ATP tennis predict — Zdenek Kolar vs Alex Barrena

Challenger Clay Tulln challenger · QF 13:30

Predicted probability

Zdenek Kolar

Czech Republic

55.04%

Alex Barrena

Argentina

44.96%

Average Odds

1.69 / 2.10

Market probability

55.41% / 44.59%

Why This Prediction?

Zdenek Kolar is the favorite because he has more wins on clay courts (190 vs 82), a higher Elo rating on clay courts (1662 vs 1650) and a stronger serve (59.6% vs 55.6% of service points won).

Player Comparison

1644.6 Elo 1647.5

1662.3 Elo (surface) 1650.3

271 Wins (Challenger) 82

190 Wins (surface) 82

7 Last 15 form 8

0 Head-to-head wins 0

1.137 Dominance ratio 0.948

175 Rank 235

29.9 Age 23.9

right Hand right

Performance vs. the Odds

Career record grouped by how big a favorite the market made each player, based on their average odds.

Zdenek Kolar

Heavy favorite (odds below 1.30) 3W–0L · 100.0%

Favorite (odds 1.30-1.80) 2W–6L · 25.0%

Even match (odds 1.80-2.20) 1W–1L · 50.0%

Underdog (odds 2.20-4.00) 2W–3L · 40.0%

Heavy underdog (odds above 4.00) 0W–2L · 0.0%

20 matches with market odds since 2026-05-26.

Alex Barrena

Heavy favorite (odds below 1.30) 1W–0L · 100.0%

Favorite (odds 1.30-1.80) 10W–2L · 83.3%

Even match (odds 1.80-2.20) 1W–5L · 16.7%

Underdog (odds 2.20-4.00) 3W–3L · 50.0%

Heavy underdog (odds above 4.00) 0W–3L · 0.0%

28 matches with market odds since 2026-06-02.

Serve & Return

Serve and return win rates from each player's last 10 matches at the selected level.

Zdenek Kolar Alex Barrena

1st Serve In %

61.5%

57.9%

1st Serve Points Won %

66.2%

64.4%

2nd Serve Points Won %

52.0%

49.3%

Return Points Won vs 1st Serve %

28.4%

31.3%

Return Points Won vs 2nd Serve %

45.4%

46.9%

Aces per Service Game

0.35

0.28

Double Faults per Service Game

0.32

0.31

Based on each player's last 10 ATP/Grand Slam matches.

1st Serve In %

54.5%

53.9%

1st Serve Points Won %

65.7%

54.2%

2nd Serve Points Won %

58.2%

40.8%

Return Points Won vs 1st Serve %

40.1%

38.8%

Return Points Won vs 2nd Serve %

53.6%

50.0%

Aces per Service Game

0.35

0.18

Double Faults per Service Game

0.31

0.19

Based on each player's last 10 Challenger matches.

Break Point Performance

How each player handles the biggest points - break points saved serving, and converted returning - from their last 10 matches at the selected level.

Zdenek Kolar Alex Barrena

Break Points Saved %

52.4%

66.7%

Break Points Converted %

33.9%

45.8%

Based on each player's last 10 ATP/Grand Slam matches.

Break Points Saved %

60.3%

48.2%

Break Points Converted %

47.1%

36.0%

Based on each player's last 10 Challenger matches.

Head-to-Head

Zdenek Kolar 0 – 0 Alex Barrena

Clay Tulln challenger · 2026-09-11

QF

Alex Barrena #235

Zdenek Kolar #175

6-7 7-5 7-5

2 Aces 2

5 Double Faults 2

- Service Points -

- First Serve In -

48 First Serve Won 45

20 Second Serve Won 26

6 Break Points Saved 7

12 Break Points Faced 11

- Winners -

- Unforced Errors -

2.1 Average Odds 1.7

Zdenek Kolar vs Alex Barrena — Prediction