Nikola Bartunkova vs Mayar Sherif — US Open Round of 128

US Open · WTA · Round of 128
Nikola Bartunkova
CZE
Nikola Bartunkova
#38WTA
1788ELO
1719Hard ELO
$767kYTD
$973kCAREER
20 yrs · Right-handed
Last 10
LWWWWLWLWW
—
Sets
Sunday, 30 August 2026 ·
hard
Mayar Sherif
EGY
Mayar Sherif
#51WTA
1685ELO
1505Hard ELO
30 yrs · 180 cm · Right-handed
Last 10
LLWWWWWWWW
Bartunkova N.
vs
Sherif M.

Nikola Bartunkova faces Mayar Sherif in the US Open round of 128 on hard. Nikola Bartunkova holds the paper edge — ranked #38, a roughly 210-point hard Elo advantage.

Win Probability

Pre-match · updated 12:50 UTC
Bartunkova N.81%
Sherif M.19%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Strong favourite · Bartunkova N. heavily favoured

Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.

Key context

Common opponents

Last 12 months
2 common opponents · Bartunkova N. 2–0 · Sherif M. 2–1 · small sample
Bartunkova N. better · different surfaces (Hard × Clay)▾
Includes tour-level, 125s, qualifying and team events (⚑). Walkovers excluded. Describes past results in different contexts — not a prediction.

Umpiry Score

Pre-match
Bartunkova N.
5.9
Even matchUmpiry Score
  • Back-to-back day (−0.5)
Sherif M.
5.4
Clear underdogUmpiry Score
Form & Matchup
7.7+214 Hard Elo edge
Surface ELO
2.3Hard Elo 1505
6.3Overall Elo 1788
ELO gap
3.7Overall Elo 1685
5.0No prior meetings
H2H
5.0No prior meetings
6.87 of last 10 on hard
Surface form
1.72 of last 10 on hard
0.0
Win streak
0.0Lost last 2
Fatigue & Travel
0.03 three-setters in 14 days
3-set count
Context
5.0Didn't play here last year
Defending pts
6.0Reached the R128 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.

45 vs 47 matches

Statistics

This season
Bartunkova N.Sherif M.
1st serve in·Clear edge
55%
78%
1st serve points won·Slight edge
69%
58%
2nd serve points won·Even
47%
49%
Service points won·Even
59%
56%
Return points won·Even
43%
47%
Break points saved·Even
57%
53%
Aces / match·Dominant
4.3
0.8
Double faults / match·Dominant
4.7
1.9

Averages over each player's completed matches in the selected window (45 vs 47). ATP, WTA & Challenger.

Serve vs return

This season
Bartunkova N.serving69% hold

wins 58% of points on serve vs Sherif M.

Sherif M.serving71% hold

wins 59% of points on serve vs Bartunkova N.

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

Clutch

Under pressure
Bartunkova N.Sherif M.
Clutch Rating·Dominant
72
19
Break points saved·Dominant
76
22
Break points won·Dominant
90
48
Deciding sets·Dominant
75
10
Tiebreaks·
—
85

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

Freshness

Recent load
Bartunkova N.Sherif M.
Freshness·Dominant
43
94

Bartunkova N.: played today · 4 matches, 111 games (7d) · Sherif M.: 5 days rest · 1 match, 19 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-fastrewards aggression
SlowFast
Weather forecast
26°COvercast
Wind 12 km/hHumidity 79%

Head to head

No previous meetings on record.

Draw