ATP
Guido Ivan Justo
28.9 years old Date of birth: December 17, 1997- Current ATP ranking
- 189
- Current points
- 308
Photo: Hameltion / Wikimedia Commons, CC BY-SA 4.0
Profile
- Best ranking
- No. 182 (October 26, 2026)
Guido Ivan Justo is No. 189 in the ATP rankings with 308 points. Ahead is Keegan Smith (No. 188) with 2 more points; behind is Jan Kumstat (No. 190) with 0 fewer. Up 49 places since September 9, 2026. Last 10 matches: 7 wins and 3 losses.
Ranking trend
Points trend
Last match
LH2H
vs Juan Manuel La Serna 6-1 ret.
Santa Cruz de la Sierra 2 Challenger 2026 · Challenger 75 · Round of 16 · Clay
Form
Last 13 matches
8 wins, 5 losses
Balance +3
Buenos Aires Challenger 2025 Santa Cruz de la Sierra 2 Challenger 2026
The line starts at 0, goes up by one for every win and down by one for every loss. Walkovers excluded.
Recent matches
| Result | Round | Opponent | Score | Head to head |
|---|---|---|---|---|
| Santa Cruz de la Sierra 2 Challenger 2026 · Challenger 75 · Clay | ||||
| L | Round of 16 | Juan Manuel La Serna | 6-1 ret. | H2H |
| Antofagasta Challenger 2026 · Challenger 75 · Clay | ||||
| L | Round of 16 | Joao Lucas Reis Da Silva | 7-5 ret. | H2H |
| W | R32 | Francisco Comesana | 6-7(6) 7-6(4) 6-1 | H2H |
| Curitiba Challenger 2026 · Challenger 75 · Clay | ||||
| W | Final | Gustavo Heide | 6-1 6-4 | H2H |
| W | Semifinal | Tomas Barrios Vera | 4-6 6-4 6-3 | H2H |
| W | Quarterfinal | Gonzalo Villanueva | 6-2 6-4 | H2H |
| W | Round of 16 | Pedro Sakamoto | 6-2 6-4 | H2H |
| W | R32 | Franco Roncadelli | 7-6(6) 6-2 | H2H |
| Buenos Aires Challenger 2026 · Challenger 75 · Clay | ||||
| L | Round of 16 | Facundo Mena | 6-4 7-6(0) | H2H |
| W | R32 | Gonzalo Villanueva | 6-4 3-6 6-1 | H2H |
Matches from the tournaments tracked by the site, most recent first.
Season results
| Year | Tournament | Round | Points |
|---|---|---|---|
| 2026 | Santa Cruz de la Sierra 2 Challenger · Challenger 75 | Round of 16 | 8 |
| 2026 | Antofagasta Challenger · Challenger 75 | Round of 16 | 8 |
| 2026 | Curitiba Challenger · Challenger 75 | Winner | 75 |
| 2026 | Buenos Aires Challenger · Challenger 75 | Round of 16 | 8 |
| 2025 | Cali Challenger · Challenger 75 | R32 | 3 |
| 2025 | Buenos Aires Challenger · Challenger 75 | Quarterfinal | 15 |
Ranking neighbours
| Pos. | Player | Points | Gap |
|---|---|---|---|
| 187 |  Inaki Montes-De La Torre | 312 | +4 |
| 188 |  Keegan Smith | 310 | +2 |
| 189 | Guido Ivan Justo | 308 | — |
| 190 |  Jan Kumstat | 308 | 0 |
| 191 |  Jack Pinnington Jones | 302 | -6 |
Most played rivalries
- Gonzalo Villanueva (2-0 in 2)
- Pedro Sakamoto (1-0 in 1)
- Facundo Mena (0-1 in 1)