Naomi Osaka vs Saisai Zheng — Tokyo Olympics Round of 64

Tokyo Olympics · WTA · Round of 64
Naomi Osaka
JPN2
Naomi Osaka
#14WTA
1987ELO
1922Hard ELO
$1.1MYTD
$26MCAREER
28 yrs · 180 cm · Right-handed
Last 10 · pre-match
LWWWWLWWWW
2 — 0
Sets
Saturday, 24 July 2021
hard
CHN
Saisai Zheng
#1510WTA
32 yrs · 170 cm · Right-handed
Last 10 · pre-match
LLLLLWLLLL
Osaka N.
6-1 6-4
Zheng S.
Osaka N.
662
Zheng S.
140

Naomi Osaka defeated Saisai Zheng 6-1 6-4 in the Tokyo Olympics round of 64 on hard. The result followed the form book — Naomi Osaka came in ranked #14, leading the head-to-head 1–0. Naomi Osaka extended the head-to-head to 2–0.

Key context

Head to head

1–0
DateTournamentRoundSurfaceWinnerScore
2020-01-20Australian OpenR64hardNaomi Osaka6-2 6-4
View full head-to-head →

Serve vs return

This season
Osaka N.serving85% hold

wins 67% of points on serve vs Zheng S.

Zheng S.serving67% hold

wins 57% of points on serve vs Osaka N.

Serve advantage — Osaka N.

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

Osaka N.Zheng S.
70
Serve
—
60
Return
—

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

Statistics

This season
Osaka N.Zheng S.
1st serve in·Slight edge
55%
66%
1st serve points won·Clear edge
74%
57%
2nd serve points won·Even
49%
46%
Service points won·Slight edge
63%
53%
Return points won·Even
42%
42%
Break points saved·Slight edge
61%
51%
Aces / match·Dominant
6.5
0.9
Double faults / match·Even
2.8
2.5

Averages over each player's completed matches in the selected window (140 vs 46). ATP, WTA & Challenger.

Clutch

Under pressure
Osaka N.Zheng S.
Clutch Rating·Dominant
91
19
Break points saved·Dominant
96
16
Break points won·Dominant
97
71
Deciding sets·Dominant
99
50
Tiebreaks·Dominant
95
40

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

Umpiry Score

Pre-match
Osaka N.
5.4
Clear underdogUmpiry ScorePartial · surface data limited
  • Injury return: 54 days (−1.0)
Zheng S.
4.3
Heavy underdogUmpiry ScorePartial · surface data limited
  • Extended break: 54 days (−0.7)
Form & Matchup
10.0
H2H
0.0
8.8
Surface form
3.6
Fatigue & Travel
6.0
Surface transition
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
Osaka N.Zheng S.
Freshness·
82
—

Osaka N.: 5 days rest · 2 matches, 44 games (7d). Higher means fresher. About

Draw

Final
Bencic B.[9]
Vondrousova M.
7-52-66-3
Bronze
Svitolina E.[4]
Rybakina E.[15]
1-67-656-4
Semi-finals
Bencic B.[9]
Rybakina E.[15]
7-624-66-3
Vondrousova M.
Svitolina E.[4]
6-36-1
Quarter-finals
Svitolina E.[4]
Giorgi C.
6-46-4
Vondrousova M.
Badosa P.
6-30-0
Bencic B.[9]
Pavlyuchenkova A.[13]
6-03-66-3
Rybakina E.[15]
Muguruza G.[7]
7-56-1
R16
Svitolina E.[4]
Sakkari M.[14]
5-76-36-4
Muguruza G.[7]
Van Uytvanck A.
6-46-1
Vondrousova M.
Osaka N.[2]
6-16-4
Pavlyuchenkova A.[13]
Sorribes Tormo S.
6-16-3
Bencic B.[9]
Krejcikova B.[8]
1-66-26-3
Rybakina E.[15]
Vekic D.
7-636-4
Giorgi C.
Pliskova K.[5]
6-46-2
Badosa P.
Podoroska N.
6-26-3
R32
Vekic D.
Sabalenka A.[3]
6-43-67-63
Badosa P.
Swiatek I.[6]
6-37-64
Sorribes Tormo S.
Ferro F.
6-16-4
Osaka N.[2]
Golubic V.
6-36-2
Pliskova K.[5]
Suarez Navarro C.
6-36-706-1
Muguruza G.[7]
Wang Q.
6-36-0
Bencic B.[9]
Doi M.
6-26-4
Podoroska N.
Alexandrova E.
6-16-3
Pavlyuchenkova A.[13]
Friedsam A.
6-16-1
Krejcikova B.[8]
Fernandez L.
6-26-4
Rybakina E.[15]
Peterson R.
6-26-3
Van Uytvanck A.
Kvitova P.[10]
5-76-36-0
Giorgi C.
Vesnina E.
6-36-1
Sakkari M.[14]
Stojanovic N.
6-16-2
Svitolina E.[4]
Tomljanovic A.
4-66-36-4
Vondrousova M.
Buzarnescu M.
6-16-2
R64
Sorribes Tormo S.
Barty A.[1]
6-46-3
Pliskova K.[5]
Cornet A.
6-16-3
Suarez Navarro C.
Jabeur O.
6-46-1
Rybakina E.[15]
Stosur S.
6-46-2
Krejcikova B.[8]
Diyas Z.
5-2
Ferro F.
Sevastova A.
2-66-46-2
Svitolina E.[4]
Siegemund L.
6-35-76-4
Podoroska N.
Putintseva Y.
7-641-3
Tomljanovic A.
Shvedova Y.
7-53-2
Osaka N.[2]
Zheng S.
6-16-4
Van Uytvanck A.
Jorovic I.
6-36-2
Vekic D.
Garcia C.
6-26-726-3
Vondrousova M.
Bertens K.[16]
6-43-66-4
Pavlyuchenkova A.[13]
Errani S.
6-06-1
Alexandrova E.
Mertens E.[12]
4-66-46-4
Kvitova P.[10]
Paolini J.
6-46-3
Bencic B.[9]
Pegula J.
6-36-3
Badosa P.
Mladenovic K.
6-746-36-0
Wang Q.
Cepede Royg V.
6-46-3
Friedsam A.
Watson H.
7-656-3
Doi M.
Zarazua R.
6-36-2
Fernandez L.
Yastremska D.
6-33-66-0
Sabalenka A.[3]
Linette M.
6-26-1
Peterson R.
Sherif M.
7-57-61
Muguruza G.[7]
Kudermetova V.
7-57-5
Giorgi C.
Brady J.[11]
6-36-2
Sakkari M.[14]
Kontaveit A.
7-56-2
Stojanovic N.
Hibino N.
6-36-3
Swiatek I.[6]
Barthel M.
6-26-2
Buzarnescu M.
Riske Amritraj A.
6-707-56-4
Golubic V.
Osorio C.
6-46-1
Vesnina E.
Ostapenko J.
6-46-726-4