ATP tennis predict — Chun Hsin Tseng vs Jan Kumstat

Challenger Clay Prague 2 challenger · F 13:00

Predicted probability

Chun Hsin Tseng

Chinese Taipei

23.66%

Jan Kumstat

Czech Republic

76.34%

Average Odds

2.76 / 1.41

Market probability

33.81% / 66.19%

Why This Prediction?

Jan Kumstat is the favorite because he has a higher Elo rating (1924 vs 1662), a higher Elo rating on clay courts (1956 vs 1711) and the advantage of playing in his home country.

Player Comparison

1661.6 Elo 1923.9

1710.9 Elo (surface) 1956.0

188 Wins (Challenger) 29

131 Wins (surface) 24

9 Last 15 form 15

0 Head-to-head wins 0

1.115 Dominance ratio 0.989

269 Rank 347

25.0 Age 19.6

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.

Chun Hsin Tseng

Heavy favorite (odds below 1.30) 3W–2L · 60.0%

Favorite (odds 1.30-1.80) 9W–3L · 75.0%

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–0L · 0.0%

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

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.

Serve & Return

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

Chun Hsin Tseng Jan Kumstat

1st Serve In %

62.1%

—

1st Serve Points Won %

65.3%

—

2nd Serve Points Won %

47.3%

—

Return Points Won vs 1st Serve %

23.5%

—

Return Points Won vs 2nd Serve %

51.1%

—

Aces per Service Game

0.22

—

Double Faults per Service Game

0.32

—

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

1st Serve In %

60.2%

56.9%

1st Serve Points Won %

73.5%

70.6%

2nd Serve Points Won %

55.1%

52.0%

Return Points Won vs 1st Serve %

33.0%

23.5%

Return Points Won vs 2nd Serve %

55.1%

44.9%

Aces per Service Game

0.29

0.59

Double Faults per Service Game

0.08

0.37

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.

Chun Hsin Tseng Jan Kumstat

Break Points Saved %

50.0%

—

Break Points Converted %

27.8%

—

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

Break Points Saved %

59.6%

61.5%

Break Points Converted %

39.0%

28.3%

Based on each player's last 10 Challenger matches.

Head-to-Head

Chun Hsin Tseng 0 – 0 Jan Kumstat

Clay Prague 2 challenger · 2026-08-22

F

Jan Kumstat #347

Chun Hsin Tseng #269

5-7 6-3 6-0

2 Aces 3

7 Double Faults 2

89 Service Points 75

52 First Serve In 39

33 First Serve Won 32

15 Second Serve Won 22

7 Break Points Saved 3

12 Break Points Faced 5

- Winners -

- Unforced Errors -

1.4 Average Odds 2.8

Chun Hsin Tseng vs Jan Kumstat — Prediction