ATP

Guido Ivan Justo

28.8 years oldDate of birth: December 17, 1997

Current ATP ranking: 189
Points (live): 315; +8 since the start of the tournament

Photo: Hameltion / Wikimedia Commons, CC BY-SA 4.0

Profile

Best ranking: No. 188 (October 5, 2026)

In brief

Guido Ivan Justo is No. 189 in the ATP rankings with 315 points. Ahead is Alexis Galarneau (No. 188) with 0 more points; behind is Harold Mayot (No. 190) with 6 fewer. Up 42 places since September 9, 2026. Last 10 matches: 7 wins and 3 losses.

Current tournament progress

Antofagasta Challenger

Round of 16 (eliminated)

Next (next round): —
Max (if they win the tournament): —

Last match

vs Joao Lucas Reis Da Silva7-5 ret.

Antofagasta Challenger 2026 · Challenger 75 · Round of 16 · Clay

H2H

Form

Last 11 matches

8 wins, 3 losses

Balance+5

Buenos Aires Challenger 2025Antofagasta 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
Antofagasta Challenger 2026 · Challenger 75 · Clay
L	Round of 16	Joao Lucas Reis Da Silva	7-5 ret.	H2H
W	R32	Francisco Comesana	6-7⁶ 7-6⁴ 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	7-6⁶ 6-2	H2H
Buenos Aires Challenger 2026 · Challenger 75 · Clay
L	Round of 16	Facundo Mena	6-4 7-6⁰	H2H
W	R32	Gonzalo Villanueva	6-4 3-6 6-1	H2H
Buenos Aires Challenger 2025 · Challenger 75 · Clay
L	Quarterfinal	Alex Barrena	6-2 6-7¹ 6-3	H2H

Matches from the tournaments tracked by the site, most recent first.

Ranking trend

Points trend

Season results

Year	Tournament	Round	Points
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	Buenos Aires Challenger · Challenger 75	Quarterfinal	15