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Colton Smith vs Jerome Kym — Prediction

Grand Slam Hard US Open · qualification - 2. round 01:20

Predicted probability

Colton Smith

USA

38.31%

Jerome Kym

Switzerland

61.69%

Average Odds

2.78  /  1.42

Market probability

33.81%  /  66.19%

Why This Prediction?

Jerome Kym is the favorite because he has a higher Elo rating on hard courts (1661 vs 1562), a higher Elo rating (1756 vs 1686) and a stronger serve (68.6% vs 60.3% of service points won).

Player Comparison

1685.9 Elo 1756.3
1562.3 Elo (surface) 1661.1
17 Wins 22
10 Wins (surface) 15
6 Last 15 form 11
0 Head-to-head wins 0
0.911 Dominance ratio 1.223
221 Rank 178
23.5 Age 23.5
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.

Colton Smith

Heavy favorite (odds below 1.30) 4W–1L · 80.0%
Favorite (odds 1.30-1.80) 6W–4L · 60.0%
Even match (odds 1.80-2.20) 2W–1L · 66.7%
Underdog (odds 2.20-4.00) 0W–2L · 0.0%
Heavy underdog (odds above 4.00) 0W–0L · 0.0%

20 matches with market odds since 2026-05-27.

Jerome Kym

Heavy favorite (odds below 1.30) 4W–1L · 80.0%
Favorite (odds 1.30-1.80) 7W–4L · 63.6%
Even match (odds 1.80-2.20) 1W–1L · 50.0%
Underdog (odds 2.20-4.00) 0W–2L · 0.0%
Heavy underdog (odds above 4.00) 0W–0L · 0.0%

20 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.

Colton Smith Jerome Kym

1st Serve In %

62.6%
62.0%

1st Serve Points Won %

68.9%
78.6%

2nd Serve Points Won %

45.8%
50.0%

Return Points Won vs 1st Serve %

31.5%
27.7%

Return Points Won vs 2nd Serve %

44.9%
50.5%

Aces per Service Game

0.53
0.97

Double Faults per Service Game

0.30
0.34

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

1st Serve In %

60.1%
58.4%

1st Serve Points Won %

68.7%
72.7%

2nd Serve Points Won %

49.1%
48.9%

Return Points Won vs 1st Serve %

34.5%
26.4%

Return Points Won vs 2nd Serve %

47.8%
45.4%

Aces per Service Game

0.33
0.53

Double Faults per Service Game

0.30
0.20

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.

Colton Smith Jerome Kym

Break Points Saved %

50.0%
71.4%

Break Points Converted %

38.2%
32.9%

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

Break Points Saved %

65.6%
48.9%

Break Points Converted %

42.5%
33.9%

Based on each player's last 10 Challenger matches.

Head-to-Head

Colton Smith 00 Jerome Kym

Hard US Open · 2026-08-27

qualification - 2. round

Colton Smith #221

Jerome Kym #178

7-6 2-6 6-4
9 Aces 5
6 Double Faults 5
107 Service Points 90
68 First Serve In 59
46 First Serve Won 45
20 Second Serve Won 15
5 Break Points Saved 5
7 Break Points Faced 8
22 Winners 21
31 Unforced Errors 31
2.2 Average Odds 1.5

Colton Smith — Last 10

W L W W L L L L L W

Jerome Kym — Last 10

L L W L W W W W L W