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S. Heredia vs J. S. Osorio prediction

The prediction, computed before the match

Correct prediction
S. HerediaJ. S. Osorio
53.4 %46.6 %
Model favourite
S. Heredia
Probability
53 %
Predicted score
2-0
Actual score
2-1 · S. Heredia

Probability and score were published in the app before the match and frozen since. Model v0.6.

Men's ChallengerCuritibaQualifyingclay15:05
S. Heredia
S. Heredia
vs
JS
J. S. Osorio
1611
Elo
1611
1666
Elo on clay
1622
3 / 10
Form (last 10)
7 / 10
2
Recent matches
8
–
Head-to-head
Edge
–
Odds
–

Form and record before the match

Last 10 matches, oldest to most recent

S. Heredia
  1. W
  2. W
  3. L
  4. L
  5. L
  6. W
  7. L
  8. L
  9. L
  10. W
J. S. Osorio
  1. L
  2. W
  3. L
  4. L
  5. W
  6. W
  7. W
  8. L
  9. L
  10. W
4 – 6
Wins – losses
5 – 5
11 – 13
Sets won – lost
12 – 14
1 win
Current streak
1 win
12-13 (48%)
2026 record
5-4 (56%)
11-15 (42%)
Record on clay
10-16 (38%)

ATP, WTA and Challenger singles matches played since 2020 by S. Heredia and J. S. Osorio, before this match.

What the numbers said before the match

Both players come in with almost the same Elo (1611 against 1611): nothing separates them in the model's rating. On clay, the gap is 44 points in favour of S. Heredia. S. Heredia won 3 of the last ten matches, J. S. Osorio won 7. S. Heredia has 2 wins in the last five matches. J. S. Osorio has 3 wins in the last five matches. In their recent head-to-head meetings, the edge goes to J. S. Osorio. No bookmaker odds are available for this match.

The model gave S. Heredia the win at 53 %, with a likely score of 2-0. S. Heredia won 2-1: prediction correct.

Recent matches

S. Heredia's last five matches

J. S. Osorio's last five matches

Head-to-head since 2020

No direct meeting since 2020 on the ATP, WTA and Challenger tours.

Road through the tournament

To reach this round, S. Heredia beat F. L. Storck (3-6 6-3 6-1). To reach this round, J. S. Osorio beat J. Wendler Filho (6-1 6-2). In 2025, the tournament was won by D. Vallejo, who beat P. Boscardin Dias in the final (6-3 7-5).

Key numbers

In deciding sets, S. Heredia wins 23 % of the time (13 matches), J. S. Osorio 42 % (12 matches). After losing the first set, S. Heredia turned 12 % of matches around (17 occasions), J. S. Osorio 18 % (17 occasions). After winning the first set, S. Heredia went on to win 69 % of matches, J. S. Osorio 67 %.

Completed ATP, WTA and Challenger singles matches since 2020, before this match, retirements and walkovers excluded.

Frequently asked questions about S. Heredia – J. S. Osorio

Who is the favourite between S. Heredia and J. S. Osorio?
The match is over: S. Heredia won 2-1. No bookmaker odds are available for this match. Pronocast's model had S. Heredia winning at 53 %.
When is the S. Heredia – J. S. Osorio match?
On Monday, 28 September 2026 at 15:05, at the Curitiba tournament (Qualifying, clay).
What is the head-to-head between S. Heredia and J. S. Osorio?
No meeting between S. Heredia and J. S. Osorio appears since 2020 on the ATP, WTA and Challenger tours.
Where can I see the prediction for S. Heredia – J. S. Osorio?
The prediction is published higher up on this page, with the result and the verdict.

How the model computes its predictions

Same tournament: Curitiba

Tournament page

Other matches on 28 September 2026

All matches on 28 September 2026