ATP tennis predict — Constantin Bittoun Kouzmine vs Daniil Ostapenkov

Challenger Hard Istanbul challenger · 1. round

Predicted probability

Constantin Bittoun Kouzmine

France

61.03%

Daniil Ostapenkov

Belarus

38.97%

Average Odds

2.49 / 1.50

Market probability

37.59% / 62.41%

Why This Prediction?

Constantin Bittoun Kouzmine is the favorite because he has a higher Elo rating (1499 vs 1434), a stronger return game (41.9% vs 38.5% of return points won) and a higher Elo rating on hard courts (1539 vs 1489).

Player Comparison

1499.5 Elo 1433.8

1539.5 Elo (surface) 1489.0

25 Wins (Challenger) 10

16 Wins (surface) 6

8 Last 15 form 9

0 Head-to-head wins 0

1.160 Dominance ratio 1.055

424 Rank 533

27.6 Age 23.2

left Hand right

Performance vs. the Odds

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

Constantin Bittoun Kouzmine

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

Favorite (odds 1.30-1.80) 2W–1L · 66.7%

Even match (odds 1.80-2.20) 0W–2L · 0.0%

Underdog (odds 2.20-4.00) 3W–6L · 33.3%

Heavy underdog (odds above 4.00) 1W–1L · 50.0%

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

Daniil Ostapenkov

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

Favorite (odds 1.30-1.80) 1W–2L · 33.3%

Even match (odds 1.80-2.20) 0W–0L · 0.0%

Underdog (odds 2.20-4.00) 0W–3L · 0.0%

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

8 matches with market odds since 2026-08-02.

Serve & Return

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

Constantin Bittoun Kouzmine Daniil Ostapenkov

1st Serve In %

—

52.3%

1st Serve Points Won %

—

59.3%

2nd Serve Points Won %

—

34.9%

Return Points Won vs 1st Serve %

—

29.0%

Return Points Won vs 2nd Serve %

—

55.2%

Aces per Service Game

—

0.12

Double Faults per Service Game

—

0.56

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

1st Serve In %

62.9%

61.5%

1st Serve Points Won %

67.8%

74.5%

2nd Serve Points Won %

51.4%

45.2%

Return Points Won vs 1st Serve %

30.5%

25.3%

Return Points Won vs 2nd Serve %

47.8%

42.8%

Aces per Service Game

0.37

0.38

Double Faults per Service Game

0.25

0.39

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.

Constantin Bittoun Kouzmine Daniil Ostapenkov

Break Points Saved %

—

50.0%

Break Points Converted %

—

63.6%

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

Break Points Saved %

60.5%

49.2%

Break Points Converted %

39.2%

43.2%

Based on each player's last 10 Challenger matches.

Head-to-Head

Constantin Bittoun Kouzmine 0 – 0 Daniil Ostapenkov

Hard Istanbul challenger · 2026-08-04

1. round

Daniil Ostapenkov #533

Constantin Bittoun Kouzmine #424

3-6 6-3 7-6

4 Aces 20

0 Double Faults 5

94 Service Points 102

67 First Serve In 60

52 First Serve Won 46

11 Second Serve Won 23

4 Break Points Saved 8

6 Break Points Faced 10

- Winners -

- Unforced Errors -

1.5 Average Odds 2.5

Constantin Bittoun Kouzmine vs Daniil Ostapenkov — Prediction