Nao Hibino vs Yeon Woo Ku — W100 Incheon Quarter-final

W100 Incheon · CHALLENGER · Quarter-final
Nao Hibino
JPN
Nao Hibino
#235WTA
1560ELO
1523Hard ELO
31 yrs · 163 cm · Right-handed
Last 10 · pre-match
WLWLLWWLWW
2 — 1
Sets
Monday, 22 September 2025
hard
KOR
Yeon Woo Ku
1519ELO
1500Hard ELO
23 yrs
Last 10 · pre-match
LLWWWWWWWW
Hibino N.
4-6 6-2 6-2
Ku Y.
Hibino N.
4662
Ku Y.
6221

Nao Hibino defeated Yeon Woo Ku 4-6 6-2 6-2 in the W100 Incheon quarter-final on hard.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Hibino N.serving44% hold

wins 48% of points on serve vs Ku Y.

Ku Y.serving57% hold

wins 53% of points on serve vs Hibino N.

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
Hibino N.Ku Y.
1st serve in·Even
67%
67%
1st serve points won·Even
62%
61%
2nd serve points won·Even
47%
47%
Service points won·Even
57%
57%
Return points won·Slight edge
44%
49%
Break points saved·Even
54%
56%
Aces / match·Slight edge
2.2
1.1
Double faults / match·Slight edge
2.5
3.2

Averages over each player's completed matches in the selected window (73 vs 89). ATP, WTA & Challenger.

Clutch

Under pressure
Hibino N.Ku Y.
Clutch Rating·Even
53
50
Break points saved·Clear edge
39
51
Break points won·Slight edge
91
86
Deciding sets·Even
66
63
Tiebreaks·
81
—

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

Umpiry Score

Pre-match
Hibino N.
5.6
Slight disadvantageUmpiry Score
  • Extended break: 28 days (−0.3)
Ku Y.
6.1
Even matchUmpiry Score
Form & Matchup
7.1+23 Hard Elo edge
Surface ELO
2.9Hard Elo 1500
7.1Overall Elo 1560
ELO gap
2.9Overall Elo 1519
5.0No prior meetings
H2H
5.0
3.6
Surface form
6.4
0.0
Win streak
0.0Lost last 2
Fatigue & Travel
Minutes 14d
9.2
Prev. match
9.0
Context
5.0
Defending pts
6.0

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
Hibino N.Ku Y.
Freshness·Slight edge
89
100

Hibino N.: 1 day rest · 1 match, 16 games (7d) · Ku Y.: 20 days rest. Higher means fresher. About

Conditions

Court speed
Medium-slowfavours grinders
SlowFast

Draw

Final
Hibino N.
Lee E.
7-57-62
Semi-finals
Lee E.
Kaji H.
7-56-1
Hibino N.
Saito S.
6-46-1
Quarter-finals
Saito S.
Dang Y.
6-46-0
Lee E.
Imamura S.
6-16-3
Kaji H.
Kuramochi M.
6-46-3
Hibino N.
Ku Y.
4-66-26-2
R16
Ku Y.
Matsuda M.
6-26-3
Hibino N.
Shimizu E.
6-36-4
Kaji H.
Zhu A.
6-36-4
Imamura S.
Naklo T.
6-26-3
Lee E.
Panshina V.
6-06-0
Saito S.
Kawaguchi N.
6-46-4
Kuramochi M.
Kobori M.
6-36-3
Dang Y.
Hosogi S.
6-21-67-64
R32
Ku Y.
Kim D.
6-36-1
Kobori M.
Back D.
6-03-66-3
Zhu A.
Choi S.
2-67-627-65
Imamura S.
Chang H.
6-26-3
Kaji H.
Plipuech P.
6-47-64
Hibino N.
Hule P.
6-36-0
Matsuda M.
Koshiishi A.
6-44-66-2
Naklo T.
Jeong B.
1-67-56-4
Shimizu E.
Muramatsu C.
6-36-2
Lee E.
Park S.
6-46-1
Saito S.
Jang S.
6-36-3
Kawaguchi N.
Lee Y.
6-17-5
Hosogi S.
Choi O.
6-26-1
Panshina V.
Nugroho P.
6-12-67-5
Kuramochi M.
Kolodynska J.
6-46-3
Dang Y.
Sato H.
6-46-2