GJ
ATP · Rank #182
ATP · Rank #182
Guido Ivan Justo
28yrs
1.78 m
78 kg
Right
#184Peak Rank
72.5%Accuracy
69
Matches Analyzed
Recent Form
LWWWW
Recent & Upcoming
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G. Heide vs G. I. Justo, Challenger - Curitiba, Brazil, 19:00, Finished. Match winner odds: 1.26 for G. Heide, 3.75 for G. I. Justo. AI winner pick: G. Heide, odds 1.26, confidence 6.8 out of 10. This tip lost. Predicted score: 6-3, 6-4. Best AI tip: G. Heide, odds 1.26, confidence 6.8 out of 10. This tip lost.
G. Heide
(1)
G. I. Justo
(8)
G. I. Justo vs T. Barrios Vera, Challenger - Curitiba, Brazil, 16:00, Finished. Match winner odds: 2.8 for G. I. Justo, 1.42 for T. Barrios Vera. AI winner pick: T. Barrios Vera, odds 1.42, confidence 3.4 out of 10. This tip lost. Predicted score: 4-6, 3-6. Best AI tip: T. Barrios Vera, odds 1.42, confidence 3.4 out of 10. This tip lost.
G. I. Justo
(8)
T. Barrios Vera
(2)
G. I. Justo vs G. Villanueva, Challenger - Curitiba, Brazil, 17:15, Finished. Match winner odds: 1.6 for G. I. Justo, 2.36 for G. Villanueva. AI winner pick: G. Villanueva, odds 2.36, confidence 2.0 out of 10. This tip lost. Predicted score: 4-6, 3-6. Best AI tip: U25.5, odds 1.43, confidence 7.2 out of 10. This tip won.
G. I. Justo
(8)
G. Villanueva
G. I. Justo vs P. Sakamoto, Challenger - Curitiba, Brazil, 21:10, Finished. Match winner odds: 1.36 for G. I. Justo, 2.9 for P. Sakamoto. AI winner pick: G. I. Justo, odds 1.36, confidence 4.0 out of 10. This tip won. Predicted score: 6-3, 6-2. Best AI tip: U23.5, odds 1.62, confidence 8.3 out of 10. This tip won.
G. I. Justo
(8)
P. Sakamoto
(Q)
G. I. Justo vs F. Roncadelli, Challenger - Curitiba, Brazil, 14:00, Finished. Match winner odds: 1.8 for G. I. Justo, 2 for F. Roncadelli. AI winner pick: F. Roncadelli, odds 2, confidence 1.1 out of 10. This tip lost. Predicted score: 6-2, 3-6, 4-6. Best AI tip: O19.5, odds 1.51, confidence 4.1 out of 10. This tip won.
G. I. Justo
F. Roncadelli
19:00
Finished
1900
G. Heide
(1)
G. I. Justo
(8) 0
2
▴1.26
▾3.75
1
▴1.26
6364
1
▴1.26
6.8/10
16:00
Finished
1600
G. I. Justo
(8)
T. Barrios Vera
(2) 2
1
▴2.8
▾1.42
2
▾1.42
4636
2
▾1.42
3.4/10
17:15
Finished
1715
G. I. Justo
(8)
G. Villanueva
2
0
▴1.6
▾2.36
2
▾2.36
4636
U25.5
▴1.43
7.2/10
21:10
Finished
2110
G. I. Justo
(8)
P. Sakamoto
(Q) 2
0
▾1.36
▴2.9
1
▾1.36
6362
U23.5
▾1.62
8.3/10
14:00
Finished
1400
G. I. Justo
F. Roncadelli
2
0
1.8
2
2
2
623646
O19.5
1.51
4.1/10
F. Mena vs G. I. Justo, Challenger - Buenos Aires 2, Argentina, 19:10, Finished. Match winner odds: 1.62 for F. Mena, 2.7 for G. I. Justo. AI winner pick: F. Mena, odds 1.62, confidence 2.8 out of 10. This tip won. Predicted score: 6-4, 6-4. Best AI tip: F. Mena, odds 1.62, confidence 2.8 out of 10. This tip won.
F. Mena
(8)
G. I. Justo
G. Villanueva vs G. I. Justo, Challenger - Buenos Aires 2, Argentina, 23:00, Finished. Match winner odds: 2.2 for G. Villanueva, 1.66 for G. I. Justo. AI winner pick: G. Villanueva, odds 2.2, confidence 2.1 out of 10. This tip lost. Predicted score: 6-4, 6-4. Best AI tip: U23.5, odds 1.55, confidence 4.9 out of 10. This tip lost.
