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Zachary Svajda vs Stefan Kozlov — Prediction

ATP Hard Washington · qualification - 1. round

Predicted probability

Zachary Svajda

USA

69.13%

Stefan Kozlov

USA

30.87%

Average Odds

1.16  /  4.75

Market probability

80.37%  /  19.63%

Why This Prediction?

Zachary Svajda is the favorite because he has a stronger serve (65.3% vs 50.9% of service points won), a higher Elo rating on hard courts (1719 vs 1645) and a higher Elo rating (1732 vs 1671).

Player Comparison

1731.5 Elo 1671.1
1719.0 Elo (surface) 1645.3
63 Wins 39
50 Wins (surface) 25
8 Last 15 form 2
3 Head-to-head wins 0
1.013 Dominance ratio 0.814
73 Rank 296
None Age 28.5
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.

Zachary Svajda

Heavy favorite (odds below 1.30) 1W–2L · 33.3%
Favorite (odds 1.30-1.80) 4W–2L · 66.7%
Even match (odds 1.80-2.20) 1W–1L · 50.0%
Underdog (odds 2.20-4.00) 1W–1L · 50.0%
Heavy underdog (odds above 4.00) 2W–2L · 50.0%

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

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.

Serve & Return

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

Zachary Svajda Stefan Kozlov

1st Serve In %

56.8%
64.3%

1st Serve Points Won %

74.2%
53.1%

2nd Serve Points Won %

50.4%
38.9%

Return Points Won vs 1st Serve %

29.2%
35.1%

Return Points Won vs 2nd Serve %

53.8%
50.8%

Aces per Service Game

0.53
0.12

Double Faults per Service Game

0.26
0.35

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

1st Serve In %

56.0%
65.7%

1st Serve Points Won %

76.0%
66.2%

2nd Serve Points Won %

56.8%
51.6%

Return Points Won vs 1st Serve %

36.1%
37.6%

Return Points Won vs 2nd Serve %

50.7%
55.7%

Aces per Service Game

0.43
0.19

Double Faults per Service Game

0.20
0.25

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.

Zachary Svajda Stefan Kozlov

Break Points Saved %

62.7%
49.5%

Break Points Converted %

48.2%
40.0%

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

Break Points Saved %

66.7%
57.1%

Break Points Converted %

52.5%
42.9%

Based on each player's last 10 Challenger matches.

Head-to-Head

Zachary Svajda 3 – 0 Stefan Kozlov

Hard Washington · 2026-07-25

qualification - 1. round

Zachary Svajda #73

Stefan Kozlov #296

7-5 6-1
5 Aces 3
3 Double Faults 2
61 Service Points 64
32 First Serve In 31
24 First Serve Won 19
16 Second Serve Won 10
4 Break Points Saved 5
6 Break Points Faced 10
- Winners -
- Unforced Errors -
1.2 Average Odds 4.8
Hard Delray Beach · 2025-02-10

Q1

Zachary Svajda #169

Stefan Kozlov #358

6-3 6-0
4 Aces 0
0 Double Faults 2
47 Service Points 45
28 First Serve In 30
18 First Serve Won 14
14 Second Serve Won 6
3 Break Points Saved 2
4 Break Points Faced 7
- Winners -
- Unforced Errors -
- Average Odds -
Hard Dallas · 2023-02-06

Q2

Zachary Svajda #265

Stefan Kozlov #224

6-3 6-4
5 Aces 5
0 Double Faults 4
61 Service Points 65
34 First Serve In 34
20 First Serve Won 22
14 Second Serve Won 10
2 Break Points Saved 3
5 Break Points Faced 8
- Winners -
- Unforced Errors -
- Average Odds -
Hard Cary 2 CH · 2021-09-13

R32

Zachary Svajda #476

Stefan Kozlov #301

7-5 2-0 RET
4 Aces 2
1 Double Faults 5
38 Service Points 44
21 First Serve In 20
16 First Serve Won 13
8 Second Serve Won 9
1 Break Points Saved 4
3 Break Points Faced 8
- Winners -
- Unforced Errors -
- Average Odds -

Zachary Svajda — Last 10

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Stefan Kozlov — Last 10

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