Kimberly Birrell and Aoi Ito will clash against each other in the semifinal of the Japan Open Tennis Championships for the 2^nd time in their career. They are scheduled to compete on Saturday at 12:30 pm on Center Court. In the following paragraphs, you can find the head to head analysis and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Kimberly Birrell who should win in 3 sets.

As per the initial odds, Kimberly Birrell is the pick to win this match.
Kimberly Birrell -> 1.61
Aoi Ito -> 2.32

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Prediction and head to head Kimberly Birrell vs. Aoi Ito

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

The last time that they locked horns, Birrell won 7-6(6) 7-5 in the quarter in the W75 Fukuoka back in May 2024.

Kimberly Birrell

Ranked no. 150, Kimberly got to the semifinal after beating Sayaka Ishii 6-2 3-6 6-3, Jessika Ponchet 7-5 3-6 6-2, Saisai Zheng 6-2 6-3, Elise Mertens 3-6 7-5 4-1 ret. and Sara Saito 7-5 6-4.

In the quarter, Kimberly had a good straight sets win against Saito (7-5 6-4). During the match, Birrell scored 74 points vs Saito’s 61. Birrell was pretty aggressive to blast 30 winners.

Regarding the service games, Birrell bagged 2 aces and she committed only 2 double faults. Kimberly Birrell lost the serve once. Furthermore, Birrell put 70% of her first serves in, winning 67% (30/45) of the points behind her 1st serve and 68% (13/19) on the 2nd serve. The Australian broke Saito 3 times after converting 50% of her break points (3/6).

Overall Performance in this tournament

Birrell started her run at this tournament from the qualifications. In the main draw, she has dropped 2 set in this event to conquer 55% of the points she played.

Birrell has winning record in the last 10 years having won 55% of her matches (207-172). 20-17 on hard in 2024. In connection with her performance on the same surface of this tournament, Birrell has an overall 150-114 win-loss record in the last years on hard.

Her best result of the current year was conquering the title the W75 Fukuoka where she defeated Emina Bektas in the final 6-2 6-4.

Birrell has a compiled 38-25 win-loss record in 2024, 20-17 on hard (See FULL STATS).

Previously in Osaka

Kimberly has never competed in this tournament before.

Aoi Ito

Ranked no. 188 (career-high), Aoi reached the semifinal after defeating Emina Bektas 6-3 6-4, Arianne Hartono 3-6 6-3 6-4, Sofia Kenin 6-2 3-6 7-5, Elisabetta Cocciaretto 6-4 6-3 and Eva Lys 6-7(8) 6-2 6-3.

In the quarter against Lys, The Japanese recovered from a 1-set down deficit before winning (6-7⁸ 6-2 6-3). During the match Ito scored 109 points vs Lys’s 94. The Japanese was quite aggressive to blast 43 winners.

About the serving games, Ito managed to score 2 aces and she committed only 3 double faults. Aoi Ito lost the serve twice and she saved 4 break points. Furthermore, Ito put 72% of her first serves in, winning 64% (43/67) of the points behind her 1st serve and 54% (14/26) on the 2nd serve. The Japanese broke Lys 6 times after converting 60% of her break points (6/10).

Overall Performance in this tournament

Ito started her run at this tournament from the qualifications. In the main draw, she has conceded 3 set in the tournament to win 53% of the points she played.

Her best result of the current season was winning the title the W50 Nanao where she beat Ayano Shimizu in the final 6-2 6-1.

Aoi has a compiled 56-21 win-loss record in 2024, 48-19 on hard (See FULL STATS).

Previously in Osaka

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

H2H Performance in the tournament

Matches, sets, games and points

Points	Birrell	Ito
Match played	5	5
Tot Set	14	13
Tot Games	120	125
Pts	415-354	440-390
Total Points	769	830
Winners	166	197
%Winners	40%	45%

Both Birrell and Ito played 5 matches. Also both players started their run from the qualifications.Both players lost a set in the event. Kimberly Birrell lost 3 sets, while Aoi Ito dropped 3 sets. Birrell has played 1 set more than Ito (14 vs 13). However, it’s interesting to notice that Birrell played 5 games less than Ito. Kimberly scored 166 winners (40% of the total points). On the other side, Aoi bagged 197 winners (45%).

