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D. Ostapenkov vs Q. Vandecasteele prediction

The prediction, computed before the match

Missed prediction
D. OstapenkovQ. Vandecasteele
50.0 %50.0 %
Model favourite
Q. Vandecasteele
Probability
50 %
Predicted score
0-2
Actual score
2-1 · D. Ostapenkov

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

Men's ChallengerSan Diego 2 (Usa) - QualificationQualifying23:05
D. Ostapenkov
D. Ostapenkov
vs
Q. Vandecasteele
Q. Vandecasteele
1753
Elo
1772
5 / 10
Form (last 10)
6 / 10
2
Recent matches
2
Even
Head-to-head
Even
–
Odds
–

Form and record before the match

Last 10 matches, oldest to most recent

D. Ostapenkov
  1. W
  2. W
  3. L
  4. L
  5. W
  6. L
  7. W
  8. L
  9. L
  10. W
Q. Vandecasteele
  1. L
  2. W
  3. W
  4. W
  5. L
  6. W
  7. W
  8. L
  9. W
  10. L
5 – 5
Wins – losses
6 – 4
12 – 13
Sets won – lost
14 – 9
1 win
Current streak
1 loss
12-8 (60%)
2026 record
22-19 (54%)

ATP, WTA and Challenger singles matches played since 2020 by D. Ostapenkov and Q. Vandecasteele, before this match.

What the numbers said before the match

Q. Vandecasteele comes in with an Elo of 1772, against 1753 for D. Ostapenkov: a 19-point edge. D. Ostapenkov won 5 of the last ten matches, Q. Vandecasteele won 6. D. Ostapenkov has 2 wins in the last five matches. Q. Vandecasteele has 3 wins in the last five matches. Their head-to-head record does not separate the two players. No bookmaker odds are available for this match.

The model gave Q. Vandecasteele the win at 50 %, with a likely score of 2-0. D. Ostapenkov won 2-1: prediction missed.

Recent matches

D. Ostapenkov's last five matches

Q. Vandecasteele'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

This is D. Ostapenkov's first match of the tournament. This is Q. Vandecasteele's first match of the tournament.

Key numbers

In tie-breaks, D. Ostapenkov wins 67 % (8 of 12), Q. Vandecasteele 53 % (17 of 32). After winning the first set, D. Ostapenkov went on to win 79 % of matches, Q. Vandecasteele 82 %.

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

Frequently asked questions about D. Ostapenkov – Q. Vandecasteele

Who is the favourite between D. Ostapenkov and Q. Vandecasteele?
The match is over: D. Ostapenkov won 2-1. No bookmaker odds are available for this match. Pronocast's model had Q. Vandecasteele winning at 50 %.
When is the D. Ostapenkov – Q. Vandecasteele match?
On Sunday, 20 September 2026 at 23:05, at the San Diego 2 (Usa) - Qualification tournament (Qualifying, Unknown).
What is the head-to-head between D. Ostapenkov and Q. Vandecasteele?
No meeting between D. Ostapenkov and Q. Vandecasteele appears since 2020 on the ATP, WTA and Challenger tours.
Where can I see the prediction for D. Ostapenkov – Q. Vandecasteele?
The prediction is published higher up on this page, with the result and the verdict.

How the model computes its predictions

Same tournament: San Diego 2 (Usa) - Qualification

Tournament page

Other matches on 20 September 2026

All matches on 20 September 2026