ATP tennis predict — Guido Ivan Justo vs Sascha Gueymard Wayenburg

Challenger Clay Liberec challenger · 1. round

Predicted probability

Guido Ivan Justo

Argentina

49.60%

Sascha Gueymard Wayenburg

France

50.40%

Average Odds

1.75 / 1.99

Market probability

53.21% / 46.79%

Why This Prediction?

This is a very close match — there is no significant statistical edge for either player.

Player Comparison

1608.9 Elo 1546.8

1625.5 Elo (surface) 1536.1

83 Wins (Challenger) 56

83 Wins (surface) 19

9 Last 15 form 7

0 Head-to-head wins 0

0.992 Dominance ratio 1.130

223 Rank 313

28.6 Age 23.0

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.

Guido Ivan Justo

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

Favorite (odds 1.30-1.80) 5W–3L · 62.5%

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) 0W–1L · 0.0%

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

Sascha Gueymard Wayenburg

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

Favorite (odds 1.30-1.80) 6W–1L · 85.7%

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

Underdog (odds 2.20-4.00) 4W–4L · 50.0%

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

21 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.

Guido Ivan Justo Sascha Gueymard Wayenburg

1st Serve In %

59.5%

61.7%

1st Serve Points Won %

52.1%

68.4%

2nd Serve Points Won %

50.0%

48.1%

Return Points Won vs 1st Serve %

23.1%

31.1%

Return Points Won vs 2nd Serve %

45.7%

44.9%

Aces per Service Game

0.11

0.42

Double Faults per Service Game

0.11

0.33

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

1st Serve In %

66.9%

55.9%

1st Serve Points Won %

62.1%

65.6%

2nd Serve Points Won %

50.0%

48.7%

Return Points Won vs 1st Serve %

34.0%

31.2%

Return Points Won vs 2nd Serve %

47.5%

55.7%

Aces per Service Game

0.17

0.32

Double Faults per Service Game

0.18

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.

Guido Ivan Justo Sascha Gueymard Wayenburg

Break Points Saved %

18.8%

66.3%

Break Points Converted %

36.4%

28.0%

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

Break Points Saved %

57.1%

54.4%

Break Points Converted %

45.8%

44.6%

Based on each player's last 10 Challenger matches.

Head-to-Head

Guido Ivan Justo 0 – 0 Sascha Gueymard Wayenburg

Clay Liberec challenger · 2026-07-28

1. round

Guido Ivan Justo #223

Sascha Gueymard Wayenburg #313

6-4 6-4

2 Aces 4

1 Double Faults 7

61 Service Points 71

42 First Serve In 35

28 First Serve Won 20

12 Second Serve Won 18

0 Break Points Saved 7

2 Break Points Faced 11

- Winners -

- Unforced Errors -

1.8 Average Odds 2.0

Guido Ivan Justo vs Sascha Gueymard Wayenburg — Prediction