Danielle Collins vs Jelena OstapenkoSan Diego Round of 16

San Diego · WTA · Round of 16
#701WTA
1844ELO
1772Hard ELO
32 yrs · 178 cm · Right-handed
Last 10 · pre-match
LLLWLLWWLL
2 — 1
Sets
Monday, 11 September 2023
hard
#29WTA
1855ELO
1794Hard ELO
$1.2MYTD
$20MCAREER
29 yrs · 177 cm · Right-handed
Last 10 · pre-match
LWWLWWWLWL
Collins D.
2-6 6-3 6-4
Ostapenko J.
Collins D.
2662
Ostapenko J.
6341

Danielle Collins defeated Jelena Ostapenko 2-6 6-3 6-4 in the San Diego round of 16 on hard. The upset overturned the form book — Jelena Ostapenko came in ranked #29, leading the head-to-head 2–1. Danielle Collins narrowed the head-to-head to 2–2.

Key context

Head to head

12
DateTournamentRoundSurfaceWinnerScore
2025-03-31CharlestonR16clayDanielle Collins7-5 6-3
2023-02-06Abu DhabiR32hardJelena Ostapenko7-5 1-6 7-5
2018-03-19MiamiSFhardJelena Ostapenko7-6(1) 6-3

Serve vs return

This season
Collins D.serving75% hold

wins 61% of points on serve vs Ostapenko J.

Ostapenko J.serving73% hold

wins 60% of points on serve vs Collins D.

Even serve battle

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

Collins D.Ostapenko J.
Serve
10
Return
45

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

Statistics

This season
1st serve in·Even
58%
58%
1st serve points won·Even
69%
66%
2nd serve points won·Even
47%
43%
Service points won·Even
60%
57%
Return points won·Even
43%
45%
Break points saved·Slight edge
59%
54%
Aces / match·Even
3.8
4.0
Double faults / match·Slight edge
4.7
5.4

Averages over each player's completed matches in the selected window (126 vs 163). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Even
88
88
Break points saved·Clear edge
95
79
Break points won·Even
99
100
Deciding sets·Slight edge
88
96
Tiebreaks·Slight edge
96
87

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

Umpiry Score

Pre-match
5.4
Clear underdogUmpiry Score
  • Extended break: 28 days (−0.3)
5.9
Even matchUmpiry Score
  • Extended break: 28 days (−0.3)
Form & Matchup
4.9Hard Elo 1772
Surface ELO
5.1+22 Hard Elo edge
5.2Overall Elo 1844
ELO gap
4.8Overall Elo 1855
0.0
H2H
10.0
5.1
Surface form
5.5
0.0
Win streak
Fatigue & Travel
Prev. match
7.0
Context
8.5
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·
93

Ostapenko J.: 10 days rest · 3 matches (14d). Higher means fresher. About

Conditions

Court speed
Medium-slowfavours grinders
SlowFast