Elise Mertens vs Lulu SunUS Open Round of 64

US Open · WTA · Round of 64
#24WTA
1894ELO
1847Hard ELO
$1.6MYTD
$19MCAREER
30 yrs · 179 cm · Right-handed
Last 10 · pre-match
LWWWWLWLWL
0 — 0
Sets
Monday, 25 August 2025
hard
#112WTA
1637ELO
1654Hard ELO
25 yrs · Left-handed
Last 10 · pre-match
LWLLWLLLWW
Mertens E.
6-2 6-3
Sun L.
Mertens E.
662
Sun L.
23

Elise Mertens defeated Lulu Sun 6-2 6-3 in the US Open round of 64 on hard. The result followed the form book — Elise Mertens came in ranked #24, defending last year's round of 16.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Mertens E.serving85% hold

wins 66% of points on serve vs Sun L.

Sun L.serving75% hold

wins 61% of points on serve vs Mertens E.

Serve advantage — Mertens E.

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

Mertens E.Sun L.
51
Serve
59
54
Return
0

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%
56%
1st serve points won·Even
70%
70%
2nd serve points won·Even
48%
48%
Service points won·Even
61%
60%
Return points won·Slight edge
45%
40%
Break points saved·Even
59%
61%
Aces / match·Slight edge
4.5
5.4
Double faults / match·Slight edge
3.9
3.5

Averages over each player's completed matches in the selected window (68 vs 67). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Slight edge
80
72
Break points saved·Even
90
94
Break points won·Dominant
96
52
Deciding sets·Clear edge
76
90
Tiebreaks·Even
75
78

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

Freshness

Recent load
Freshness·Clear edge
81
100

Mertens E.: 5 days rest · 2 matches, 41 games (7d) · Sun L.: 19 days rest. Higher means fresher. About

Conditions

Court speed
Medium-fastrewards aggression
SlowFast
Weather
29°CClear
Wind 7 km/hHumidity 45%

Draw

R128
Kudermetova P.
Parrizas Diaz N.
2-2
Swiatek I.
Arango E.
6-16-2
Mcnally C.
Teichmann J.
6-26-2
Uchijima M.
Danilovic O.
7-624-67-69
Ostapenko J.
Wang X.
6-46-3
Townsend T.
Ruzic A.
6-46-4
Blinkova A.
Starodubtseva Y.
6-36-1
Sabalenka A.
Masarova R.
7-56-1
Jacquemot E.
Bouzkova M.
6-46-3
Fernandez L.
Marino R.
6-26-1
Sun L.
Osorio C.
6-42-66-0
Bucsa C.
Liu C.
6-26-1
Eala A.
Tauson C.
6-32-67-611
Rybakina E.
Pareja J.
6-36-0
Valentova T.
Bronzetti L.
6-33-66-4
Raducanu E.
Shibahara E.
6-16-2
Tjen J.
Kudermetova V.
6-44-66-4
Kessler M.
Linette M.
7-57-5
Vondrousova M.
Selekhmeteva O.
6-37-63
Li A.
Sramkova R.
4-66-26-4
Jovic I.
Sasnovich A.
7-666-3
Paolini J.
Aiava D.
6-27-64
Hon P.
Jeanjean L.
6-37-5
Pegula J.
Sherif M.
6-06-4
Samsonova L.
Yuan Y.
2-66-46-4
Pavlyuchenkova A.
Yastremska D.
6-757-656-4
Azarenka V.
Inoue H.
7-606-4
Navarro E.
Wang Y.
7-696-3
Lamens S.
Glozman V.
6-46-2
Potapova A.
Zhu L.
6-44-66-2
Putintseva Y.
Cocciaretto E.
6-47-64
Siegemund L.
Shnaider D.
7-632-66-3
Zakharova A.
Avanesyan E.
6-36-4
Wang X.
Dolehide C.
2-66-46-2
Alexandrova E.
Sevastova A.
6-46-1
Bondar A.
Svitolina E.
6-26-4
Sakkari M.
Maria T.
6-36-2
Haddad Maia B.
Kartal S.
6-31-66-1
Krueger A.
Kenin S.
5-76-46-2
Gauff C.
Tomljanovic A.
6-46-727-5
Vekic D.
Bouzas Maneiro J.
3-67-56-3
Baptiste H.
Siniakova K.
7-56-3
Rakhimova K.
Garcia C.
6-44-66-3
Stearns P.
Semenistaja D.
7-56-0
Frech M.
Gibson T.
6-26-2
Parry D.
Kvitova P.
6-16-0
Sonmez Z.
Volynets K.
6-36-4
Osaka N.
Minnen G.
6-36-4
Kostyuk M.
Boulter K.
6-46-4
Noskova L.
Galfi D.
6-47-5
Lys E.
Jones F.
6-07-5
Cirstea S.
Sierra S.
7-56-0
Bencic B.
Zhang S.
6-36-3
Mertens E.
Ahn A.
6-16-0
Kasatkina D.
Ruse E.
7-56-1
Krejcikova B.
Mboko V.
6-36-2
Andreeva M.
Parks A.
6-06-1
Zarazua R.
Keys M.
6-7107-637-5
Muchova K.
Williams V.
6-32-66-1
Anisimova A.
Birrell K.
6-36-2
Joint M.
Jimenez Kasintseva V.
6-47-66
Cristian J.
Collins D.
6-26-0
Golubic V.
Boisson L.
3-67-636-2
Kalinskaya A.
Ngounoue C.
6-05-76-4