Gabriela Andrea Knutson vs Sofia CostoulasWarsaw Round of 32

Warsaw · CHALLENGER · Round of 32
#186WTA
1518ELO
1467Hard ELO
29 yrs · 175 cm · Right-handed
Last 10 · pre-match
LWWWLWLWLW
2 — 0
Sets
Tuesday, 4 August 2026 ·
hard
COURT 3 · 3rd on
#158WTA
1565ELO
1569Hard ELO
21 yrs
Last 10 · pre-match
LWWLWLWWLL
Andrea Knutson G.
6-2 6-4
Costoulas S.
Andrea Knutson G.
662
Costoulas S.
240

Gabriela Andrea Knutson defeated Sofia Costoulas in the Round of 32 of the Warsaw hard-court tournament, winning 6-2, 6-4. Knutson hit one ace and five double faults, while converting 62% of her break points and winning 73% of her first-serve points. Knutson won five service breaks to Costoulas' two.

Key context

Head to head

01
DateTournamentRoundSurfaceWinnerScore
2025-04-02W50 Nantes 1R16hardSofia Costoulas4-6 6-1 6-4

Statistics

This season
1st serve in·Even
60%
61%
1st serve points won·Even
66%
68%
2nd serve points won·Even
45%
44%
Service points won·Even
57%
58%
Return points won·Even
41%
45%
Break points saved·Even
53%
53%
Aces / match·Slight edge
3.9
3.3
Double faults / match·Dominant
4.5
3.0

Averages over each player's completed matches in the selected window (39 vs 44). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
53
83
Break points saved·Even
80
83
Break points won·Clear edge
69
82
Deciding sets·Clear edge
81
96
Tiebreaks·
12

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

Win Probability

Pre-match · updated 11:50 UTC
Andrea Knutson G.29%
Costoulas S.71%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Clear favourite · Costoulas S. clearly ahead, but no certainty

Calibrated model (out-of-sample validated). Probability is a statistical estimate, not a certainty. How it works.

Umpiry Score

Pre-match
5.5
Slight disadvantageUmpiry Score
6.6
Marginal edgeUmpiry Score
Form & Matchup
3.7Hard Elo 1467
Surface ELO
6.3+102 Hard Elo edge
4.4Overall Elo 1518
ELO gap
5.6Overall Elo 1565
2.2Trails 0–2 on hard
H2H
7.8Leads 2–0 on hard
4.75 of last 10 on hard
Surface form
6.37 of last 10 on hard
0.0
Win streak
0.0
Fatigue & Travel
7.01 three-setter in 14 days
3-set count
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.

Freshness

Recent load
Freshness·Slight edge
92
100

Andrea Knutson G.: 11 days rest · 4 matches (14d) · Costoulas S.: 15 days rest. Higher means fresher. About

Conditions

Court speed
Slowlow bounce, long rallies
SlowFast
Weather
32°CClear
Wind 9 km/hHumidity 41%

Draw