Jannik Sinner and Alexander Bublik will play each other in the quarter of the Erste Bank Open for the 8^th time in their career. They are scheduled to compete on Friday at 5:30 pm on CENTER COURT. In this post, we analyze their head to head performance and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Jannik Sinner who should win in 2 sets.

As per the initial odds, Jannik Sinner is the pick to win this match.
Jannik Sinner -> 1.078
Alexander Bublik -> 7.9

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Prediction and head to head Jannik Sinner vs. Alexander Bublik

This will be the 8^th time that Jannik Sinner and Alexander Bublik clash against each other. The head to head is 5-2 for Sinner (see full H2H stats), but they have never played each other on indoor hard courts.

The last time that they locked horns, Sinner won 6-1 6-1 6-1 in the 4^th round in at the U.S. Open back in September 2025.

Highlights Jannik Sinner vs Alexander Bublik – U.S. Open 01-September-2025

Jannik Sinner

Ranked no. 2, Sinner reached the quarter after beating Daniel Altmaier 6-0 6-2 and Flavio Cobolli 6-2 7-6(4).

In the 2^nd round, Sinner had a good straight sets win against Cobolli (6-2 7-6⁴). During the match, Sinner scored 77 points vs Cobolli’s 67. Sinner was quite aggressive to blast 29 winners.

Talking about the service games, Sinner blasted 4 aces and he committed only 1 double fault. Jannik Sinner conceded no breaks for the entire match to put 65% of his first serves in, win 69% (29/42) of the points behind his 1st serve and 78% (18/23) on the 2nd serve. Jannik broke Cobolli twice after converting 25% of his break points (2/8).

Overall Performance in this tournament

Sinner hasn’t dropped yet a set in this competition to conquer 60% of the points he played.

Sinner has a fantastic win-loss record in the last 8 years having won 75% of his matches (391-127). 2-0 on indoor hard courts in 2025. Regarding his performance on the same surface of this event, Sinner has an aggregate102-25 match record in the last 8 years on indoor hard courts.

His best result of the season was conquering the title at the Australian Open where he overcame Alexander Zverev in the final 6-3 7-6(4) 6-3 and at the Wimbledon where he defeated Carlos Alcaraz in the final 4-6 6-4 6-4 6-4 and in Beijing where he defeated Learner Tien in the final 6-2 6-2.

Sinner has a composed 45-6 win-loss record in 2025, 2-0 on indoor hard courts (See FULL STATS).

Previously in Vienna

Alexander Bublik

Ranked no. 16 (career-high), Bublik got to the quarter after beating Alejandro Tabilo 6-4 6-4 and Francisco Cerundolo 6-4 6-2.

In the 2^nd round, The Kazakhstani had a good straight sets win against Cerundolo (6-4 6-2). During the match Bublik scored 65 points vs Cerundolo’s 51. Alexander was quite aggressive to blast 40 winners.

About the serving games, Bublik bagged 11 aces and he committed only 4 double faults. Alexander Bublik conceded no breaks for the entire match to save 6 break points. Furthermore, Bublik put 76% of his first serves in, winning 80% (40/50) of the points behind his 1st serve and 38% (6/16) on the 2nd serve. The Kazakhstani broke Cerundolo 3 times after converting 75% of his break points (3/4).

Overall Performance in this tournament

Bublik hasn’t dropped yet a set in the tournament to win 55% of the points he played.

His best result of the year was conquering the title the Turin Challenger where he overcame Bu Yunchaokete in the final 6-3 6-3 and in Halle where he beat Daniil Medvedev in the final 6-3 7-6(4) and in Gstaad where he defeated Juan Manuel Cerundolo in the final 6-4 4-6 6-3 and in Kitzbuhel where he overcame Arthur Cazaux in the final 6-4 6-3 and in Hangzhou where he beat Valentin Royer in the final 7-6(4) 7-6(4).

The Kazakhstani has an aggregate 44-21 win-loss record in 2025, 4-3 on indoor hard courts (See FULL STATS).