Serve Performance

Serve	Birrell	Ito
Aces	18	16
Avg per match	3.6	3.2
1st in	236/364	329/433
%1st in	65%	76%
1st pts	166/236	197/329
%1st pts	70%	60%
2nd pts	72/128	51/104
%2nd pts	56%	49%

Birrell struck 18 aces (3.6 per match). Ito bagged 16 aces (3.2 per match). Birrell won 70% points on her first serve. She very solid her second serve to win 56% of the points. On the other side, Ito won 60% of the points behind her first serve. She had a solid display on her second serve to win 49% of the points.

How they played the important points

Breaks	Birrell	Ito
Won	20	28
Converted	20/46	28/47
% Converted	43%	60%
Conceded	27	43
Saved	18	25
% Saved	67%	58%
Times Broken	9	18

Birrell broke her opponents 20 times with a 43% conversion rate. Kimberly conceded her serve 9 times and she saved 67% of the break points that she conceded. Aoi broke her opponents 28 times with a 60% conversion rate. Ito conceded her serve 18 times and she saved 58% of the break points that she conceded.

Birrell
	Q1 Ishii	Q3 Ponchet	R1 Zheng	R2 Mertens	1/4 Saito	Total
Score	6-2 3-6 6-3	7-5 3-6 6-2	6-2 6-3	3-6 7-5 4-1 ret.	7-5 6-4
Tot Set	3	3	2	3	2	13
Tot Games	26	29	17	26	22	120
pts	95-81	90-88	59-32	97-92	74-61	415-354
Total points	176	178	91	189	135	769
Winners	36	42	20	38	30	166
%Winners	38%	47%	34%	39%	41%	40%
SERVE
Aces	6	3	4	3	2	18
Double Faults	0	2	1	3	2	8
1st in	51/77	58/88	23/41	59/94	45/64	236/364
% 1st in	66%	66%	56%	63%	70%	65%
1st pts	36/51	42/58	20/23	38/59	30/45	166/236
% 1st pts	71%	72%	87%	64%	67%	70%
2nd pts	17/26	13/30	11/18	18/35	13/19	72/128
% 2nd pts	65%	43%	61%	51%	68%	56%
Breaks
Won	4	4	5	4	3	20
Converted	4/13	4/7	5/8	4/12	3/6	20/46
Converted %	31%	57%	63%	33%	50%	43%
Conceded	6	4	3	13	1	27
Saved	4/6	2/4	2/3	10/13	0/1	18
Saved %	67%	50%	67%	77%	0%	52%
Times Broken	2	2	1	3	1	9

Ito
	Q1 Bektas	Q3 Hartono	R1 Kenin	R2 Cocciaretto	1/4 Lys	Total
Score	6-3 6-4	3-6 6-3 6-4	6-2 3-6 7-5	6-4 6-3	6-78 6-2 6-3
Tot Set	2	3	3	2	3	13
Tot Games	19	28	29	19	30	125
pts	68-55	91-87	104-96	68-58	109-94	440-390
Total points	123	178	200	126	203	830
Winners	42	34	45	33	43	197
%Winners	62%	37%	43%	49%	39%	45%
SERVE
Aces	6	0	7	1	2	16
Double Faults	0	1	4	4	3	12
1st in	54/67	68/88	87/112	53/73	67/93	329/433
% 1st in	81%	77%	78%	73%	72%	76%
1st pts	42/54	34/68	45/87	33/53	43/67	197/329
% 1st pts	78%	50%	52%	62%	64%	60%
2nd pts	6/13	11/20	14/25	6/20	14/26	51/104
% 2nd pts	46%	55%	56%	30%	54%	49%
Breaks
Won	2	8	7	5	6	28
Converted	2/4	8/12	7/12	5/9	6/10	28/47
Converted %	50%	67%	58%	56%	60%	60%
Conceded	4	10	18	5	6	43
Saved	4/4	3/10	12/18	2/5	4/6	25
Saved %	100%	30%	67%	40%	67%	61%
Times Broken	0	7	6	3	2	18

Tennis Scores in Osaka

• Cheong-Eui KimKim – Quentin RobertRobert (6-1 5-7 6-0) – Stats, scores, rankings
• David Perez SanzPerez Sanz – Marco BrugnerottoBrugnerotto (6-2 6-2) – Stats, scores, rankings

Upcoming matches in the draw

• Suzan LamensLamens – Diane ParryParry (0-1) – H2H and prediction