ATP tennis predict — Gonzalo Villanueva vs Guido Ivan Justo

Challenger Clay Buenos Aires challenger · 1. round 23:30

Predicted probability

Gonzalo Villanueva

Argentina

40.31%

Guido Ivan Justo

Argentina

59.69%

Average Odds

1.91 / 1.81

Market probability

48.66% / 51.34%

Why This Prediction?

Guido Ivan Justo is the favorite because he has fewer double faults per game (0.06 vs 0.25), a better head-to-head record against Gonzalo Villanueva (4-0) and more aces per game (0.06 vs 0.05).

Player Comparison

1671.7 Elo 1665.0

1687.3 Elo (surface) 1681.2

182 Wins (Challenger) 84

171 Wins (surface) 84

11 Last 15 form 9

0 Head-to-head wins 4

1.282 Dominance ratio 1.020

328 Rank 233

31.7 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.

Gonzalo Villanueva

Heavy favorite (odds below 1.30) 2W–0L · 100.0%

Favorite (odds 1.30-1.80) 3W–0L · 100.0%

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

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

Heavy underdog (odds above 4.00) 1W–0L · 100.0%

16 matches with market odds since 2026-06-22.

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.

Serve & Return

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

Gonzalo Villanueva Guido Ivan Justo

1st Serve In %

58.7%

59.5%

1st Serve Points Won %

63.7%

52.1%

2nd Serve Points Won %

44.2%

50.0%

Return Points Won vs 1st Serve %

31.4%

23.1%

Return Points Won vs 2nd Serve %

50.0%

45.7%

Aces per Service Game

0.11

Double Faults per Service Game

0.51

0.11

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

1st Serve In %

62.7%

66.9%

1st Serve Points Won %

63.0%

62.1%

2nd Serve Points Won %

57.5%

50.0%

Return Points Won vs 1st Serve %

38.4%

34.0%

Return Points Won vs 2nd Serve %

57.7%

47.5%

Aces per Service Game

0.22

0.17

Double Faults per Service Game

0.16

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.

Gonzalo Villanueva Guido Ivan Justo

Break Points Saved %

50.0%

18.8%

Break Points Converted %

45.5%

36.4%

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

Break Points Saved %

57.9%

57.1%

Break Points Converted %

47.1%

45.8%

Based on each player's last 10 Challenger matches.

Head-to-Head

Gonzalo Villanueva 0 – 4 Guido Ivan Justo

Clay Buenos Aires challenger · 2026-09-22

1. round

Guido Ivan Justo #233

Gonzalo Villanueva #328

6-4 3-6 6-1

3 Aces 5

6 Double Faults 1

- Service Points -

- First Serve In -

28 First Serve Won 39

14 Second Serve Won 10

4 Break Points Saved 4

9 Break Points Faced 7

- Winners -

- Unforced Errors -

1.8 Average Odds 1.9

Clay Tigre 2 CH · 2026-02-23

R32

Guido Ivan Justo #277

Gonzalo Villanueva #339

7-5 7-5

1 Aces 2

2 Double Faults 3

82 Service Points 65

52 First Serve In 35

34 First Serve Won 24

14 Second Serve Won 11

6 Break Points Saved 2

9 Break Points Faced 7

- Winners -

- Unforced Errors -

- Average Odds -

Clay Porto Alegre CH · 2025-04-28

R32

Guido Ivan Justo #390

Gonzalo Villanueva #414

7-6(6) 7-5

0 Aces 1

4 Double Faults 6

76 Service Points 88

49 First Serve In 53

30 First Serve Won 30

12 Second Serve Won 14

7 Break Points Saved 3

12 Break Points Faced 9

- Winners -

- Unforced Errors -

- Average Odds -

Clay Rosario CH · 2025-02-03

Q2

Guido Ivan Justo #427

Gonzalo Villanueva #413

6-4 6-4

2 Aces 1

0 Double Faults 1

60 Service Points 69

43 First Serve In 40

32 First Serve Won 26

8 Second Serve Won 12

2 Break Points Saved 3

3 Break Points Faced 6

- Winners -

- Unforced Errors -

- Average Odds -

Clay Florianopolis CH · 2023-04-17

R32

Guido Ivan Justo #849

Gonzalo Villanueva #373

6-3 6-7(2) 6-2

1 Aces 1

2 Double Faults 1

99 Service Points 84

73 First Serve In 56

49 First Serve Won 35

16 Second Serve Won 13

8 Break Points Saved 1

10 Break Points Faced 6

- Winners -

- Unforced Errors -

- Average Odds -

Gonzalo Villanueva vs Guido Ivan Justo — Prediction

Why This Prediction?

Player Comparison

Performance vs. the Odds

Serve & Return

Break Point Performance

Head-to-Head

Gonzalo Villanueva — Last 10

Guido Ivan Justo — Last 10