Daniel Altmaier and Zhizhen Zhang will play each other in the quarter of the Hamburg European Open for the 1^st time in their career. They are scheduled to compete on Friday at 2:30 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 Daniel Altmaier who should win in 3 sets.

As per the initial odds, Daniel Altmaier is the pick to win this match.
Daniel Altmaier -> 1.6
Zhizhen Zhang -> 2.34

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Prediction and head to head Daniel Altmaier vs. Zhizhen Zhang

There is no head to head record between Daniel Altmaier and Zhizhen Zhang since this will be the first time that they will clash against each other in the main tour.

Daniel Altmaier

Ranked no. 61, Daniel reached the quarter after beating Richard Gasquet 7-5 6-4 and Andrey Rublev 6-2 6-2.

In the 2^nd round, Altmaier had a good straight sets win against Rublev (6-2 6-2). During the match, Altmaier scored 59 points vs Rublev’s 41. Altmaier was quite aggressive to blast 23 winners.

Talking about the service games, Altmaier recorded 7 aces and he committed only 2 double faults. Daniel Altmaier was exceptionally efficient on serve to win 85% (23/27) of his 1st serve and 55% (12/22) on the second serve. This was the main reason for not conceding a single break during the match. The German broke Rublev 4 times after converting 57% of his break points (4/7).

Overall Performance in this tournament

Daniel hasn’t dropped yet a set in this competition to conquer 57% of the points he played.

Altmaier has a solid win-loss record in the last 9 years having won 63% of his matches (353-208). 19-8 on clay in 2023. In connection with his performance on the same surface of this competition, Altmaier has an aggregate173-103 win-loss record in the last 9 years on clay.

His best result of the season was winning the title the Sarasota Challenger where he overcame Daniel Elahi Galan in the final 7-6(1) 6-1.

The German has a compiled 27-20 win-loss record in 2023, 19-8 on clay (See FULL STATS).

Previously in Hamburg

Zhizhen Zhang

Ranked no. 79, Zhizhen reached the quarter after beating Jan Choinski 6-4 7-5 and Yannick Hanfmann 4-6 6-1 6-4.

In the 2^nd round against Hanfmann, Zhizhen recovered from a 1-set down deficit before winning (4-6 6-1 6-4). During the match Zhang scored 92 points vs Hanfmann’s 75. The Chinese was exceptionally aggressive to blast 39 winners.

Talking about serving, Zhang fired 2 aces and he committed only 1 double fault for the entire match. Zhizhen Zhang lost the serve 3 times and he saved 4 break points. Furthermore, Zhang put 63% of his first serves in, winning 66% (39/59) of the points behind his 1st serve and 56% (19/34) on the 2nd serve. The Chinese broke Hanfmann 5 times after converting 71% of his break points (5/7).

Overall Performance in this tournament

Zhizhen has conceded 1 set in the tournament to win 54% of the points he played.

The Chinese has an aggregate 20-21 win-loss record in 2023, 13-8 on clay (See FULL STATS).

Previously in Hamburg

Previously, his best result was reaching the 1^st

round in 2021. See his history.

H2H Performance in the tournament (main draw)

Matches, sets, games and points

Points	Altmaier	Zhang
Match played	2	2
Tot Set	4	5
Tot Games	38	49
Pts	139-105	179-154
Total Points	244	333
Winners	45	67
%Winners	32%	37%

Both Altmaier and Zhang played 2 matches. At the moment, Zhizhen Zhang lost 1 set while Daniel Altmaier hasn’t dropped a set so far. Altmaier has played 1 set(s) less than Zhang (4 vs 5). Therefore, Altmaier played 11 games less than Zhang. Altmaier scored 45 winners (32% of the total points). On the other side, The Chinese scored 67 winners (37%).

Serve Performance

Serve	Altmaier	Zhang
Aces	13	6
Avg per match	6.5	3
1st in	58/109	99/164
%1st in	53%	60%
1st pts	45/58	67/99
%1st pts	78%	68%
2nd pts	26/51	38/65
%2nd pts	51%	58%

Altmaier struck 13 aces (6.5 per match). Zhang scored 6 aces (3 per match). Altmaier won 78% points behind his first serve. He quite strong on his second serve to win 51% of the points. On the other side, Zhang won 68% of the points on his first serve. He had a solid display on his second serve to win 58% of the points.

How they played the important points

Breaks	Altmaier	Zhang
Won	10	8
Converted	10/23	8/23
% Converted	43%	35%
Conceded	8	12
Saved	4	8
% Saved	50%	67%
Times Broken	4	4

Daniel broke his opponents 10 times with a 43% conversion rate. Daniel surrendered his serve 4 times and he saved 50% of the break points that he conceded. Zhang broke his opponents 8 times with a 35% conversion rate. Zhang conceded his serve 4 times and he saved 67% of the break points that he conceded.

Altmaier
	R1 Gasquet	R2 Rublev	Total
Score	7-5 6-4	6-2 6-2
Tot Set	2	2	4
Tot Games	22	16	38
pts	80-64	59-41	139-105
Total points	144	100	244
Winners	22	23	45
%Winners	28%	39%	32%
SERVE
Aces	6	7	13
Double Faults	2	2	4
1st in	31/60	27/49	58/109
% 1st in	52%	55%	53%
1st pts	22/31	23/27	45/58
% 1st pts	71%	85%	78%
2nd pts	14/29	12/22	26/51
% 2nd pts	48%	55%	51%
Breaks
Won	6	4	10
Converted	6/16	4/7	10/23
Converted %	38%	57%	43%
Conceded	6	2	8
Saved	2/6	2/2	4
Saved %	33%	100%	67%
Times Broken	4	0	4

Zhang
	R1 Choinski	R2 Hanfmann	Total
Score	6-4 7-5	4-6 6-1 6-4
Tot Set	2	3	5
Tot Games	22	27	49
pts	87-79	92-75	179-154
Total points	166	167	333
Winners	28	39	67
%Winners	32%	42%	37%
SERVE
Aces	4	2	6
Double Faults	2	1	3
1st in	40/71	59/93	99/164
% 1st in	56%	63%	60%
1st pts	28/40	39/59	67/99
% 1st pts	70%	66%	68%
2nd pts	19/31	19/34	38/65
% 2nd pts	61%	56%	58%
Breaks
Won	3	5	8
Converted	3/16	5/7	8/23
Converted %	19%	71%	35%
Conceded	5	7	12
Saved	4/5	4/7	8
Saved %	80%	57%	69%
Times Broken	1	3	4

Tennis Scores in Hamburg

• Sander Gille/Joran VliegenGille/Joran Vliegen – Robin Haase/Nikola MekticHaase/Nikola Mektic (6-7² 7-5 11-9) – Stats, scores, rankings
• Kevin Krawietz/Tim PuetzKrawietz/Tim Puetz – Juan-Sebastian Cabal/Matwe MiddelkoopCabal/Matwe Middelkoop (7-5 6-4) – Stats, scores, rankings

Upcoming matches in the draw

• Alexander ZverevZverev – (0-0) – H2H and prediction
• Laslo DjereDjere – Lorenzo MusettiMusetti (5-2) – H2H and prediction
• Zhizhen ZhangZhang – Daniel AltmaierAltmaier (0-0) – H2H and prediction
• Casper RuudRuud – (0-0) – H2H and prediction