Ena Shibahara vs Kayla Day — Us Open Qualifying Round 1

Us Open · CHALLENGER · Qualifying Round 1
Ena Shibahara
JPN
Ena Shibahara
#404WTA
1464ELO
1438Hard ELO
28 yrs · 170 cm · Right-handed
Last 10 · pre-match
LLLLWWWWLL
0 — 0
Sets
Monday, 25 August 2025
hard
USA
Kayla Day
#137WTA
1595ELO
1576Hard ELO
26 yrs · 173 cm · Left-handed
Last 10 · pre-match
LWWWLLWLWL
Shibahara E.
7-5 6-1
Day K.
Shibahara E.
762
Day K.
51–

Ena Shibahara defeated Kayla Day 7-5 6-1 in the Us Open qualifying round 1 on hard. The upset overturned the form book — Kayla Day came in ranked #137.

Key context

  • Match story: Ena Shibahara came through a tight passage before pulling clear — 7–5 6–1.

Head to head

No previous meetings on record.

Serve vs return

This season
Shibahara E.serving54% hold

wins 52% of points on serve vs Day K.

Day K.serving70% hold

wins 58% of points on serve vs Shibahara E.

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
Shibahara E.Day K.
1st serve in·Slight edge
59%
64%
1st serve points won·Even
66%
67%
2nd serve points won·Even
49%
47%
Service points won·Even
59%
60%
Return points won·Slight edge
41%
47%
Break points saved·Even
56%
55%
Aces / match·Slight edge
4.0
3.2
Double faults / match·Clear edge
3.5
2.7

Averages over each player's completed matches in the selected window (60 vs 76). ATP, WTA & Challenger.

Clutch

Under pressure
Shibahara E.Day K.
Clutch Rating·Slight edge
47
39
Break points saved·Slight edge
74
66
Break points won·Clear edge
65
88
Deciding sets·Clear edge
36
18
Tiebreaks·Clear edge
91
67

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

Umpiry Score

Pre-match
Shibahara E.
5.9
Even matchUmpiry Score
Day K.
7.5
Dominant favouriteUmpiry Score
Form & Matchup
3.2Hard Elo 1438
Surface ELO
6.8+138 Hard Elo edge
3.3Overall Elo 1464
ELO gap
6.7Overall Elo 1595
5.0No prior meetings
H2H
5.0
6.0
Surface form
8.5
0.0Lost last 2
Win streak
9.07-match win streak
Context
6.0
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
Shibahara E.Day K.
Freshness·
—
95