H2H Performance in the tournament (main draw)

Matches, sets, games and points

Points	Sinner	Bublik
Match played	2	2
Tot Set	4	4
Tot Games	35	38
Pts	132-89	125-101
Total Points	221	226
Winners	47	71
%Winners	36%	57%

Both Sinner and Bublik played 2 matches. Both players have not lost a single set in this event so far. Talking about their workload, Sinner and Bublik have played the same amount of sets 4. However, Sinner played 3 games less than Bublik. The Italian scored 47 winners (36% of the total points). On the other side, The Kazakhstani struck 71 winners (57%).

Serve Performance

Serve	Sinner	Bublik
Aces	9	23
Avg per match	4.5	11.5
1st in	61/97	84/120
%1st in	63%	70%
1st pts	47/61	71/84
%1st pts	77%	85%
2nd pts	28/36	17/36
%2nd pts	78%	47%

Sinner recorded 9 aces (4.5 per match). Bublik scored 23 aces (11.5 per match). Sinner won 77% points behind his first serve. He was rock solid on his second serve to win 78% of the points. On the other side, Bublik won 85% of the points behind his first serve. He had a solid display on his second serve to win 47% of the points.

How they played the important points

Breaks	Sinner	Bublik
Won	7	5
Converted	7/14	5/9
% Converted	50%	56%
Conceded	0	7
Saved	0	7
% Saved	0%	100%
Times Broken	0	0

Jannik broke his opponents 7 times with a 50% conversion rate. Jannik was rock solid on his serve as he has never dropped a single service game after saving 0 break points. The Kazakhstani broke his opponents 5 times with a 56% conversion rate. Alexander was rock solid on his serve as he has never conceded a single service game after saving 7 break points.

Sinner
	R1 Altmaier	R2 Cobolli	Total
Score	6-0 6-2	6-2 7-64
Tot Set	2	2	4
Tot Games	14	21	35
pts	55-22	77-67	132-89
Total points	77	144	221
Winners	18	29	47
%Winners	33%	38%	36%
SERVE
Aces	5	4	9
Double Faults	0	1	1
1st in	19/32	42/65	61/97
% 1st in	59%	65%	63%
1st pts	18/19	29/42	47/61
% 1st pts	95%	69%	77%
2nd pts	10/13	18/23	28/36
% 2nd pts	77%	78%	78%
Breaks
Won	5	2	7
Converted	5/6	2/8	7/14
Converted %	83%	25%	50%
Conceded	0	0	0
Saved	0/0	0/0	0
Saved %	–	–	0%
Times Broken	0	0	0

Bublik
	R1 Tabilo	R2 Cerundolo	Total
Score	6-4 6-4	6-4 6-2
Tot Set	2	2	4
Tot Games	20	18	38
pts	60-50	65-51	125-101
Total points	110	116	226
Winners	31	40	71
%Winners	52%	62%	57%
SERVE
Aces	12	11	23
Double Faults	5	4	9
1st in	34/54	50/66	84/120
% 1st in	63%	76%	70%
1st pts	31/34	40/50	71/84
% 1st pts	91%	80%	85%
2nd pts	11/20	6/16	17/36
% 2nd pts	55%	38%	47%
Breaks
Won	2	3	5
Converted	2/5	3/4	5/9
Converted %	40%	75%	56%
Conceded	1	6	7
Saved	1/1	6/6	7
Saved %	100%	100%	100%
Times Broken	0	0	0

Upcoming matches in the draw

• Tallon GriekspoorGriekspoor – Alexander ZverevZverev (2-8) – H2H and prediction
• Corentin MoutetMoutet – Lorenzo MusettiMusetti (0-1) – H2H and prediction
• Alex De MinaurDe Minaur – Matteo BerrettiniBerrettini (2-3) – H2H and prediction
• Jannik SinnerSinner – Alexander BublikBublik (5-2) – H2H and prediction