Haruka Kaji vs Yeon Woo Ku — W100 Tokyo Round of 32

W100 Tokyo · CHALLENGER · Round of 32
JPN
Haruka Kaji
#270WTA
1421ELO
1412Hard ELO
31 yrs · Right-handed
Last 10 · pre-match
LWWWLWLWLL
0 — 0
Sets
Monday, 20 April 2026
hard
KOR
Yeon Woo Ku
1519ELO
1500Hard ELO
23 yrs
Last 10 · pre-match
LLWWWWWWWW
Kaji H.
6-4 7-6
Ku Y.
Kaji H.
6772
Ku Y.
462–

Haruka Kaji defeated Yeon Woo Ku 6-4 7-6 in the W100 Tokyo round of 32 on hard.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Kaji H.serving45% hold

wins 48% of points on serve vs Ku Y.

Ku Y.serving52% hold

wins 51% of points on serve vs Kaji H.

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

Statistics

This season
Kaji H.Ku Y.
1st serve in·Even
68%
65%
1st serve points won·Even
58%
60%
2nd serve points won·Slight edge
50%
45%
Service points won·Even
55%
55%
Return points won·Even
45%
48%
Break points saved·Even
50%
47%
Aces / match·Slight edge
1.0
1.8
Double faults / match·Clear edge
2.1
3.0

Averages over each player's completed matches in the selected window (26 vs 16). ATP, WTA & Challenger.

Clutch

Under pressure
Kaji H.Ku Y.
Clutch Rating·Slight edge
56
50
Break points saved·Even
52
51
Break points won·Slight edge
91
86
Deciding sets·Slight edge
69
63
Tiebreaks·
—
—

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

Umpiry Score

Pre-match
Kaji H.
6.3
Marginal edgeUmpiry ScorePartial · surface data limited
Ku Y.
5.9
Even matchUmpiry ScorePartial · surface data limited
Form & Matchup
2.8No prior meetings
H2H
7.2
6.6
Surface form
4.0
0.0
Win streak
0.0
Fatigue & Travel
4.0
3-set count
7.0
Context
6.0
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
Kaji H.Ku Y.
Freshness·
—
100

Ku Y.: 18 days rest. Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast

Draw

Final
Preston T.
Tararudee L.
6-14-66-4
Semi-finals
Tararudee L.
Iatcenko P.
6-36-2
Preston T.
Hontama M.
7-646-3
Quarter-finals
Iatcenko P.
Knutson G.
7-654-66-2
Tararudee L.
Sawangkaew M.
6-26-1
Preston T.
Dart H.
6-26-3
Hontama M.
Kinoshita H.
6-14-67-5
R16
Tararudee L.
Yamaguchi M.
6-43-66-3
Knutson G.
Jones E.
6-46-727-65
Preston T.
Kaji H.
6-36-1
Iatcenko P.
Inoue H.
7-666-3
Dart H.
Sakatsume H.
3-66-06-3
Sawangkaew M.
Hibino N.
6-16-2
Hontama M.
Naito Y.
6-16-757-5
Kinoshita H.
Zhu L.
6-26-4
R32
Tararudee L.
Sawashiro K.
3-66-26-0
Jones E.
Koike E.
6-46-4
Hibino N.
Goto R.
6-46-1
Sawangkaew M.
Inglis M.
6-36-2
Inoue H.
Da Silva Fick G.
6-15-76-4
Kinoshita H.
Ito A.
6-36-3
Kaji H.
Ku Y.
6-47-62
Preston T.
Nishimura K.
6-37-5
Hontama M.
Arseneault A.
6-21-67-5
Sakatsume H.
Ma Y.
6-36-4
Naito Y.
Hon P.
6-26-2
Zhu L.
Zhao C.
6-37-62
Dart H.
Gadecki O.
6-27-5
Iatcenko P.
Thandi K.
6-36-0
Yamaguchi M.
Kawaguchi N.
3-66-36-4
Knutson G.
Wong H.
6-36-4