ATP tennis predict — Jan Kumstat vs Gonzalo Bueno

Challenger Clay Liberec challenger · F

Predicted probability

Jan Kumstat

Czech Republic

60.57%

Gonzalo Bueno

Peru

39.43%

Average Odds

1.71 / 2.05

Market probability

54.52% / 45.48%

Why This Prediction?

Jan Kumstat is the favorite because he has a higher Elo rating on clay courts (1792 vs 1703), a higher Elo rating (1763 vs 1680) and a stronger serve (64.9% vs 55.4% of service points won).

Player Comparison

1762.7 Elo 1679.9

1792.1 Elo (surface) 1703.4

17 Wins (Challenger) 103

14 Wins (surface) 101

12 Last 15 form 9

0 Head-to-head wins 0

1.034 Dominance ratio 0.926

508 Rank 160

19.6 Age 22.3

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.

Jan Kumstat

Heavy favorite (odds below 1.30) 3W–1L · 75.0%

Favorite (odds 1.30-1.80) 15W–1L · 93.8%

Even match (odds 1.80-2.20) 4W–1L · 80.0%

Underdog (odds 2.20-4.00) 2W–1L · 66.7%

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

28 matches with market odds since 2026-05-31.

Gonzalo Bueno

Heavy favorite (odds below 1.30) 2W–0L · 100.0%

Favorite (odds 1.30-1.80) 6W–3L · 66.7%

Even match (odds 1.80-2.20) 1W–2L · 33.3%

Underdog (odds 2.20-4.00) 2W–4L · 33.3%

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

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

Serve & Return

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

Jan Kumstat Gonzalo Bueno

1st Serve In %

—

61.3%

1st Serve Points Won %

—

62.4%

2nd Serve Points Won %

—

51.0%

Return Points Won vs 1st Serve %

—

28.5%

Return Points Won vs 2nd Serve %

—

53.0%

Aces per Service Game

—

0.18

Double Faults per Service Game

—

0.26

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

1st Serve In %

56.9%

58.5%

1st Serve Points Won %

70.6%

60.4%

2nd Serve Points Won %

52.0%

45.9%

Return Points Won vs 1st Serve %

23.5%

34.3%

Return Points Won vs 2nd Serve %

44.9%

43.1%

Aces per Service Game

0.59

0.12

Double Faults per Service Game

0.37

0.34

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.

Jan Kumstat Gonzalo Bueno

Break Points Saved %

—

68.8%

Break Points Converted %

—

48.9%

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

Break Points Saved %

61.5%

64.6%

Break Points Converted %

28.3%

31.6%

Based on each player's last 10 Challenger matches.

Head-to-Head

Jan Kumstat 0 – 0 Gonzalo Bueno

Clay Liberec challenger · 2026-08-02

F

Jan Kumstat #508

Gonzalo Bueno #160

6-3 6-1

6 Aces 2

1 Double Faults 1

40 Service Points 57

21 First Serve In 25

19 First Serve Won 11

15 Second Serve Won 18

1 Break Points Saved 7

1 Break Points Faced 11

- Winners -

- Unforced Errors -

1.7 Average Odds 2.0

Jan Kumstat vs Gonzalo Bueno — Prediction