Kayla Day vs Moyuka UchijimaTokyo Round of 32

Tokyo · WTA · Round of 32
#137WTA
1595ELO
1576Hard ELO
26 yrs · 173 cm · Left-handed
Last 10 · pre-match
LWWWLLWLWL
2 — 0
Sets
Monday, 25 September 2023
hard
#108WTA
1681ELO
1633Hard ELO
24 yrs · 171 cm · Right-handed
Last 10 · pre-match
LLWWWWWLLL
Day K.
6-2 6-2
Uchijima M.
Day K.
662
Uchijima M.
220

Kayla Day defeated Moyuka Uchijima 6-2 6-2 in the Tokyo round of 32 on hard. The upset overturned the form book — Moyuka Uchijima came in ranked #108.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Day K.serving75% hold

wins 61% of points on serve vs Uchijima M.

Uchijima M.serving69% hold

wins 58% of points on serve vs Day K.

Serve advantage — Day K.

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Serve & return on hard

Day K.Uchijima M.
Serve
0
Return
8

Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About

Statistics

This season
1st serve in·Slight edge
63%
57%
1st serve points won·Even
66%
64%
2nd serve points won·Even
46%
44%
Service points won·Even
58%
56%
Return points won·Even
44%
43%
Break points saved·Even
56%
52%
Aces / match·Slight edge
3.3
2.6
Double faults / match·Dominant
2.9
4.8

Averages over each player's completed matches in the selected window (127 vs 154). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
39
71
Break points saved·Even
66
66
Break points won·Even
88
91
Deciding sets·Dominant
18
78
Tiebreaks·Clear edge
67
88

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

Umpiry Score

Pre-match
4.2
Heavy underdogUmpiry Score
  • Extended break: 49 days (−0.7)
6.5
Marginal edgeUmpiry Score
Form & Matchup
4.0Hard Elo 1576
Surface ELO
6.0+57 Hard Elo edge
3.3Overall Elo 1595
ELO gap
6.7Overall Elo 1681
5.0No prior meetings
H2H
5.0
1.4
Surface form
4.9
0.0
Win streak
Fatigue & Travel
Minutes 14d
5.5
3-set count
4.0
Prev. match
7.0
Country comfort
7.0
Context
5.0
Defending pts
5.0

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·
95

Day K.: 11 days rest · 1 match (14d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast
Weather
25°COvercast
Wind 18 km/hHumidity 49%