Yue Yuan vs Dayeon BackKorea Open - Seoul Round of 32

Korea Open - Seoul · WTA · Round of 32
#134WTA
1629ELO
1610Hard ELO
$262kYTD
$2.9MCAREER
27 yrs · 184 cm · Right-handed
Last 10 · pre-match
LWWLWLLLLL
1 — 2
Sets
Monday, 21 September 2026 ·
hard
#272WTA
$36kYTD
$161kCAREER
24 yrs
Last 10 · pre-match
LLLWLLLWWW
Yuan Y.
3-6 6-4 1-6
Back D.
Yuan Y.
3611
Back D.
6462

Dayeon Back defeated Yue Yuan in the Round of 32 at the Korea Open in Seoul, advancing with a 6-3, 4-6, 6-1 victory on hard courts. Back converted 36 percent of her break points, while Yuan converted 43 percent; Back secured four service breaks to Yuan's three. The match saw no aces or double faults from Back, while Yuan committed three double faults.

Generated automatically from Umpiry match data.

Momentum · Final
Yuan Y.6/13
Back D.10/14

hold to 0/15to 30to 40 / deucebroken

Key context

  • Match story: Dayeon Back came through a tight passage before pulling clear — 6–3 4–6 6–1.

Head to head

No previous meetings on record.

Statistics

This season
1st serve in·Even
65%
68%
1st serve points won·Even
62%
63%
2nd serve points won·Even
47%
46%
Service points won·Even
57%
58%
Return points won·Slight edge
43%
52%
Break points saved·Even
53%
51%
Aces / match·Clear edge
2.5
0.6
Double faults / match·Slight edge
1.3
2.0

Averages over each player's completed matches in the selected window (43 vs 39). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
11
52
Break points saved·Even
16
19
Break points won·Dominant
44
91
Deciding sets·Dominant
5
93
Tiebreaks·
75

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

Win Probability

Pre-match · updated 04:50 UTC
Yuan Y.35%
Back D.65%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Slight edge · Back D. narrowly ahead

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
5.4
Clear underdogUmpiry ScorePartial · surface data limited
6.9
Slight advantageUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0No prior meetings
4.44 of last 10 on hard
Surface form
10.010 of last 10 on hard
0.0
Win streak
10.013-match win streak
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.

Conditions

Weather
27°CClear
Wind 2 km/hHumidity 41%

Draw