Lulu Sun vs Antonia Ruzic — Cincinnati Round of 128

Cincinnati · WTA · Round of 128
Lulu Sun
NZL
Lulu Sun
#112WTA
1637ELO
1654Hard ELO
25 yrs · Left-handed
Last 10 · pre-match
LWLLWLLLWW
2 — 0
Sets
Thursday, 7 August 2025
hard
Antonia Ruzic
CRO
Antonia Ruzic
#61WTA
1739ELO
1717Hard ELO
23 yrs · Right-handed
Last 10 · pre-match
LWLLWWLWWL
Sun L.
6-4 6-4
Ruzic A.
Sun L.
662
Ruzic A.
440

Lulu Sun defeated Antonia Ruzic 6-4 6-4 in the Cincinnati round of 128 on hard. The upset overturned the form book — Antonia Ruzic came in ranked #61.

Key context

  • Match story: Lulu Sun edged a tight contest from start to finish — 6–4 6–4.

Head to head

No previous meetings on record.

Serve vs return

This season
Sun L.serving75% hold

wins 61% of points on serve vs Ruzic A.

Ruzic A.serving79% hold

wins 63% of points on serve vs Sun L.

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

Sun L.Ruzic A.
59
Serve
28
0
Return
40

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

Statistics

This season
Sun L.Ruzic A.
1st serve in·Slight edge
56%
64%
1st serve points won·Slight edge
70%
62%
2nd serve points won·Even
48%
48%
Service points won·Even
60%
57%
Return points won·Slight edge
40%
45%
Break points saved·Even
60%
56%
Aces / match·Dominant
5.4
2.4
Double faults / match·Clear edge
3.4
2.5

Averages over each player's completed matches in the selected window (67 vs 88). ATP, WTA & Challenger.

Clutch

Under pressure
Sun L.Ruzic A.
Clutch Rating·Slight edge
72
82
Break points saved·Slight edge
94
84
Break points won·Dominant
52
96
Deciding sets·Slight edge
90
82
Tiebreaks·
78
—

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

Umpiry Score

Pre-match
Sun L.
6.1
Even matchUmpiry Score
Ruzic A.
7.0
Strong advantageUmpiry Score
Form & Matchup
4.6Hard Elo 1654
Surface ELO
5.4+63 Hard Elo edge
4.5Overall Elo 1637
ELO gap
5.5Overall Elo 1739
5.0No prior meetings
H2H
5.0
3.4
Surface form
7.4
Win streak
0.0
Fatigue & Travel
8.2
Minutes 14d
7.8
3-set count
7.0
9.0
Prev. match
8.0
Context
6.0
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
Sun L.Ruzic A.
Freshness·Slight edge
100
95

Sun L.: 18 days rest · Ruzic A.: 11 days rest · 2 matches (14d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast
Weather
28°CClear
Wind 5 km/hHumidity 67%

