Naomi Osaka and Suzan Lamens will face off in the 2^nd round of the Japan Open for the 2^nd time in their career. They are scheduled to compete on Wednesday at 2:00 pm on CENTER. 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 Naomi Osaka who should win in 2 sets.

As per the initial odds, Naomi Osaka is the pick to win this match.
Naomi Osaka -> 1.197
Suzan Lamens -> 4.55

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Prediction and head to head Naomi Osaka vs. Suzan Lamens

This will be the 2^nd time that Naomi Osaka and Suzan Lamens fight against each other. The head to head is 1-0 for Osaka (see full H2H stats), but they have never competed against each other on hard.

The last time that they fought against each other, Osaka won 6-2 6-2 in the 2^nd round in Hertogenbosch back in 2024.

Highlights Naomi Osaka vs Suzan Lamens – Hertogenbosch 12-June-2024

Naomi Osaka

Ranked no. 16, Naomi reached the 2^nd round after beating Wakana Sonobe 6-0 6-4.

In the 1^st round, The Japanese had a good straight sets win against Sonobe (6-0 6-4). During the match, Osaka scored 64 points vs Sonobe’s 40. The Japanese was very aggressive to blast 15 winners.

Talking about the service games, Osaka struck 8 aces and she committed only 1 double fault. Overall, Naomi Osaka was pretty efficient on serve to win 83% (15/18) of her 1st serve and 71% (15/21) on the second serve. However, this didn’t prevent her to concede the serve once. Osaka broke Sonobe 5 times after converting 38% of her break points (5/13).

Osaka has a solid match record in the last 10 years having won 66% of her matches (248-127). 23-9 on hard in 2025. Regarding her performance on the same surface of this tournament, Osaka has a compiled 180-78 match record in the last years on hard.

Her best result of the season was conquering the title the Malo where she defeated Kaja Juvan in the final 6-1 7-5.

Naomi has an aggregate 34-15 win-loss record in 2025, 23-9 on hard (See FULL STATS).

Previously in Osaka

Suzan Lamens

Ranked no. 57 (career-high), Lamens reached the 2^nd round after beating Emiliana Arango 6-1 6-2.

In the 1^st round, Lamens had a good straight sets win against Arango (6-1 6-2). During the match Lamens scored 62 points vs Arango’s 39. Lamens was very aggressive to blast 22 winners.

About the serving games, Lamens managed to score 2 aces and she committed only 3 double faults. Suzan Lamens was very effective on serve to win 76% (22/29) of her 1st serve and 62% (13/21) on the second serve. This was the main reason for not conceding a single break during the match. Suzan broke Arango 4 times after converting 67% of her break points (4/6).

Lamens’s best result of the current year was reaching the semifinal in Rouen.

Lamens has a composed 27-26 win-loss record in 2025, 15-15 on hard (See FULL STATS).

Previously in Osaka

Previously, she won this tournament once in 2024. See her history.

H2H Performance in the tournament

Matches, sets, games and points

Points	Osaka	Lamens
Match played	1	1
Tot Set	2	2
Tot Games	16	15
Pts	64-40	62-39
Total Points	104	101
Winners	15	22
%Winners	23%	35%

Both Osaka and Lamens played 1 match. Both players have not surrendered a single set in this event so far. Talking about their workload, Osaka and Lamens have played the same amount of sets 2. However, Osaka played 1 game more than Lamens. The Japanese scored 15 winners (23% of the total points). On the other side, Suzan scored 22 winners (35%).

Serve Performance

Serve	Osaka	Lamens
Aces	8	2
Avg per match	8	2
1st in	18/39	29/50
%1st in	46%	58%
1st pts	15/18	22/29
%1st pts	83%	76%
2nd pts	15/21	13/21
%2nd pts	71%	62%

Osaka bagged 8 aces . Lamens struck 2 aces . Osaka won 83% points behind her first serve. She very solid her second serve to win 71% of the points. On the other side, Lamens won 76% of the points behind her first serve. She had a solid display on her second serve to win 62% of the points.

How they played the important points

Breaks	Osaka	Lamens
Won	5	4
Converted	5/13	4/6
% Converted	38%	67%
Conceded	3	1
Saved	2	1
% Saved	67%	100%
Times Broken	1	0

Naomi broke her opponent 5 times with a 38% conversion rate. The Japanese surrendered her serve once and she saved 67% of the break points that she conceded. The Dutch broke her opponent 4 times with a 67% conversion rate. Lamens was rock solid on her serve as she has never conceded a single service game after saving 1 break points.

