Sofia Costoulas vs Aliona Bolsova — W100 Biarritz Round of 16

W100 Biarritz · CHALLENGER · Round of 16
BEL
Sofia Costoulas
#144WTA
1593ELO
1521Clay ELO
21 yrs
Last 10
LWWLWWLWLW
0 — 0
Sets
Monday, 9 June 2025
clay
ESP
Aliona Bolsova
#300WTA
1510ELO
1487Clay ELO
28 yrs · 172 cm · Right-handed
Last 10
LWLLWLWLWL

Umpiry Score

Pre-match
Costoulas S.
6.4
Marginal edgeUmpiry Score
Bolsova A.
6.4
Marginal edgeUmpiry Score
Form & Matchup
5.8+34 Clay Elo edge
Surface ELO
4.2Clay Elo 1487
6.4Overall Elo 1593
ELO gap
3.6Overall Elo 1510
0.0
H2H
10.0
6.8
Surface form
5.9
Win streak
0.0
Fatigue & Travel
0.0
3-set count
Prev. match
7.0
Context
5.0
Defending pts
5.0

The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.

Costoulas S.
7762
Bolsova A.
624–

Head to head

0–1
DateTournamentRoundSurfaceWinnerScore
2025-05-05W35 Platja d'AroR16clayAliona Bolsova6-4 6-4

Statistics

Recent form
Costoulas S.Bolsova A.
60%1st serve in+12%72%
68%1st serve points won+10%58%
43%2nd serve points won+1%44%
58%Service points won+4%54%
44%Return points won+1%43%
54%Break points saved+4%50%
3.1Aces / match+1.71.4
2.8Double faults / match+0.33.1

Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.

Draw

Final
Sherif M.
Rakotomanga Rajaonah T.
7-56-4
Semi-finals
Sherif M.
Costoulas S.
6-16-3
Rakotomanga Rajaonah T.
Belgraver J.
5-76-26-1
Quarter-finals
Rakotomanga Rajaonah T.
Ambrosio S.
7-56-0
Belgraver J.
Ferro F.
6-26-1
Sherif M.
Burillo Escorihuela I.
7-626-3
Costoulas S.
Inisan E.
6-06-2
R16
Burillo Escorihuela I.
Bara I.
4-66-26-4
Ambrosio S.
Rame A.
6-47-5
Inisan E.
Smith T.
6-16-3
Rakotomanga Rajaonah T.
Hesse A.
6-26-2
Ferro F.
Tararudee L.
5-77-56-1
Costoulas S.
Bolsova A.
7-626-4
Belgraver J.
Mikulskyte J.
6-26-3
Sherif M.
Uebelhoer C.
6-46-4
R32
Belgraver J.
Kabbaj Y.
6-06-2
Smith T.
Dartron E.
6-36-2
Inisan E.
Davis L.
6-24-1
Rame A.
Hontama M.
6-36-1
Sherif M.
Fiquet T.
6-16-4
Ferro F.
Portillo Ramirez M.
6-36-2
Hesse A.
Rus A.
6-46-2
Ambrosio S.
Gasanova A.
6-14-67-5
Rakotomanga Rajaonah T.
Buyukakcay C.
6-46-2
Costoulas S.
Schunk N.
6-16-3
Mikulskyte J.
Oz I.
7-630-0
Tararudee L.
Sonobe W.
1-66-16-2
Burillo Escorihuela I.
Hietaranta L.
5-76-37-62
Bolsova A.
Iliev S.
6-26-0
Uebelhoer C.
Mpetshi Perricard D.
6-07-63
Bara I.
Rouvroy M.
4-67-56-2