Sofia Costoulas vs Nao Hibino — Livesport Prague Open Qualifying Semi-final

Livesport Prague Open · WTA · Qualifying Semi-final
BEL3
Sofia Costoulas
#157WTA
1565ELO
1569Hard ELO
21 yrs
Last 10
LLLLWWLWLW
·
Sets
Interrupted
Saturday, 18 July 2026 ·
hard
Nao Hibino
JPN
Nao Hibino
#235WTA
1560ELO
1523Hard ELO
31 yrs · 163 cm · Right-handed
Last 10
LWLWLWWLWL
Costoulas S.
6-7 7-5 3-1
Hibino N.

Key context

  • Under pressure: In the tight moments, Sofia Costoulas has rated higher under pressure (Clutch Rating 83 vs 14).
  • Freshness: Sofia Costoulas comes in with 4 days of rest and 15 games in 14d, vs Nao Hibino's 4 and 38.

Clutch

Under pressure
Costoulas S.Hibino N.
Clutch Rating·Dominant
83
14
Break points saved·Dominant
83
2
Break points won·Even
82
82
Deciding sets·Dominant
96
5
Tiebreaks·
—
44

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

Umpiry Score

Pre-match
Costoulas S.
6.3
Marginal edgeUmpiry Score
Hibino N.
5.8
Slight disadvantageUmpiry Score
Form & Matchup
5.6+46 Hard Elo edge
Surface ELO
4.4Hard Elo 1523
5.1Overall Elo 1565
ELO gap
4.9Overall Elo 1560
5.0No prior meetings
H2H
5.0No prior meetings
6.97 of last 10 on hard
Surface form
4.55 of last 10 on hard
0.0Lost last 3
Win streak
0.0
Context
5.0Didn't play here last year
Defending pts
5.0Didn't play here last year

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.

Statistics

This season
Costoulas S.Hibino N.
1st serve in·Slight edge
60%
69%
1st serve points won·Slight edge
69%
63%
2nd serve points won·Even
44%
46%
Service points won·Even
59%
58%
Return points won·Even
45%
45%
Break points saved·Even
54%
56%
Aces / match·Slight edge
3.3
2.4
Double faults / match·Slight edge
2.8
2.3

Averages over each player's completed matches in the selected window (35 vs 27). ATP, WTA & Challenger.

Freshness

Recent load
Costoulas S.Hibino N.
Freshness·Slight edge
94
87

Costoulas S.: 4 days rest · 1 match, 15 games (7d) · Hibino N.: 4 days rest · 2 matches, 38 games (7d). Higher means fresher. About

Sofia Costoulas faces Nao Hibino in the Livesport Prague Open qualifying semi-final on hard. Sofia Costoulas holds the paper edge — ranked #157, a roughly 50-point hard Elo advantage.

Head to head

No previous meetings on record.

Draw