G. Villanueva
G. I. Justo
19:10
Finished
1910
F. Mena
(8)
G. I. Justo
2
0
▾1.62
▴2.7
1
▾1.62
6464
1
▾1.62
2.8/10
23:00
Finished
2300
G. Villanueva
G. I. Justo
1
2
▴2.2
▴1.66
1
▴2.2
6464
U23.5
▾1.55
4.9/10
G. I. Justo vs J. Torres, Challenger - Liberec, Czech Republic, 13:00, Finished. Match winner odds: 1.62 for G. I. Justo, 2.27 for J. Torres. AI winner pick: G. I. Justo, odds 1.62, confidence 5.1 out of 10. This tip lost. Predicted score: 6-0, 6-0. Best AI tip: G. I. Justo, odds 1.62, confidence 5.1 out of 10. This tip lost.
G. I. Justo
(5)
J. Torres
G. I. Justo vs S. Gueymard, Challenger - Liberec, Czech Republic, 11:50, Finished. Match winner odds: 1.8 for G. I. Justo, 1.97 for S. Gueymard. AI winner pick: G. I. Justo, odds 1.8, confidence 4.0 out of 10. This tip won. Predicted score: 6-3, 6-4. Best AI tip: G. I. Justo, odds 1.8, confidence 4.0 out of 10. This tip won.
G. I. Justo
S. Gueymard
13:00
Finished
1300
G. I. Justo
(5)
J. Torres
0
2
▾1.62
▴2.27
1
▾1.62
6060
1
▾1.62
5.1/10
11:50
Finished
1150
G. I. Justo
S. Gueymard
2
0
▴1.8
▾1.97
1
▴1.8
6364
1
▴1.8
4.0/10
D. Dedura-P. vs G. I. Justo, Challenger - Tampere, Finland, 10:00, Finished. Match winner odds: 1.52 for D. Dedura-P., 2.52 for G. I. Justo. AI winner pick: D. Dedura-P., odds 1.52, confidence 2.4 out of 10. This tip won. Predicted score: 6-4, 7-6. Best AI tip: D. Dedura-P., odds 1.52, confidence 2.4 out of 10. This tip won.
D. Dedura-P.
G. I. Justo
(8)
G. Olivieri vs G. I. Justo, Challenger - Tampere, Finland, 13:10, Finished. Match winner odds: 2.25 for G. Olivieri, 1.64 for G. I. Justo. AI winner pick: G. I. Justo, odds 1.64, confidence 3.7 out of 10. This tip won. Predicted score: 4-6, 3-6. Best AI tip: G. I. Justo, odds 1.64, confidence 3.7 out of 10. This tip won.
G. Olivieri
G. I. Justo
(8)
10:00
Finished
1000
D. Dedura-P.
G. I. Justo
(8) 2
0
▾1.52
▴2.52
1
▾1.52
6476
1
▾1.52
2.4/10
13:10
Finished
1310
G. Olivieri
G. I. Justo
(8) 0
2
▴2.25
▾1.64
2
▾1.64
4636
2
▾1.64
3.7/10
L. Neumayer vs G. I. Justo, Challenger - Trieste, Italy, 13:35, Finished. Match winner odds: 1.33 for L. Neumayer, 3.35 for G. I. Justo. AI winner pick: L. Neumayer, odds 1.33, confidence 5.5 out of 10. This tip won. Predicted score: 6-4, 6-3. Best AI tip: L. Neumayer, odds 1.33, confidence 5.5 out of 10. This tip won.
L. Neumayer
(3)
G. I. Justo
G. I. Justo vs G. Kravchenko, Challenger - Trieste, Italy, 09:00, Finished. Match winner odds: 1.51 for G. I. Justo, 2.44 for G. Kravchenko. AI winner pick: G. Kravchenko, odds 2.44, confidence 1.0 out of 10. This tip lost. Predicted score: 4-6, 6-3, 3-6. Best AI tip: O20.5, odds 1.66, confidence 2.3 out of 10. This tip lost.
G. I. Justo
G. Kravchenko
13:35
Finished
1335
L. Neumayer
(3)
G. I. Justo
2
1
▾1.33
▴3.35
1
▾1.33
6463
1
▾1.33
5.5/10
09:00
Finished
0900
G. I. Justo
G. Kravchenko
2
0
▴1.51
▾2.44
2
▾2.44
466336
O20.5
1.66
2.3/10
G. I. Justo vs K. Smith, Challenger - Brasov, Romania, 10:50, Finished. Match winner odds: 1.67 for G. I. Justo, 2.23 for K. Smith. AI winner pick: G. I. Justo, odds 1.67, confidence 1.0 out of 10. This tip lost. Predicted score: 4-6, 6-3, 6-3. Best AI tip: O19.5, odds 1.38, confidence 4.2 out of 10. This tip won.
G. I. Justo
K. Smith
G. I. Justo vs O. Wallin, Challenger - Brasov, Romania, 09:00, Finished. Match winner odds: 1.58 for G. I. Justo, 2.38 for O. Wallin. AI winner pick: G. I. Justo, odds 1.58, confidence 3.5 out of 10. This tip won. Predicted score: 2-6, 6-3, 6-4. Best AI tip: O19.5, odds 1.46, confidence 3.8 out of 10. This tip lost.
