Xinxin Yao vs Maya JointKorea Open - Seoul Round of 32

Korea Open - Seoul · WTA · Round of 32
#284WTA
1450ELO
1440Hard ELO
$31kYTD
$190kCAREER
22 yrs · Left-handed
Last 10 · pre-match
WWLLWWLLLL
1 — 2
Sets
Monday, 21 September 2026 ·
hard
#99WTA
1659ELO
1657Hard ELO
$937kYTD
$2.3MCAREER
20 yrs · 167 cm · Right-handed
Last 10 · pre-match
LWLWWLLWWW
Yao X.
6-2 6-7 3-6
Joint M.
Yao X.
66731
Joint M.
27962

Maya Joint defeated Xinxin Yao in the Round of 32 at the Korea Open in Seoul, advancing with a 2-6, 7-6, 6-3 victory. The match saw Joint and Yao record identical numbers in service breaks and break points converted percentage. Joint served two aces to Yao's none, while Joint had six double faults to Yao's seven.

Generated automatically from Umpiry match data.

Momentum · Final
Yao X.10/16
Joint M.8/15

hold to 0/15to 30to 40 / deucebroken

Key context

Head to head

No previous meetings on record.

Statistics

This season
1st serve in·Even
67%
64%
1st serve points won·Even
59%
56%
2nd serve points won·Even
48%
45%
Service points won·Even
56%
52%
Return points won·Slight edge
47%
41%
Break points saved·Even
54%
56%
Aces / match·Slight edge
0.8
1.6
Double faults / match·Clear edge
1.7
2.9

Averages over each player's completed matches in the selected window (48 vs 21). ATP, WTA & Challenger.

Win Probability

Pre-match · updated 02:50 UTC
Yao X.31%
Joint M.69%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Clear favourite · Joint M. 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
5.3
Clear underdogUmpiry Score
  • Back-to-back day (−0.5)
6.8
Slight advantageUmpiry Score
Form & Matchup
2.3Hard Elo 1440
Surface ELO
7.7+218 Hard Elo edge
2.4Overall Elo 1450
ELO gap
7.6Overall Elo 1659
5.0No prior meetings
H2H
5.0No prior meetings
9.39 of last 10 on hard
Surface form
5.56 of last 10 on hard
10.08-match win streak
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
Opponent rise
5.0Opponent hot: 9 of last 10

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·Clear edge
55
77

Yao X.: 1 day rest · 3 matches, 85 games (7d) · Joint M.: 1 day rest · 1 match, 30 games (7d). Higher means fresher. About

Conditions

Weather
25°CClear
Wind 2 km/hHumidity 43%

Draw