Francesca Jones vs Solana SierraSao Paulo Quarter-final

Sao Paulo · WTA · Quarter-final
#106WTA
1619ELO
1581Hard ELO
25 yrs · 173 cm · Right-handed
Last 10 · pre-match
LWLLLLLWLL
2 — 0
Sets
Monday, 8 September 2025
hard
#56WTA
1783ELO
1657Hard ELO
22 yrs · Right-handed
Last 10 · pre-match
LWLWWLWLWW
Jones F.
6-3 6-4
Sierra S.
Jones F.
662
Sierra S.
340

Francesca Jones defeated Solana Sierra 6-3 6-4 in the Sao Paulo quarter-final on hard. The upset overturned the form book — Solana Sierra came in ranked #56.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Jones F.serving71% hold

wins 59% of points on serve vs Sierra S.

Sierra S.serving69% hold

wins 58% of points on serve vs Jones F.

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

Jones F.Sierra S.
3
Serve
12
27
Return
6

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
66%
63%
1st serve points won·Even
64%
64%
2nd serve points won·Even
47%
45%
Service points won·Even
58%
57%
Return points won·Even
45%
45%
Break points saved·Even
57%
56%
Aces / match·Even
2.0
2.3
Double faults / match·Clear edge
3.9
4.7

Averages over each player's completed matches in the selected window (80 vs 71). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Slight edge
76
86
Break points saved·Even
80
81
Break points won·Even
96
96
Deciding sets·Clear edge
70
92
Tiebreaks·Even
89
88

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

Umpiry Score

Pre-match
6.9
Slight advantageUmpiry Score
5.4
Clear underdogUmpiry Score
  • Extended break: 22 days (−0.3)
Form & Matchup
4.9Hard Elo 1581
Surface ELO
5.1+76 Hard Elo edge
4.7Overall Elo 1619
ELO gap
5.3Overall Elo 1783
5.0No prior meetings
H2H
5.0
8.5
Surface form
4.9
0.0
Win streak
0.0
Fatigue & Travel
7.0
3-set count
Prev. match
6.0
Context
5.0
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
Freshness·Clear edge
73
90

Jones F.: 2 days rest · 2 matches, 49 games (7d) · Sierra S.: 10 days rest · 2 matches (14d). Higher means fresher. About

Conditions

Court speed
Mediumbalanced pace
SlowFast