Shuai Zhang vs Madison KeysSan Jose Round of 16

San Jose · WTA · Round of 16
#54WTA
1718ELO
1695Hard ELO
37 yrs · 177 cm · Right-handed
Last 10 · pre-match
LWLLWWLWWL
2 — 0
Sets
Monday, 2 August 2021
hard
#23WTA
1987ELO
1920Hard ELO
$1.1MYTD
$24MCAREER
31 yrs · 178 cm · Right-handed
Last 10 · pre-match
LWWWWWWWWL
Zhang S.
7-5 7-6
Keys M.
Zhang S.
7772
Keys M.
5650

Shuai Zhang defeated Madison Keys 7-5 7-6 in the San Jose round of 16 on hard. The upset overturned the form book — Madison Keys came in ranked #23, but Shuai Zhang had arrived on a 3-match winning run. Shuai Zhang extended the head-to-head to 4–2.

Key context

Head to head

32
DateTournamentRoundSurfaceWinnerScore
2022-08-01San JoseR32hardMadison Keys6-4 6-2
2020-09-28Roland GarrosR128clayShuai Zhang6-3 7-6(2)
2016-01-18Australian OpenR16hardShuai Zhang3-6 6-3 6-3
2014-02-24AcapulcoR32hardShuai Zhang4-6 6-1 6-4
2013-10-07OsakaR16hardMadison Keys6-4 6-0

Serve vs return

This season
Zhang S.serving73% hold

wins 60% of points on serve vs Keys M.

Keys M.serving83% hold

wins 65% of points on serve vs Zhang S.

Serve advantage — Keys M.

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

Zhang S.Keys M.
17
Serve
36
58
Return
29

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%
66%
1st serve points won·Even
64%
67%
2nd serve points won·Even
47%
47%
Service points won·Even
58%
61%
Return points won·Even
42%
44%
Break points saved·Slight edge
52%
59%
Aces / match·Clear edge
2.3
4.1
Double faults / match·Slight edge
2.2
2.8

Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
62
94
Break points saved·Dominant
55
96
Break points won·Slight edge
83
90
Deciding sets·Clear edge
78
97
Tiebreaks·Clear edge
82
96

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
5.8
Slight disadvantageUmpiry Score
  • Extended break: 35 days (−0.7)
Form & Matchup
2.4Hard Elo 1695
Surface ELO
7.6+225 Hard Elo edge
2.0Overall Elo 1718
ELO gap
8.0Overall Elo 1987
5.0
H2H
5.0
3.2
Surface form
4.3
7.03-match win streak
Win streak
Fatigue & Travel
6.2
Minutes 14d
7.0
3-set count
9.0
Prev. match
6.0
Surface transition
7.0
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
96
84

Zhang S.: 12 days rest · 2 matches (14d) · Keys M.: 7 days rest · 1 match, 23 games (7d). Higher means fresher. About

Conditions

Court speed
Mediumbalanced pace
SlowFast