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S. Lamens vs S. Sierra prediction

The prediction, computed before the match

Missed prediction
S. LamensS. Sierra
46.6 %53.4 %
Model favourite
S. Sierra
Probability
53 %
Predicted score
0-2
Actual score
2-0 · S. Lamens

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

WTASao PauloRound of 16hard court18:15
S. Lamens
S. Lamens
vs
S. Sierra
S. Sierra
1966
Elo
2092
1839
Elo on hard court
1812
5 / 10
Form (last 10)
4 / 10
2
Recent matches
1
Even
Head-to-head
Even
2.10
Odds
1.75

Form and record before the match

Last 10 matches, oldest to most recent

S. Lamens
  1. L
  2. W
  3. W
  4. L
  5. W
  6. L
  7. W
  8. L
  9. L
  10. W
S. Sierra
  1. W
  2. W
  3. L
  4. W
  5. L
  6. L
  7. L
  8. L
  9. L
  10. W
5 – 5
Wins – losses
4 – 6
12 – 12
Sets won – lost
11 – 15
1 win
Current streak
1 win
17-22 (44%)
2026 record
21-22 (49%)
40-48 (45%)
Record on hard court
22-28 (44%)

ATP, WTA and Challenger singles matches played since 2020 by S. Lamens and S. Sierra, before this match.

What the numbers said before the match

S. Sierra comes in with an Elo of 2092, against 1966 for S. Lamens: a 126-point edge. On hard court, the gap is 27 points in favour of S. Lamens. S. Lamens won 5 of the last ten matches, S. Sierra won 4. S. Lamens has 2 wins in the last five matches. S. Sierra has one win in the last five matches. Their head-to-head record does not separate the two players. Bookmakers make S. Sierra the favourite.

The model gave S. Sierra the win at 53 %, with a likely score of 2-0. S. Lamens won 2-0: prediction missed.

Recent matches

S. Lamens's last five matches

S. Sierra'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. Lamens beat C. Alves (3-6 7-6 6-2). To reach this round, S. Sierra beat C. Brace (6-4 3-6 6-1). In 2025, the tournament was won by T. Rakotomanga Rajaonah, who beat J. Tjen in the final (6-3 6-4).

Key numbers

In tie-breaks, S. Lamens wins 49 % (19 of 39), S. Sierra 57 % (17 of 30). In deciding sets, S. Lamens wins 48 % of the time (58 matches), S. Sierra 61 % (38 matches). After losing the first set, S. Lamens turned 16 % of matches around (89 occasions), S. Sierra 23 % (66 occasions). After winning the first set, S. Lamens went on to win 82 % of matches, S. Sierra 92 %.

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

Frequently asked questions about S. Lamens – S. Sierra

Who is the favourite between S. Lamens and S. Sierra?
The match is over: S. Lamens won 2-0. Bookmakers make S. Sierra the favourite, priced at 1.75 against 2.10 for S. Lamens. Pronocast's model had S. Sierra winning at 53 %.
When is the S. Lamens – S. Sierra match?
On Thursday, 17 September 2026 at 18:15, at the Sao Paulo tournament (Round of 16, hard court).
What is the head-to-head between S. Lamens and S. Sierra?
No meeting between S. Lamens and S. Sierra appears since 2020 on the ATP, WTA and Challenger tours.
Where can I see the prediction for S. Lamens – S. Sierra?
The prediction is published higher up on this page, with the result and the verdict.

How the model computes its predictions

Same tournament: Sao Paulo

Tournament page

Other matches on 17 September 2026

All matches on 17 September 2026