ATP tennis predict — Stefan Kozlov vs Harry Wendelken

Challenger Hard Brownsburg challenger · R16 17:30

Predicted probability

Stefan Kozlov

USA

59.18%

Harry Wendelken

Great Britain

40.82%

Average Odds

1.92 / 1.79

Market probability

48.25% / 51.75%

Why This Prediction?

Stefan Kozlov is the favorite because he has a higher Elo rating (1662 vs 1564), more wins on hard courts (25 vs 0) and the advantage of playing in his home country.

Player Comparison

1662.5 Elo 1564.5

1635.9 Elo (surface) 1682.8

218 Wins (Challenger) 47

164 Wins (surface) 41

8 Last 15 form 8

0 Head-to-head wins 1

1.153 Dominance ratio 1.118

295 Rank 201

28.5 Age 24.6

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.

Stefan Kozlov

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

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

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

Underdog (odds 2.20-4.00) 1W–3L · 25.0%

Heavy underdog (odds above 4.00) 1W–2L · 33.3%

13 matches with market odds since 2026-07-05.

Harry Wendelken

Heavy favorite (odds below 1.30) 0W–0L · 0.0%

Favorite (odds 1.30-1.80) 3W–2L · 60.0%

Even match (odds 1.80-2.20) 2W–2L · 50.0%

Underdog (odds 2.20-4.00) 2W–5L · 28.6%

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

16 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.

Stefan Kozlov Harry Wendelken

1st Serve In %

64.3%

54.8%

1st Serve Points Won %

53.1%

69.9%

2nd Serve Points Won %

38.9%

49.1%

Return Points Won vs 1st Serve %

35.1%

28.5%

Return Points Won vs 2nd Serve %

50.8%

46.5%

Aces per Service Game

0.12

0.48

Double Faults per Service Game

0.35

0.30

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

1st Serve In %

65.7%

58.6%

1st Serve Points Won %

66.2%

69.5%

2nd Serve Points Won %

51.6%

48.9%

Return Points Won vs 1st Serve %

37.6%

31.3%

Return Points Won vs 2nd Serve %

55.7%

56.9%

Aces per Service Game

0.19

0.61

Double Faults per Service Game

0.25

0.38

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.

Stefan Kozlov Harry Wendelken

Break Points Saved %

49.5%

68.0%

Break Points Converted %

40.0%

39.5%

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

Break Points Saved %

57.1%

57.4%

Break Points Converted %

42.9%

44.7%

Based on each player's last 10 Challenger matches.

Head-to-Head

Stefan Kozlov 0 – 1 Harry Wendelken

Hard Brownsburg challenger · 2026-08-13

R16

Harry Wendelken #201

Stefan Kozlov #295

2-6 6-4 6-1

- Aces -

- Double Faults -

- Service Points -

- First Serve In -

- First Serve Won -

- Second Serve Won -

- Break Points Saved -

- Break Points Faced -

- Winners -

- Unforced Errors -

1.8 Average Odds 1.9

Hard Glasgow CH · 2026-01-12

R32

Harry Wendelken #316

Stefan Kozlov #280

6-1 3-6 6-4

6 Aces 7

3 Double Faults 5

80 Service Points 74

36 First Serve In 45

28 First Serve Won 31

23 Second Serve Won 10

4 Break Points Saved 3

7 Break Points Faced 8

- Winners -

- Unforced Errors -

- Average Odds -

Stefan Kozlov vs Harry Wendelken — Prediction