Stefan Dostanic and Alex Rybakov will square off in the qualifications of the San Diego Challenger for the 1^st time in their career. They are scheduled to play on Monday at 12:30 pm on STADIUM. Here the head to head stats and relative prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Stefan Dostanic who should win in 2 sets.

As per the initial odds, Stefan Dostanic is the pick to win this match.
Stefan Dostanic -> 1.4
Alex Rybakov -> 2.77

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Prediction and head to head Stefan Dostanic vs. Alex Rybakov

There is no head to head record between Stefan Dostanic and Alex Rybakov since this will be the first time that they will fight against each other in the main tour.

Stefan Dostanic

Ranked no. 488, the American got to the qualifications after beating Rudy Quan 6-2 6-4.

In the qualifications, Stefan had a good straight sets win against Quan (6-2 6-4). During the match, Dostanic scored 80 points vs Quan’s 68. Stefan was very aggressive to blast 31 winners.

Talking about the service games, Dostanic managed to score 5 aces and he committed only 2 double faults. Stefan Dostanic lost the serve once and he saved 4 break points. Furthermore, Dostanic put 69% of his first serves in, winning 70% (31/44) of the points behind his 1st serve and 45% (9/20) on the 2nd serve. Stefan broke Quan 4 times after converting 29% of his break points (4/14).

Dostanic has a solid win-loss record in the last 7 years having won 67% of his matches (73-36). 1-0 on hard in 2025. In connection with his performance on the same surface of this tournament, Dostanic has a compiled61-32 record in the last 7 years on hard.

Stefan has a compiled 3-2 win-loss record in 2025, 1-0 on hard (See FULL STATS).

Previously in the San Diego Challenger

Dostanic has never competed in this tournament before.

Alex Rybakov

Ranked no. 573, Rybakov reached the qualifications after beating Lucas Renard 7-5 4-6 6-4.

In the qualifications, Alex defeated Renard (7-5 4-6 6-4). During the match Rybakov scored 107 points vs Renard’s 91. The American was quite aggressive to blast 42 winners.

About the serving games, Rybakov scored 6 aces and he committed only 5 double faults. Alex Rybakov lost the serve 4 times and he saved 1 break points. Furthermore, Rybakov put 61% of his first serves in, winning 82% (42/51) of the points behind his 1st serve and 48% (16/33) on the 2nd serve. Rybakov broke Renard 5 times after converting 33% of his break points (5/15).

Rybakov’s best result of the year was getting to the semifinal in M25 Ithaca.

Alex has an overall 7-4 win-loss record in 2025, 1-0 on hard (See FULL STATS).

H2H Performance in the tournament

Matches, sets, games and points

Points	Dostanic	Rybakov
Match played	1	1
Tot Set	2	3
Tot Games	18	32
Pts	80-68	107-91
Total Points	148	198
Winners	31	42
%Winners	39%	39%

Both Dostanic and Rybakov played 1 match. Also both players started their run from the qualifications.At the moment, Alex Rybakov surrendered 1 set while Stefan Dostanic hasn’t lost a set so far. Dostanic has played 1 set(s) less than Rybakov (2 vs 3). Therefore, Dostanic played 14 games less than Rybakov. Dostanic scored 31 winners (39% of the total points). On the other side, Rybakov blasted 42 winners (39%).

Serve Performance

Serve	Dostanic	Rybakov
Aces	5	6
Avg per match	5	6
1st in	44/64	51/84
%1st in	69%	61%
1st pts	31/44	42/51
%1st pts	70%	82%
2nd pts	9/20	16/33
%2nd pts	45%	48%

Dostanic made 5 aces . Rybakov recorded 6 aces . Dostanic won 70% points behind his first serve. He pretty effective on his second serve to win 45% of the points. On the other side, Rybakov won 82% of the points behind his first serve. He had a solid display on his second serve to win 48% of the points.

How they played the important points

Breaks	Dostanic	Rybakov
Won	4	5
Converted	4/14	5/15
% Converted	29%	33%
Conceded	5	5
Saved	4	1
% Saved	80%	20%
Times Broken	1	4

Stefan broke his opponent 4 times with a 29% conversion rate. Stefan conceded his serve once and he saved 80% of the break points that he conceded. Alex broke his opponent 5 times with a 33% conversion rate. The American conceded his serve 4 times and he saved 20% of the break points that he conceded.

Dostanic
	Q1 Quan	Total
Score	6-2 6-4
Tot Set	2	2
Tot Games	18	18
pts	80-68	80-68
Total points	148	148
Winners	31	31
%Winners	39%	39%
SERVE
Aces	5	5
Double Faults	2	2
1st in	44/64	44/64
% 1st in	69%	69%
1st pts	31/44	31/44
% 1st pts	70%	70%
2nd pts	9/20	9/20
% 2nd pts	45%	45%
Breaks
Won	4	4
Converted	4/14	4/14
Converted %	29%	29%
Conceded	5	5
Saved	4/5	4
Saved %	80%	80%
Times Broken	1	1

Rybakov
	Q1 Renard	Total
Score	7-5 4-6 6-4
Tot Set	3	3
Tot Games	32	32
pts	107-91	107-91
Total points	198	198
Winners	42	42
%Winners	39%	39%
SERVE
Aces	6	6
Double Faults	5	5
1st in	51/84	51/84
% 1st in	61%	61%
1st pts	42/51	42/51
% 1st pts	82%	82%
2nd pts	16/33	16/33
% 2nd pts	48%	48%
Breaks
Won	5	5
Converted	5/15	5/15
Converted %	33%	33%
Conceded	5	5
Saved	1/5	1
Saved %	20%	20%
Times Broken	4	4

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