Osaka
	R1 Sonobe	Total
Score	6-0 6-4
Tot Set	2	2
Tot Games	16	16
pts	64-40	64-40
Total points	104	104
Winners	15	15
%Winners	23%	23%
SERVE
Aces	8	8
Double Faults	1	1
1st in	18/39	18/39
% 1st in	46%	46%
1st pts	15/18	15/18
% 1st pts	83%	83%
2nd pts	15/21	15/21
% 2nd pts	71%	71%
Breaks
Won	5	5
Converted	5/13	5/13
Converted %	38%	38%
Conceded	3	3
Saved	2/3	2
Saved %	67%	67%
Times Broken	1	1

Lamens
	R1 Arango	Total
Score	6-1 6-2
Tot Set	2	2
Tot Games	15	15
pts	62-39	62-39
Total points	101	101
Winners	22	22
%Winners	35%	35%
SERVE
Aces	2	2
Double Faults	3	3
1st in	29/50	29/50
% 1st in	58%	58%
1st pts	22/29	22/29
% 1st pts	76%	76%
2nd pts	13/21	13/21
% 2nd pts	62%	62%
Breaks
Won	4	4
Converted	4/6	4/6
Converted %	67%	67%
Conceded	1	1
Saved	1/1	1
Saved %	100%	100%
Times Broken	0	0

Tennis Scores in Osaka

• Botic Van De ZandschulpVan De Zandschulp – Sebastian OfnerOfner (6-1 5-7 6-3) – Stats, scores, rankings
• Casper RuudRuud – Yannick HanfmannHanfmann (6-7⁵ 7-5 7-5) – Stats, scores, rankings
• Henri LaaksonenLaaksonen – Geoffrey BlancaneauxBlancaneaux (6-3 7-5) – Stats, scores, rankings
• Daniel AltmaierAltmaier – Oscar OtteOtte (6-3 1-0 ret.) – Stats, scores, rankings
• Johannes HaerteisHaerteis – Rudolf MollekerMolleker (3-6 7-5 6-1) – Stats, scores, rankings
• Tobias KamkeKamke – Stefano TravagliaTravaglia (6-3 7-6⁴) – Stats, scores, rankings
• Javier Barranco CosanoBarranco Cosano – Hugo DellienDellien (6-1 7-6³) – Stats, scores, rankings
• Jozef KovalikKovalik – Pedro Martinez PorteroMartinez Portero (6-1 6-3) – Stats, scores, rankings
• Mats MoraingMoraing – Emil RuusuvuoriRuusuvuori (6-7⁴ 6-4 6-3) – Stats, scores, rankings
• Marco TrungellitiTrungelliti – Gonzalo EscobarEscobar (7-6⁸ 6-4) – Stats, scores, rankings
• Attila BalazsBalazs – Elias YmerYmer (6-3 6-2) – Stats, scores, rankings
• Lukas RosolRosol – Tallon GriekspoorGriekspoor (7-5 2-6 6-3) – Stats, scores, rankings
• Thiago Moura MonteiroMoura Monteiro – Steven DiezDiez (6-4 6-3) – Stats, scores, rankings
• Gianluca MagerMager – Lucas MiedlerMiedler (7-5 6-3) – Stats, scores, rankings
• Pedro CachinCachin – Kimmer CoppejansCoppejans (6-0 6-1) – Stats, scores, rankings
• Kamil MajchrzakMajchrzak – Carlos TabernerTaberner (7-6² 6-3) – Stats, scores, rankings

Upcoming matches in the draw

• Elise MertensMertens – Cristina BucsaBucsa (1-2) – H2H and prediction
• Naomi OsakaOsaka – Suzan LamensLamens (1-0) – H2H and prediction
• Jaqueline CristianCristian – Jessica Bouzas ManeiroBouzas Maneiro (0-1) – H2H and prediction
• Ann LiLi – Rebecca SramkovaSramkova (2-0) – H2H and prediction
• Dalma GalfiGalfi – Leylah Annie FernandezAnnie Fernandez (0-0) – H2H and prediction
• Marie BouzkovaBouzkova – Viktorija GolubicGolubic (3-2) – H2H and prediction
• Sorana CirsteaCirstea – Katie BoulterBoulter (0-0) – H2H and prediction