Kayla Day vs Emiliana Arango — Guadalajara 125 Quarter-final

Guadalajara 125 · CHALLENGER · Quarter-final
USA
Kayla Day
#126WTA
1595ELO
1576Hard ELO
26 yrs · 173 cm · Left-handed
Last 10 · pre-match
LWWWLLWLWL
0 — 0
Sets
Monday, 1 September 2025
hard
Emiliana Arango
COL
Emiliana Arango
#96WTA
1624ELO
1576Hard ELO
25 yrs · 172 cm · Right-handed
Last 10 · pre-match
LWLLWWWLLL
Day K.
7-5 6-2
Arango E.
Day K.
762
Arango E.
52–

Kayla Day defeated Emiliana Arango 7-5 6-2 in the Guadalajara 125 quarter-final on hard. The upset overturned the form book — Emiliana Arango came in ranked #96, defending last year's semi-final.

Key context

  • Match story: Kayla Day closed it out in two sets, 7–5 6–2.

Head to head

No previous meetings on record.

Serve vs return

This season
Day K.serving54% hold

wins 52% of points on serve vs Arango E.

Arango E.serving40% hold

wins 46% of points on serve vs Day K.

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

Serve & return on hard

Day K.Arango E.
—
Serve
0
—
Return
62

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

Statistics

This season
Day K.Arango E.
1st serve in·Slight edge
64%
70%
1st serve points won·Slight edge
67%
57%
2nd serve points won·Even
47%
44%
Service points won·Slight edge
59%
53%
Return points won·Even
47%
47%
Break points saved·Even
56%
54%
Aces / match·Clear edge
3.4
0.9
Double faults / match·Even
2.7
2.9

Averages over each player's completed matches in the selected window (76 vs 70). ATP, WTA & Challenger.

Clutch

Under pressure
Day K.Arango E.
Clutch Rating·Clear edge
39
57
Break points saved·Slight edge
66
56
Break points won·Slight edge
88
81
Deciding sets·Dominant
18
70
Tiebreaks·Slight edge
67
75

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

Umpiry Score

Pre-match
Day K.
6.2
Even matchUmpiry Score
Arango E.
5.7
Slight disadvantageUmpiry Score
  • Extended break: 25 days (−0.3)
Form & Matchup
5.0Hard Elo 1576
Surface ELO
5.0Hard Elo 1576
4.5Overall Elo 1595
ELO gap
5.5Overall Elo 1624
0.0No prior meetings
H2H
10.0
7.1
Surface form
5.1
0.0
Win streak
0.0Lost last 3
Fatigue & Travel
Prev. match
8.0
Context
6.0
Defending pts
8.5

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
Day K.Arango E.
Freshness·Slight edge
97
89

Day K.: 13 days rest · 1 match (14d) · Arango E.: 5 days rest · 2 matches, 33 games (7d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast

Draw

Final
Eala A.
Udvardy P.
1-67-56-3
Semi-finals
Udvardy P.
Kozyreva M.
6-36-4
Eala A.
Day K.
6-26-3
Quarter-finals
Udvardy P.
Jones F.
6-44-66-3
Kozyreva M.
Smith A.
7-6106-4
Day K.
Arango E.
7-56-2
Eala A.
Fossa Huergo N.
7-626-2
R16
Udvardy P.
Bartunkova N.
7-676-2
Smith A.
Jimenez Kasintseva V.
2-66-47-5
Kozyreva M.
Trevisan M.
6-36-3
Jones F.
Pigossi L.
6-46-4
Day K.
Sanchez A.
6-16-4
Arango E.
Pridankina E.
7-666-1
Fossa Huergo N.
Kawa K.
6-726-06-1
Eala A.
Lepchenko V.
6-737-636-3
R32
Udvardy P.
Hinojosa Gomez J.
6-36-2
Sanchez A.
Marino R.
4-66-26-4
Lepchenko V.
Inglis M.
6-46-1
Smith A.
Rogers A.
7-57-5
Jimenez Kasintseva V.
Rakhimova K.
6-17-62
Kozyreva M.
Kulikova A.
7-606-1
Pigossi L.
Shymanovich I.
6-04-66-4
Bartunkova N.
Oktiabreva A.
6-04-66-1
Fossa Huergo N.
Sousa Salazar N.
6-26-3
Trevisan M.
Gadecki O.
6-36-2
Day K.
Bektas E.
6-43-66-4
Pridankina E.
Stakusic M.
3-66-06-1
Arango E.
Stefanini L.
7-636-0
Kawa K.
Hesse A.
6-46-3
Eala A.
Hartono A.
6-26-2
Jones F.
Rodriguez V.
7-616-0