Draw

Final
Swiatek I.[3]
Paolini J.[7]
7-56-4
Semi-finals
Swiatek I.[3]
Rybakina E.[9]
7-56-3
Paolini J.[7]
Kudermetova V.
6-36-726-3
Quarter-finals
Paolini J.[7]
Gauff C.[2]
2-66-46-3
Kudermetova V.
Gracheva V.
6-16-2
Rybakina E.[9]
Sabalenka A.[1]
6-16-4
Swiatek I.[3]
Kalinskaya A.[28]
6-36-4
R16
Kalinskaya A.[28]
Alexandrova E.[12]
3-67-656-1
Swiatek I.[3]
Cirstea S.
6-46-3
Sabalenka A.[1]
Bouzas Maneiro J.
6-17-5
Paolini J.[7]
Krejcikova B.
6-16-2
Rybakina E.[9]
Keys M.[6]
6-736-46-2
Gracheva V.
Seidel E.
2-66-16-1
Kudermetova V.
Linette M.[31]
6-46-3
Gauff C.[2]
Bronzetti L.
6-26-4
R32
Gauff C.[2]
Yastremska D.[32]
W/O
Swiatek I.[3]
Kostyuk M.[25]
W/O
Bouzas Maneiro J.
Townsend T.
6-46-1
Sabalenka A.[1]
Raducanu E.[30]
7-634-67-65
Keys M.[6]
Ito A.
6-46-0
Cirstea S.
Yuan Y.
6-726-46-4
Alexandrova E.[12]
Joint M.
6-46-3
Seidel E.
Kessler M.[29]
6-42-67-66
Kudermetova V.
Tauson C.[16]
3-67-646-4
Linette M.[31]
Pegula J.[4]
7-653-66-3
Kalinskaya A.[28]
Anisimova A.[5]
7-56-4
Gracheva V.
Muchova K.[11]
6-26-4
Rybakina E.[9]
Mertens E.[19]
4-66-37-5
Paolini J.[7]
Krueger A.[26]
7-626-1
Krejcikova B.
Jovic I.
6-43-66-2
Bronzetti L.
Ostapenko J.[23]
1-66-36-4
R64
Alexandrova E.[12]
Sun L.
6-46-2
Joint M.
Haddad Maia B.[18]
6-44-66-4
Mertens E.[19]
Ngounoue C.
3-67-637-5
Paolini J.[7]
Sakkari M.
7-627-65
Ostapenko J.[23]
Osorio C.
W/O
Muchova K.[11]
Garcia C.
7-637-60
Anisimova A.[5]
Jeanjean L.
W/O
Gracheva V.
Kenin S.[24]
6-776-36-3
Kessler M.[29]
Mcnally C.
6-46-3
Seidel E.
Navarro E.[8]
6-41-66-4
Kalinskaya A.[28]
Stearns P.
7-644-66-1
Sabalenka A.[1]
Vondrousova M.
7-56-1
Yastremska D.[32]
Tomova V.
6-42-66-2
Tauson C.[16]
Tomljanovic A.
6-36-756-4
Linette M.[31]
Sramkova R.
7-646-0
Kostyuk M.[25]
Maria T.
6-06-1
Gauff C.[2]
Wang X.
6-36-2
Kudermetova V.
Bencic B.[17]
6-47-60
Pegula J.[4]
Birrell K.
6-46-3
Townsend T.
Samsonova L.[13]
6-26-4
Jovic I.
Noskova L.[20]
6-36-0
Krueger A.[26]
Sevastova A.
6-40-66-3
Bronzetti L.
Kasatkina D.[15]
6-31-66-4
Raducanu E.[30]
Danilovic O.
6-36-2
Bouzas Maneiro J.
Fernandez L.[21]
6-36-3
Rybakina E.[9]
Zarazua R.
4-66-07-5
Ito A.
Pavlyuchenkova A.[27]
6-14-66-4
Keys M.[6]
Lys E.
1-66-37-61
Swiatek I.[3]
Potapova A.
6-16-4
Cirstea S.
Frech M.[22]
7-642-66-4
Yuan Y.
Shnaider D.[14]
6-41-66-3
Krejcikova B.
Svitolina E.[10]
2-66-46-3
R128
Sramkova R.
Dolehide C.
1-66-47-61
Stearns P.
Wang Y.
6-46-3
Garcia C.
Kartal S.
5-76-46-3
Zarazua R.
Putintseva Y.
3-66-46-2
Maria T.
Osuigwe W.
6-26-3
Ngounoue C.
Baptiste H.
6-14-66-1
Bouzas Maneiro J.
Williams V.
6-46-4
Bronzetti L.
Zhu L.
6-766-27-66
Townsend T.
Collins D.
6-47-62
Lys E.
Pera B.
6-24-67-5
Gracheva V.
Volynets K.
6-43-66-3
Wang X.
Arango E.
7-616-3
Tomova V.
Li A.
6-47-5
Osorio C.
Uchijima M.
7-51-66-4
Krejcikova B.
Parks A.
6-44-66-0
Jovic I.
Sierra S.
6-37-64
Sevastova A.
Bektas E.
6-46-766-1
Sakkari M.
Rakhimova K.
6-33-66-2
Birrell K.
Blinkova A.
6-26-1
Kudermetova V.
Lamens S.
6-16-3
Tomljanovic A.
Bondar A.
7-606-4
Mcnally C.
Inglis M.
6-26-3
Seidel E.
Kudermetova P.
1-66-36-2
Jeanjean L.
Starodubtseva Y.
7-51-66-4
Joint M.
Minnen G.
6-26-3
Sun L.
Ruzic A.
6-46-4
Yuan Y.
Bucsa C.
6-26-2
Cirstea S.
Vekic D.
6-14-66-3
Potapova A.
Siegemund L.
6-46-4
Ito A.
Ruse E.
6-27-66
Danilovic O.
Boulter K.
6-07-5
Vondrousova M.
Cristian J.
6-36-1