Sofia Costoulas vs Elvina Kalieva — W25 Feld am See Semi-final

W25 Feld am See · ITF · Semi-final
BEL
Sofia Costoulas
#155WTA
1565ELO
1500Clay ELO
21 yrs
Last 10 · pre-match
LLWLWLWWLL
2 — 0
Sets
Friday, 19 May 2023 ·
clay
USA
Elvina Kalieva
#115WTA
1569ELO
1496Clay ELO
23 yrs · Right-handed
Last 10 · pre-match
LWWWLLLWWW
Costoulas S.
6-2 6-3
Kalieva E.
Costoulas S.
662
Kalieva E.
230

Sofia Costoulas defeated Elvina Kalieva 6-2 6-3 in the W25 Feld am See semi-final on clay. The upset overturned the form book — Elvina Kalieva came in ranked #115, leading the head-to-head 2–0. Sofia Costoulas claimed a first win over Elvina Kalieva in three meetings, narrowing the head-to-head to 2–1.

Key context

Head to head

0–2
DateTournamentRoundSurfaceWinnerScore
2026-08-27US OpenQ64hardElvina Kalieva3-6 6-3 6-4
2024-03-08W35 Santo Domingo 1QFhardElvina Kalieva6-7(6) 6-4 6-0

Statistics

This season
Costoulas S.Kalieva E.
1st serve in·Slight edge
62%
56%
1st serve points won·Even
67%
63%
2nd serve points won·Even
47%
45%
Service points won·Even
59%
55%
Return points won·Even
45%
45%
Break points saved·Slight edge
57%
51%
Aces / match·Even
2.8
2.9
Double faults / match·Dominant
1.9
4.0

Averages over each player's completed matches in the selected window (199 vs 200). ATP, WTA & Challenger.

Clutch

Under pressure
Costoulas S.Kalieva E.
Clutch Rating·Dominant
83
18
Break points saved·Dominant
83
28
Break points won·Slight edge
82
87
Deciding sets·Dominant
96
36
Tiebreaks·
—
15

Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About

Freshness

Recent load
Costoulas S.Kalieva E.
Freshness·Slight edge
97
90

Costoulas S.: 14 days rest · 1 match (14d) · Kalieva E.: 11 days rest · 3 matches (14d). Higher means fresher. About

Draw