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

Conditions

Court speed
Fastbig serves, short points
SlowFast

Draw — qualifying

Q3
Valentova T.
Rus A.
6-26-2
Tjen J.
Ito A.
6-16-2
Galfi D.
Udvardy P.
6-36-4
Hon P.
Vandewinkel H.
6-36-3
Shibahara E.
Gracheva V.
6-06-4
Volynets K.
Fett J.
5-76-26-3
Jimenez Kasintseva V.
Jones E.
7-57-67
Wang X.
Charaeva A.
6-44-66-2
Selekhmeteva O.
Akli A.
7-52-66-2
Marino R.
Salkova D.
6-32-66-1
Inoue H.
Stefanini L.
7-646-1
Liu C.
Erjavec V.
7-56-4
Jones F.
Hartono A.
6-26-4
Aiava D.
Seidel E.
5-76-17-66
Zhang S.
Wei S.
6-16-3
Semenistaja D.
Klimovicova L.
6-37-60
Q2
Hartono A.
Gadecki O.
6-44-66-4
Tjen J.
Chwalinska M.
7-57-5
Vandewinkel H.
Tomova V.
3-67-56-4
Hon P.
Niemeier J.
6-46-3
Volynets K.
Honer A.
6-26-741-0
Fett J.
Andrianjafitrimo T.
6-757-56-4
Aiava D.
Mikulskyte J.
2-66-16-4
Wei S.
Romero Gormaz L.
4-66-16-1
Jones E.
Pigossi L.
6-46-4
Charaeva A.
Marcinko P.
1-66-17-5
Wang X.
Martic P.
7-56-4
Marino R.
Hontama M.
6-12-66-1
Selekhmeteva O.
Shymanovich I.
6-26-3
Salkova D.
Dmitruk K.
6-35-77-68
Inoue H.
Waltert S.
6-36-2
Liu C.
Inglis M.
6-37-5
Erjavec V.
Brace C.
6-46-4
Jones F.
Gorgodze E.
6-17-611
Valentova T.
Prozorova T.
7-56-1
Rus A.
Burrage J.
6-746-46-4
Ito A.
Maristany Zuleta De Reales G.
6-01-66-1
Galfi D.
Crawley F.
6-26-2
Udvardy P.
Leonard M.
6-26-1
Gracheva V.
Wurth T.
7-56-2
Shibahara E.
Pridankina E.
7-657-67
Seidel E.
Vickery S.
6-16-2
Zhang S.
Vidmanova D.
6-46-0
Jimenez Kasintseva V.
Sharma A.
2-66-36-3
Semenistaja D.
Cabrera L.
6-16-2
Klimovicova L.
Ponchet J.
6-36-3
Akli A.
Dart H.
7-646-1
Stefanini L.
Zhao C.
6-16-4
Q1
Jones F.
Hruncakova V.
6-36-4
Gorgodze E.
Watson H.
3-66-36-4
Hartono A.
Sanchez A.
2-66-46-3
Gadecki O.
Koevermans A.
3-66-36-1
Valentova T.
Barthel M.
6-26-4
Burrage J.
Tig P.
6-46-0
Rus A.
Martinez Cirez C.
6-46-2
Ito A.
Friedsam A.
6-45-76-3
Chwalinska M.
Pedone G.
6-26-0
Tjen J.
Lepchenko V.
6-36-1
Maristany Zuleta De Reales G.
Rakotomanga Rajaonah T.
6-27-64
Galfi D.
Urhobo A.
6-26-4
Udvardy P.
Ormaechea P.
6-46-1
Tomova V.
Burillo Escorihuela I.
6-36-0
Niemeier J.
Saville D.
6-06-2
Hon P.
Brancaccio N.
7-56-4
Gracheva V.
Brengle M.
7-56-3
Wurth T.
Rodionova A.
6-17-5
Pridankina E.
Palicova B.
5-76-36-4
Shibahara E.
Day K.
7-56-1
Volynets K.
Costoulas S.
6-36-4
Honer A.
Osuigwe W.
6-26-3
Andrianjafitrimo T.
Hercog P.
5-76-26-4
Aiava D.
Bejlek S.
6-44-66-4
Mikulskyte J.
Okamura K.
6-37-5
Zhang S.
Stoiana M.
7-56-3
Vidmanova D.
Iyengar M.
6-16-2
Wei S.
Cengiz B.
6-26-2
Romero Gormaz L.
Naef C.
6-46-4
Jones E.
Pera B.
6-14-66-2
Pigossi L.
Zidansek T.
5-77-626-3
Sharma A.
Radivojevic L.
7-56-4
Jimenez Kasintseva V.
Nguyen A.
6-27-5
Marcinko P.
Gao X.
6-26-1
Charaeva A.
Ekstrand M.
6-36-4
Martic P.
Fruhvirtova L.
6-36-0
Semenistaja D.
Lazaro Garcia A.
2-66-27-5
Cabrera L.
Oliynykova O.
6-26-4
Ponchet J.
Mandlik E.
6-46-2
Dart H.
Todoni A.
7-56-737-66
Shymanovich I.
Kraus S.
6-32-67-5
Salkova D.
Grabher J.
7-53-66-2
Hontama M.
Penickova K.
6-04-67-64
Marino R.
Tararudee L.
6-32-67-5
Zhao C.
Carle M.
7-686-2
Brace C.
Hibino N.
2-66-36-3
Erjavec V.
Timofeeva M.
6-36-1
Vickery S.
Soboleva A.
7-57-5
Stefanini L.
Diatchenko V.
7-666-2
Inoue H.
Davis L.
6-16-2
Waltert S.
Snigur D.
4-66-16-2
Prozorova T.
Trevisan M.
6-36-3
Crawley F.
Chirico L.
6-26-3
Leonard M.
Nahimana S.
6-36-4
Vandewinkel H.
Stakusic M.
6-36-2
Fett J.
Garland J.
6-26-4
Seidel E.
Von Deichmann K.
6-36-2
Wang X.
Branstine C.
3-66-36-3
Klimovicova L.
Korneeva A.
7-646-726-4
Akli A.
Vedder E.
7-56-2
Selekhmeteva O.
Riera J.
2-66-06-3
Dmitruk K.
Juvan K.
7-56-4
Liu C.
Kawa K.
6-16-3
Inglis M.
Hunter S.
6-36-4