Polona Hercog vs Elvina Kalieva — Quito 125 Quarter-final

Quito 125 · CHALLENGER · Quarter-final

SLO

Polona Hercog

#224WTA

1590ELO

1574Clay ELO

35 yrs · 182 cm · Right-handed

Last 10 · pre-match

LLLWWLWWLW

0 — 0

Sets

Monday, 1 December 2025

clay

USA

Elvina Kalieva

#136WTA

1569ELO

1496Clay ELO

22 yrs · Right-handed

Last 10 · pre-match

LWLLLWWLLW

Hercog P.

6-3 6-1

Kalieva E.

Hercog P.

662

Kalieva E.

31–

Polona Hercog defeated Elvina Kalieva 6-3 6-1 in the Quito 125 quarter-final on clay. The upset overturned the form book — Elvina Kalieva came in ranked #136.

Key context

Match story: Polona Hercog dropped just 4 games past Elvina Kalieva.

Head to head

No previous meetings on record.

Serve vs return

This season

Hercog P.serving52% hold

wins 51% of points on serve vs Kalieva E.

Kalieva E.serving45% hold

wins 48% of points on serve vs Hercog P.

Baseline battle — serve is shaky, expect plenty of breaks

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Statistics

This season

Hercog P.Kalieva E.

1st serve in·Slight edge

64%

57%

1st serve points won·Even

65%

2nd serve points won·Even

48%

46%

Service points won·Even

59%

56%

Return points won·Even

45%

Break points saved·Even

54%

52%

Aces / match·Slight edge

2.3

3.3

Double faults / match·Dominant

2.4

4.1

Averages over each player's completed matches in the selected window (48 vs 88). ATP, WTA & Challenger.

Clutch

Under pressure

Hercog P.Kalieva E.

Clutch Rating·Dominant

Break points saved·Dominant

Break points won·Clear edge

Deciding sets·Slight edge

Tiebreaks·Dominant

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

Umpiry Score

Pre-match

Hercog P.

5.7

Slight disadvantageUmpiry Score

Kalieva E.

4.6

Heavy underdogUmpiry Score

Extended break: 35 days (−0.7)

Form & Matchup

5.7+78 Clay Elo edge

Surface ELO

4.3Clay Elo 1496

4.9Overall Elo 1590

ELO gap

5.1Overall Elo 1569

5.0No prior meetings

H2H

5.0

3.0

Surface form

4.4

0.0Lost last 2

Win streak

0.0

Fatigue & Travel

7.0

3-set count

Surface transition

6.0

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.