ATP tennis predict — Karen Khachanov vs Alexander Blockx

Grand Slam Hard US Open · QF 20:30

Predicted probability

Karen Khachanov

Russia

38.55%

Alexander Blockx

Belgium

61.45%

Average Odds

1.58 / 2.38

Market probability

60.10% / 39.90%

Why This Prediction?

Alexander Blockx is the favorite because he has a higher Elo rating on hard courts (1920 vs 1910), a higher Elo rating (2054 vs 1972) and a stronger serve (67.3% vs 64.4% of service points won).

Player Comparison

1971.9 Elo 2053.8

1910.5 Elo (surface) 1920.0

346 Wins 45

221 Wins (surface) 24

9 Last 15 form 9

0 Head-to-head wins 0

0.970 Dominance ratio 1.107

50 Rank 34

30.3 Age 21.4

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.

Karen Khachanov

Heavy favorite (odds below 1.30) 3W–0L · 100.0%

Favorite (odds 1.30-1.80) 4W–6L · 40.0%

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

Underdog (odds 2.20-4.00) 2W–0L · 100.0%

Heavy underdog (odds above 4.00) 0W–1L · 0.0%

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

Alexander Blockx

Heavy favorite (odds below 1.30) 3W–0L · 100.0%

Favorite (odds 1.30-1.80) 4W–3L · 57.1%

Even match (odds 1.80-2.20) 2W–0L · 100.0%

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

Heavy underdog (odds above 4.00) 0W–1L · 0.0%

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

Serve & Return

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

Karen Khachanov Alexander Blockx

1st Serve In %

57.3%

56.0%

1st Serve Points Won %

72.3%

77.9%

2nd Serve Points Won %

47.0%

50.3%

Return Points Won vs 1st Serve %

22.9%

31.9%

Return Points Won vs 2nd Serve %

49.2%

53.6%

Aces per Service Game

0.55

0.65

Double Faults per Service Game

0.30

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

1st Serve In %

54.6%

59.8%

1st Serve Points Won %

72.5%

75.9%

2nd Serve Points Won %

53.0%

52.1%

Return Points Won vs 1st Serve %

29.9%

35.8%

Return Points Won vs 2nd Serve %

50.3%

44.0%

Aces per Service Game

0.59

Double Faults per Service Game

0.29

0.10

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.

Karen Khachanov Alexander Blockx

Break Points Saved %

64.8%

59.4%

Break Points Converted %

42.6%

38.8%

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

Break Points Saved %

68.1%

61.0%

Break Points Converted %

33.7%

35.2%

Based on each player's last 10 Challenger matches.

Head-to-Head

Karen Khachanov 0 – 0 Alexander Blockx

Hard US Open · 2026-09-09

QF

Karen Khachanov #50

Alexander Blockx #34

6-2 7-5 3-2

6 Aces 8

2 Double Faults 4

- Service Points -

- First Serve In -

32 First Serve Won 29

19 Second Serve Won 16

2 Break Points Saved 2

2 Break Points Faced 6

26 Winners 21

21 Unforced Errors 26

1.6 Average Odds 2.4

Karen Khachanov vs Alexander Blockx — Prediction