ATP tennis predict — Gustavo Heide vs Guido Ivan Justo

Challenger Clay Curitiba challenger · F 17:00

Predicted probability

Gustavo Heide

Brazil

71.36%

Guido Ivan Justo

Argentina

28.64%

Average Odds

1.26 / 3.58

Market probability

73.97% / 26.03%

Why This Prediction?

Gustavo Heide is the favorite because he has a higher Elo rating (1824 vs 1726), a higher Elo rating on clay courts (1877 vs 1742) and a stronger serve (63.7% vs 47.8% of service points won).

Player Comparison

1823.6 Elo 1726.4

1877.5 Elo (surface) 1741.6

107 Wins (Challenger) 89

96 Wins (surface) 89

11 Last 15 form 9

1 Head-to-head wins 0

0.985 Dominance ratio 1.020

122 Rank 239

24.6 Age 28.8

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.

Gustavo Heide

Heavy favorite (odds below 1.30) 8W–1L · 88.9%

Favorite (odds 1.30-1.80) 7W–4L · 63.6%

Even match (odds 1.80-2.20) 0W–3L · 0.0%

Underdog (odds 2.20-4.00) 1W–1L · 50.0%

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

25 matches with market odds since 2026-06-20.

Guido Ivan Justo

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

Favorite (odds 1.30-1.80) 8W–3L · 72.7%

Even match (odds 1.80-2.20) 1W–1L · 50.0%

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

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

Gustavo Heide Guido Ivan Justo

1st Serve In %

56.4%

59.5%

1st Serve Points Won %

73.1%

52.1%

2nd Serve Points Won %

49.3%

50.0%

Return Points Won vs 1st Serve %

28.2%

23.1%

Return Points Won vs 2nd Serve %

45.7%

Aces per Service Game

0.35

0.11

Double Faults per Service Game

0.38

0.11

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

1st Serve In %

58.8%

67.6%

1st Serve Points Won %

67.8%

55.3%

2nd Serve Points Won %

57.3%

50.7%

Return Points Won vs 1st Serve %

32.2%

34.4%

Return Points Won vs 2nd Serve %

46.6%

54.8%

Aces per Service Game

0.30

0.12

Double Faults per Service Game

0.22

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.

Gustavo Heide Guido Ivan Justo

Break Points Saved %

63.3%

18.8%

Break Points Converted %

27.5%

36.4%

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

Break Points Saved %

61.1%

53.9%

Break Points Converted %

35.9%

48.8%

Based on each player's last 10 Challenger matches.

Head-to-Head

Gustavo Heide 1 – 0 Guido Ivan Justo

Clay Campinas CH · 2026-04-06

QF

Gustavo Heide #262

Guido Ivan Justo #269

6-3 6-4

4 Aces 0

3 Double Faults 0

45 Service Points 62

21 First Serve In 37

14 First Serve Won 19

17 Second Serve Won 12

0 Break Points Saved 5

2 Break Points Faced 10

- Winners -

- Unforced Errors -

- Average Odds -

Gustavo Heide vs Guido Ivan Justo — Prediction