets win against Ferreira Silva (7-66 6-3). During the match Zhou scored 73 points vs Ferreira Silva’s 61. Yi was extremely aggressive to blast 24 winners.

About the serving games, Zhou made 9 aces and he committed only 3 double faults. Overall, Yi Zhou was exceptionally effective on serve to win 71% (24/34) of his 1st serve and 52% (12/23) on the second serve. However, this didn’t prevent his to concede the serve 3 times. Zhou broke Ferreira Silva 5 times after converting 33% of his break points (5/15).

Overall Performance in this tournament

The Chinese has conceded 1 set in the tournament to win 58% of the points he played.

Zhou’s best result of the year was reaching the final in the Tyler Challenger and the Shenzhen Challenger.

Zhou has an overall 25-26 win-loss record in 2025, 25-26 on hard (See FULL STATS).

Previously in the Seoul Challenger

Previously, his best result was reaching the 1st round in 2024. See his history.

Seoul Challenger
Zhou's Record

H2H Performance in the tournament (main draw)

C.Lam Wong
Y.Zhou
4h:00
4h:00
Time on court​
5h:26
5h:26
1h:24
1h:24
Last match​
1h:51
1h:51
3
3
Match played
3
3
59
59
Games Played​
69
69
6
6
Set played​​
7
7
204
204
Total points​
244
244
68
68
Avg point​
81.3
81.3
83
83
Winners
80
80
27.7
27.7
Avg Winners​
26.7
26.7
41%
41%
Ratio winners
33%
33%
-- Serve --
21
21
Aces
20
20
7
7
Avg Aces
6.7
6.7
6
6
Double Faults
7
7
2
2
Avg Double Faults
2.3
2.3
83/108
83/108
1st won total​
80/104
80/104
!
77%
77%
1st won %
!
77%
77%
32/63
32/63
2nd won total​
51/87
51/87
51%
51%
2nd won %
59%
59%
-- Break Points --
12/19
12/19
BP won
15/31
15/31
4/6.3
4/6.3
Avg BP won
5/10.3
5/10.3
!
63%
63%
Won
48%
48%
10
10
Conceded
10
10
3.3
3.3
Avg Conceded
3.3
3.3
5
5
Broken
5
5
1.7
1.7
Avg Broken
1.7
1.7
5
5
Saved
5
5
See Allstats

Matches, sets, games and points

Points Lam Coleman Wong Zhou
Match played 3 3
Tot Set 6 7
Tot Games 59 69
Pts 204-152 244-180
Total Points 356 424
Winners 83 80
%Winners 41% 33%

Both Lam Coleman Wong and Zhou played 3 matches. At the moment, Yi Zhou surrendered 1 set while Chak Lam Coleman Wong hasn’t dropped a set so far. Lam Coleman Wong has played 1 set(s) less than Zhou (6 vs 7). Therefore, Lam Coleman Wong played 10 games less than Zhou. Chak scored 83 winners (41% of the total points). On the other side, Zhou blasted 80 winners (33%).

Serve Performance

Serve Lam Coleman Wong Zhou
Aces 21 20
Avg per match 7 6.7
1st in 108/171 104/191
%1st in 63% 54%
1st pts 83/108 80/104
%1st pts 77% 77%
2nd pts 32/63 51/87
%2nd pts 51% 59%

Lam Coleman Wong blasted 21 aces (7 per match). Zhou struck 20 aces (6.7 per match). Lam Coleman Wong won 77% points on his first serve. He was rock solid on his second serve to win 51% of the points. On the other side, Zhou won 77% of the points behind his first serve. He had a solid display on his second serve to win 59% of the points.

How they played the important points

Breaks Lam Coleman Wong Zhou
Won 12 15
Converted 12/19 15/31
% Converted 63% 48%
Conceded 10 10
Saved 5 5
% Saved 50% 50%
Times Broken 5 5

Chak broke his opponents 12 times with a 63% conversion rate. Chak lost his serve 5 times and he saved 50% of the break points that he conceded. The Chinese broke his opponents 15 times with a 48% conversion rate. The Chinese conceded his serve 5 times and he saved 50% of the break points that he conceded.

Lam Coleman Wong
R1
Chung		 R2
Hsiou Hsu		 1/4
Yunchaokete 		Total
Score 6-3 6-2 6-4 7-63 6-3 6-4
Tot Set 2 2 2 6
Tot Games 17 23 19 59
pts 62-40 73-58 69-54 204-152
Total points 102 131 123 356
Winners 18 34 31 83
%Winners 29% 47% 45% 41%
SERVE
Aces 3 10 8 21
Double Faults 0 4 2 6
1st in 28/45 43/69 37/57 108/171
% 1st in 62% 62% 65% 63%
1st pts 18/28 34/43 31/37 83/108
% 1st pts 64% 79% 84% 77%
2nd pts 10/17 11/26 11/20 32/63
% 2nd pts 59% 42% 55% 51%
Breaks
Won 6 4 2 12
Converted 6/8 4/5 2/6 12/19
Converted % 75% 80% 33% 63%
Conceded 4 5 1 10
Saved 2/4 2/5 1/1 5
Saved % 50% 40% 100% 63%
Times Broken 2 3 0 5
Zhou
R1
Shin		 R2
Daniel		 1/4
Ferreira Silva		 Total
Score 7-60 6-0 6-78 6-3 6-0 7-66 6-3
Tot Set 2 3 2 7
Tot Games 19 28 22 69
pts 69-44 102-75 73-61 244-180
Total points 113 177 134 424
Winners 22 34 24 80
%Winners 32% 33% 33% 33%
SERVE
Aces 4 7 9 20
Double Faults 0 4 3 7
1st in 30/52 40/82 34/57 104/191
% 1st in 58% 49% 60% 54%
1st pts 22/30 34/40 24/34 80/104
% 1st pts 73% 85% 71% 77%
2nd pts 11/22 28/42 12/23 51/87
% 2nd pts 50% 67% 52% 59%
Breaks
Won 5 5 5 15
Converted 5/8 5/8 5/15 15/31
Converted % 63% 63% 33% 48%
Conceded 2 4 4 10
Saved 0/2 4/4 1/4 5
Saved % 0% 100% 25% 42%
Times Broken 2 0 3 5

Tennis Scores in Seoul Challenger

Upcoming matches in the draw

Lam Coleman Wong
More Stats
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Zhou

Click for FULL STATS