Yeon Woo Ku vs Astra Sharma — US Open Qualifying Round of 128

US Open · WTA · Qualifying Round of 128
KOR
Yeon Woo Ku
#179WTA
1519ELO
1500Hard ELO
23 yrs
Last 10 · pre-match
LLWLLWWWWL
2 — 0
Sets
Tuesday, 25 August 2026 ·
hard
Court 4 · 2nd on
AUS
Astra Sharma
#894WTA
1512ELO
1466Hard ELO
30 yrs · 178 cm · Right-handed
Last 10 · pre-match
LLLLLLLLLL
Woo Ku Y.
6-4 6-3
Sharma A.
Woo Ku Y.
662
Sharma A.
430

Yeon Woo Ku defeated Astra Sharma in the first round of US Open qualifying, 6-4, 6-3. Ku hit 3 aces and 5 double faults, while converting 71% of her break points and winning 60% of her first-serve points. Sharma had 1 ace, 0 double faults, 56% first-serve win percentage, and converted 27% of her break points.

Key context

  • Match story: Yeon Woo Ku closed it out in two sets, 6–4 6–3.

Head to head

No previous meetings on record.

Statistics

This season
Woo Ku Y.Sharma A.
1st serve in·Slight edge
66%
58%
1st serve points won·Slight edge
59%
64%
2nd serve points won·Even
46%
46%
Service points won·Even
54%
56%
Return points won·Slight edge
47%
36%
Break points saved·Even
52%
50%
Aces / match·Clear edge
1.6
4.0
Double faults / match·Dominant
3.1
5.8

Averages over each player's completed matches in the selected window (25 vs 4). ATP, WTA & Challenger.

Clutch

Under pressure
Woo Ku Y.Sharma A.
Clutch Rating·Dominant
50
0
Break points saved·Dominant
51
10
Break points won·Dominant
86
29
Deciding sets·Dominant
63
23
Tiebreaks·
—
7

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

Win Probability

Pre-match · updated 22:50 UTC
Woo Ku Y.74%
Sharma A.26%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Clear favourite · Woo Ku Y. clearly ahead, but no certainty

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

Umpiry Score

Pre-match
Woo Ku Y.
6.1
Even matchUmpiry Score
Sharma A.
4.5
Heavy underdogUmpiry Score
Form & Matchup
5.4+34 Hard Elo edge
Surface ELO
4.6Hard Elo 1466
5.1Overall Elo 1519
ELO gap
4.9Overall Elo 1512
5.0No prior meetings
H2H
5.0No prior meetings
7.18 of last 10 on hard
Surface form
0.61 of last 10 on hard
0.0Lost last 3
Win streak
0.0Lost last 10
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
Woo Ku Y.Sharma A.
Freshness·Clear edge
74
91

Woo Ku Y.: 2 days rest · 2 matches, 48 games (7d) · Sharma A.: 3 days rest · 1 match, 19 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-fastrewards aggression
SlowFast
Weather
23°CClear
Wind 10 km/hHumidity 57%

Draw