S. Sierra: predictions, results and statistics

Women's Challenger

In short

S. Sierra has played 135 matches on the ATP, WTA and Challenger tours since 2021, for 75 wins and 60 losses (56 % win rate). Their best surface is clay, with 38 wins and 21 losses. In 2026, their record is 21 wins and 24 losses. Over the last ten matches, 2 wins. Pronocast has covered 3 of their matches, with 1 correct predictions out of 3 verified.

Match patterns in numbers

S. Sierra has played 38 matches that went to a deciding set: 23 wins, 15 losses (61 %). In tie-breaks: 17 won out of 30 (57 %). After losing the first set, S. Sierra turned 15 of 68 matches around (22 %). After winning the first set: 60 wins out of 65 (92 %).

Based on 133 completed ATP, WTA and Challenger singles matches since 2021, retirements and walkovers excluded.

Model data at the last covered match (23 September 2026)

Elo: 2069
Form (last 10): 3 / 10
Recent matches: 2

Matches covered by Pronocast (3)

1 correct prediction out of 3 verified

S. Sierra vs Winner : D. Dilek
Women's Challenger· Ankara (Turkey) - Qualification· Round of 32
2-0S. Sierra 83 %
S. Sierra vs D. Dilek prediction
Winner : S. Lamens vs S. Sierra
WTA· Sao Paulo· Round of 16hard court
2-0S. Sierra 53 %
S. Lamens vs S. Sierra prediction
C. Brace vs Winner : S. Sierra
WTA· Sao Paulo· Round of 32hard court
2-1S. Sierra 64 %
C. Brace vs S. Sierra prediction

Record since 2021

75 – 60

75 wins · 60 losses · 2 titles

By surface

hard court22 – 29
clay38 – 21
grass9 – 6

By season

202621 – 24
202534 – 182 titles
202410 – 9
20235 – 4
20224 – 4
20211 – 1

2 titles

Last ten matches

DD. DilekAnkara (Turkey) - Qualification 2026 · Round of 32 · 23 September 20263-6 3-6
DS. LamensSao Paulo 2026 · Round of 16 · 17 September 20263-6 2-6
VC. BraceSao Paulo 2026 · Round of 32 · 16 September 20266-4 3-6 6-1
DE. SvitolinaUS Open 2026 · Round of 128 · 31 August 20261-6 2-6
DA. ItoCincinnati 2026 · Qualifying · 12 August 20261-6 1-6
DS. StephensToronto 2026 · Round of 128 · 4 August 20263-6 4-6
DT. ProzorovaMemphis (Usa) - Qualification 2026 · Round of 32 · 28 July 20261-6 7-5 2-6
DC. GauffWimbledon 2026 · Round of 64 · 1 July 20263-6 6-3 6-7
VA. BondarWimbledon 2026 · Round of 128 · 29 June 20266-3 5-7 7-5
DQ. ZhengBad Homburg 2026 · Round of 32 · 22 June 20265-7 6-4 4-6

Most frequent opponents

Frequently asked questions about S. Sierra

When is S. Sierra's next match?: No match for S. Sierra is scheduled yet in the tournaments Pronocast covers.
What is S. Sierra's record in 2026?: 21 wins and 24 losses in 2026 on the ATP, WTA and Challenger tours.
What is S. Sierra's best surface?: Clay, with 64 % of matches won (38 wins, 21 losses) since 2021. On the other surfaces: hard court 43 % (22 – 29).
What is S. Sierra's record against L. Pigossi?: 4 meetings since 2021: 2 wins and 2 losses for S. Sierra.
Where can I find predictions for S. Sierra's matches?: Before every match, Pronocast computes each player's probability of winning and the most likely score. The prediction is for members in the app, then published on this page with the result once the match is over. On S. Sierra's matches already checked: 1 correct predictions out of 3.