S. Costoulas: predictions, results and statistics

Women's Challenger

In short

S. Costoulas has played 54 matches on the ATP, WTA and Challenger tours since 2024, for 29 wins and 25 losses (54 % win rate). In 2026, their record is 19 wins and 16 losses. Over the last ten matches, 4 wins. Pronocast has covered 5 of their matches, with 2 correct predictions out of 5 verified.

Match patterns in numbers

S. Costoulas has played 19 matches that went to a deciding set: 11 wins, 8 losses (58 %). In tie-breaks: 4 won out of 10 (40 %). After losing the first set, S. Costoulas turned 5 of 24 matches around (21 %). After winning the first set: 24 wins out of 30 (80 %).

Based on 54 completed ATP, WTA and Challenger singles matches since 2024, retirements and walkovers excluded.

Model data at the last covered match (5 October 2026)

Elo: 1895
hard court Elo: 1811
Form (last 10): 4 / 10
Recent matches: 3

Matches covered by Pronocast (5)

2 correct predictions out of 5 verified

S. Costoulas vs Winner : D. Astakhova
Women's Challenger· Suzhou· Round of 32hard court
1-0S. Costoulas 56 %
S. Costoulas vs D. Astakhova prediction
Winner : S. Lansere vs S. Costoulas
Women's Challenger· Jingshan· Round of 16hard court
2-0S. Costoulas 75 %
S. Lansere vs S. Costoulas prediction
K. Mladenovic vs Winner : S. Costoulas
Women's Challenger· Jingshan· Round of 32hard court
2-0S. Costoulas 78 %
K. Mladenovic vs S. Costoulas prediction
Cascino / Feng vs Winner : Costoulas / Gibson
WTA doubles· Singapore· Round of 16hard court
2-0Cascino / Feng 56 %
Cascino / Feng vs Costoulas / Gibson prediction
Winner : T. Prozorova vs S. Costoulas
WTA· Singapore· Round of 32hard court
2-1T. Prozorova 65 %
T. Prozorova vs S. Costoulas prediction

Record since 2024

29 – 25

29 wins · 25 losses · No title

By surface

hard court17 – 14
clay10 – 7
grass0 – 2

By season

202619 – 16
20258 – 7
20242 – 2

Last ten matches

DS. LansereJingshan 2026 · Round of 16 · 1 October 20263-6 4-6
VK. MladenovicJingshan 2026 · Round of 32 · 29 September 20266-2 7-5
DT. ProzorovaSingapore 2026 · Round of 32 · 22 September 20267-5 6-7 2-6
DE. KalievaUS Open 2026 · Qualifying · 27 August 20266-3 3-6 4-6
VJ. RuggeriUS Open 2026 · Qualifying · 26 August 20267-5 6-4
DG. KnutsonWarsaw 2026 · Round of 32 · 4 August 20262-6 4-6
DM. InglisVancouver 2026 · Round of 16 · 30 July 20263-6 3-6
VL. CabreraVancouver 2026 · Round of 32 · 29 July 20266-2 6-2
DA. AksuLivesport Prague Open 2026 · Round of 32 · 20 July 20266-2 3-6 4-6
VA. AksuLivesport Prague Open 2026 · Qualifying · 19 July 20267-5 6-2

Most frequent opponents

Frequently asked questions about S. Costoulas

When is S. Costoulas's next match?: No match for S. Costoulas is scheduled yet in the tournaments Pronocast covers.
What is S. Costoulas's record in 2026?: 19 wins and 16 losses in 2026 on the ATP, WTA and Challenger tours.
What is S. Costoulas's record against A. Aksu?: 4 meetings since 2024: 2 wins and 2 losses for S. Costoulas.
Where can I find predictions for S. Costoulas'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. Costoulas's matches already checked: 2 correct predictions out of 5.