ATP tennis predict — Adolfo Daniel Vallejo vs Botic Van De Zandschulp

ATP Clay Bastad · R16

Predicted probability

Adolfo Daniel Vallejo

Paraguay

64.21%

Botic Van De Zandschulp

Netherlands

35.79%

Average Odds

1.85 / 1.93

Market probability

51.06% / 48.94%

Why This Prediction?

Adolfo Daniel Vallejo is the favorite because he has a higher Elo rating on clay courts (1805 vs 1750), a higher Elo rating (1750 vs 1731) and a stronger serve (63.6% vs 63.4% of service points won).

Player Comparison

1750.3 Elo 1730.7

1805.3 Elo (surface) 1749.8

15 Wins 166

12 Wins (surface) 43

9 Last 15 form 9

0 Head-to-head wins 0

1.125 Dominance ratio 0.961

71 Rank 55

22.2 Age 30.8

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.

Adolfo Daniel Vallejo

Heavy favorite (odds below 1.30) 2W–1L · 66.7%

Favorite (odds 1.30-1.80) 2W–4L · 33.3%

Even match (odds 1.80-2.20) 2W–1L · 66.7%

Underdog (odds 2.20-4.00) 2W–3L · 40.0%

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

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

Botic Van De Zandschulp

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

Favorite (odds 1.30-1.80) 8W–1L · 88.9%

Even match (odds 1.80-2.20) 0W–1L · 0.0%

Underdog (odds 2.20-4.00) 3W–4L · 42.9%

Heavy underdog (odds above 4.00) 0W–2L · 0.0%

20 matches with market odds since 2026-05-25.

Serve & Return

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

Adolfo Daniel Vallejo Botic Van De Zandschulp

1st Serve In %

60.6%

58.1%

1st Serve Points Won %

73.0%

74.2%

2nd Serve Points Won %

49.1%

44.1%

Return Points Won vs 1st Serve %

29.3%

29.2%

Return Points Won vs 2nd Serve %

55.6%

54.3%

Aces per Service Game

0.30

0.61

Double Faults per Service Game

0.31

0.41

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

1st Serve In %

62.9%

60.5%

1st Serve Points Won %

65.3%

71.1%

2nd Serve Points Won %

49.8%

45.5%

Return Points Won vs 1st Serve %

35.5%

38.6%

Return Points Won vs 2nd Serve %

54.4%

59.0%

Aces per Service Game

0.18

0.52

Double Faults per Service Game

0.27

0.40

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.

Adolfo Daniel Vallejo Botic Van De Zandschulp

Break Points Saved %

64.6%

62.0%

Break Points Converted %

48.3%

48.6%

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

Break Points Saved %

54.1%

50.0%

Break Points Converted %

50.8%

45.1%

Based on each player's last 10 Challenger matches.

Head-to-Head

Adolfo Daniel Vallejo 0 – 0 Botic Van De Zandschulp

Hard Winston Salem · 2026-08-25

2. round

Botic Van De Zandschulp #71

Adolfo Daniel Vallejo #61

6-2 6-0

6 Aces 1

1 Double Faults 7

48 Service Points 42

29 First Serve In 18

22 First Serve Won 9

11 Second Serve Won 8

1 Break Points Saved 1

1 Break Points Faced 6

11 Winners 4

17 Unforced Errors 29

1.6 Average Odds 2.3

Clay Bastad · 2026-07-15

R16

Adolfo Daniel Vallejo #71

Botic Van De Zandschulp #55

4-6 6-3 7-6

4 Aces 1

4 Double Faults 2

115 Service Points 102

78 First Serve In 67

51 First Serve Won 43

17 Second Serve Won 23

10 Break Points Saved 1

13 Break Points Faced 4

36 Winners 34

58 Unforced Errors 56

1.9 Average Odds 1.9

Adolfo Daniel Vallejo vs Botic Van De Zandschulp — Prediction