Tennis · Challenger Santa Cruz · 14/10, 16:00
Prediction: Guido Ivan Justo vs Juan Manuel La Serna
Team pages: Guido Ivan Justo · Juan Manuel La Serna
Prediction summary
Winner
Guido Ivan Justo
Juan Manuel La Serna
Estimated games
23.2
Recent form · 10 last
Guido Ivan Justo
6-4 (W-L)
Juan Manuel La Serna
7-3 (W-L)
Head-to-head
Guido Ivan Justo
2–1
Juan Manuel La Serna
(3 last)
- 09 Apr2-0 12-7W
- 31 Mar1-2 14-15L
- 27 Jun2-0 13-6W
Our model (Elo) vs Market
Rating Elo · Guido Ivan Justo 1620 · Juan Manuel La Serna 1545
| Guido Ivan Justo | Juan Manuel La Serna | |
|---|---|---|
| Our model | 61% | 39% |
| Market | 58% | 42% |
The bar above blends our model with the market: where our probability diverges most from the odds is where the model sees the widest gap.
Match keys
- Our model (surface Elo, opponent-adjusted) favours Guido Ivan Justo (rating 1620 vs 1545).
- Head-to-head: Guido Ivan Justo 2–1 Juan Manuel La Serna (3).
Statistics
| Guido Ivan Justo | Juan Manuel La Serna | |
|---|---|---|
| Win % | 80% | 60% |
| Win % · Clay | 89% (9) | 60% (10) |
| Sets (G-P) | 1.6-0.8 | 1.6-1 |
| Games (G-P) | 13.1-9.6 | 12.9-11.4 |
| Aces | 3.5 | 1.5 |
| Double faults | 3 | 2.8 |
| 1st serve % | 66.8% | 68.9% |
| Break % | 50.5% | 48.7% |
Estimated total games (ours)
23.2
H2H · Guido Ivan Justo 2 – 1 Juan Manuel La Serna (3)
Head-to-head (H2H) · Guido Ivan Justo 2–1 Juan Manuel La Serna
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| Date | Sets | Games | Res. |
|---|---|---|---|
| 09/04/26 Challenger Campinas | 2-0 | 12-7 | W |
| 31/03/26 Challenger Sao Leopoldo | 1-2 | 14-15 | L |
| 27/06/23 ITF M25 Rosario | 2-0 | 13-6 | W |
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Guido Ivan Justo
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| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 13/10 | Arklon Huertas del Pino Cordova Challenger Santa Cruz · Clay |
2-1 | 14-7 | W |
| 06/10 | Francisco Comesana Challenger Antofagasta · Clay |
2-1 | 19-14 | W |
| 04/10 | Gustavo Heide Challenger Curitiba · Clay |
2-0 | 12-5 | W |
| 03/10 | Tomas Barrios Vera Challenger Curitiba · Clay |
2-1 | 16-13 | W |
| 02/10 | Gonzalo Villanueva Challenger Curitiba · Clay |
2-0 | 12-6 | W |
| 01/10 | Pedro Sakamoto Challenger Curitiba · Clay |
2-0 | 12-6 | W |
| 30/09 | Franco Roncadelli Challenger Curitiba · Clay |
2-0 | 13-8 | W |
| 23/09 | Facundo Mena Challenger Buenos Aires · Clay |
0-2 | 10-13 | L |
| 22/09 | Gonzalo Villanueva Challenger Buenos Aires · Clay |
2-1 | 15-11 | W |
| 25/08 | Hugo Gaston US Open · Hard |
0-2 | 8-13 | L |
Juan Manuel La Serna
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| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 13/10 | Hernan Casanova Challenger Santa Cruz · Clay |
2-0 | 12-7 | W |
| 10/09 | Lukas Neumayer Challenger Tulln · Clay |
1-2 | 13-19 | L |
| 08/09 | Filip Cristian Jianu Challenger Tulln · Clay |
2-1 | 15-13 | W |
| 04/09 | Yanaki Milev Challenger Plovdiv · Clay |
1-2 | 10-15 | L |
| 03/09 | Nikita Mashtakov Challenger Plovdiv · Clay |
2-0 | 12-6 | W |
| 01/09 | Alexander Vasilev Challenger Plovdiv · Clay |
2-0 | 12-3 | W |
| 26/08 | Hynek Barton Challenger Augsburg · Clay |
1-2 | 13-14 | L |
| 25/08 | Benjamin Hassan Challenger Augsburg · Clay |
2-1 | 16-13 | W |
| 20/08 | Tommaso Compagnucci Challenger Sion · Clay |
1-2 | 14-18 | L |
| 18/08 | Facundo Mena Challenger Sion · Clay |
2-0 | 12-6 | W |
Frequently asked questions
Who is the favourite in Guido Ivan Justo vs Juan Manuel La Serna?
Our model gives 59% to Guido Ivan Justo, using surface Elo on clay.
What is the prediction based on?
On an Elo model by surface (clay) adjusted for opponent quality, compared with the market odds.