G. I. Justo
O. Wallin
(Q)
10:50
Finished
1050
G. I. Justo
K. Smith
0
2
▴1.67
▾2.23
1
▴1.67
466363
O19.5
▾1.38
4.2/10
09:00
Finished
0900
G. I. Justo
O. Wallin
(Q) 2
0
▴1.58
▾2.38
1
▴1.58
266364
O19.5
1.46
3.8/10
Record by surface
Hard
0-1
Clay
46-26
Overall
46-27
Our AI on this player
50 correct of 69
From the matches in our database
About Guido Ivan Justo
Guido Ivan Justo is a 28-year-old right-handed professional tennis player, currently ranked world No. 182. Over the last 52 weeks the serve has landed 65% of first deliveries, winning 64.4% of those points. Breaking is the real weapon here: 34.7% of break chances get taken. The best surface is comfortably clay: 46-26 there, against 0-1 on everything else.
Right now the run is going well: 4 wins from the last 5 completed matches. The longest match we have on record ran to 33 games, against F. Comesaña. More of the matches we cover came at Challenger Curitiba Brazil than anywhere else — 5 of them. Predictions cover match winner and score, alongside serve, return and break-point statistics. Most recently seen in our data at Challenger Costa do Sauipe Brazil.
Serve & Return
First Serve %
62.5%
1st Serve Won
65.1%
2nd Serve Won
49.8%
Aces / Match
1.6
Double Faults / Match
2.5
Break Pts Saved
64%
Break Pts Converted
40.9%
Return Pts Won
45.2%
Service Hold %
59.4%
Total Pts Won
52.6%
Records
Last 12 months
2
Titles
3
Finals
7
Semis or better
30
Events played
Tournament Results
Curitiba, Brazil
Challenger
Winner
Tigre, Argentina
Challenger
Winner
Bucaramanga, Colombia Men Singles
Challenger
Final
Asuncion 2, Paraguay
Challenger
Semi-Finals
Brasov, Romania
Challenger
Semi-Finals
Cordoba, Argentina
Challenger
Semi-Finals
San Miguel de Tucuman, Argentina
Challenger
Semi-Finals
Campinas, Brazil
Challenger
Quarter-Finals
Concepcion, Chile
Challenger
Quarter-Finals
Florianopolis, Brazil
Challenger
Quarter-Finals
Antofagasta, Chile
Challenger
Round of 16
Buenos Aires, Argentina
Challenger
Round of 16
Cordenons, Italy
Challenger
Round of 16
Liberec, Czech Republic
Challenger
Round of 16
Santa Cruz, Bolivia
Challenger
Round of 16
Cervia, Italy
Challenger
Round of 16
Itajai, Brazil Men Singles
Challenger
Round of 16
Santa Cruz 2, Bolivia
Challenger
Round of 16
Santos, Brazil
Challenger
Round of 16
Tampere, Finland
Challenger
Round of 16
Tigre 2, Argentina
Challenger
Round of 16
Trieste, Italy
Challenger
Round of 16
Rosario, Argentina
Challenger
Round of 32
Buenos Aires, Argentina
Challenger
Round of 32
Montevideo, Uruguay
Challenger
Round of 32
Asuncion, Paraguay
Challenger
Round of 32
Kosice, Slovakia Men Singles
Challenger
Round of 32
Santiago, Chile
Challenger
Round of 32
Sao Leopoldo, Brazil Men Singles
Challenger
Round of 32
US Open, Men
ATP
Qualifying
Deepest runs first, not by date
Season by season
2026so far
49–27
Won-lost
76
Matches
8–11
Tiebreaks
1.3
Aces / Match
1.6
Double Faults / Match
First Serve %
65.7%
1st Serve Won
64.4%
2nd Serve Won
52%
Break points won
48.3%
Break Pts Saved
57.6%
2025
16–15
Won-lost
31
Matches
12–4
Tiebreaks
1.6
Aces / Match
2.6
Double Faults / Match
First Serve %
64.5%
1st Serve Won
62.5%
2nd Serve Won
47.9%
Break points won
43.3%
Break Pts Saved
55.8%
2024
16–14
Won-lost
30
Matches
1–3
Tiebreaks
1.3
Aces / Match
2.5
Double Faults / Match
First Serve %
63.9%
1st Serve Won
62.5%
2nd Serve Won
47%
Break points won
43.5%
Break Pts Saved
56.5%
Season totals from the tour feed, singles only. The won-lost line is the tour's own count and can differ from the record under Predictions, which counts the matches we cover. A dash means the season holds nothing to measure that figure from.
Frequently asked questions
How accurate are the AI predictions for Guido Ivan Justo?
+
Our model has graded 69 matches involving Guido Ivan Justo and got 50 right — a hit rate of 72.5%. The 20 most recent are listed below, each with the pick we made and how it finished.
Who has Guido Ivan Justo played most often?
+
Of the matches we cover, Guido Ivan Justo has met Luciano Emanuel Ambrogi most often — 4 times, with a 3-1 record.