Moyuka Uchijima vs Solana Sierra — Australian Open Round of 128

Australian Open · WTA · Round of 128
JPN
Moyuka Uchijima
#108WTA
1681ELO
1633Hard ELO
24 yrs · 171 cm · Right-handed
Last 10 · pre-match
LLWWWWWLLL
2 — 0
Sets
Monday, 19 January 2026
hard
Solana Sierra
ARG
Solana Sierra
#56WTA
1783ELO
1657Hard ELO
22 yrs · Right-handed
Last 10 · pre-match
LWLWWLWLWW
Uchijima M.
6-3 6-1
Sierra S.
Uchijima M.
662
Sierra S.
310

Moyuka Uchijima defeated Solana Sierra 6-3 6-1 in the Australian Open round of 128 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
Uchijima M.serving72% hold

wins 59% of points on serve vs Sierra S.

Sierra S.serving57% hold

wins 53% of points on serve vs Uchijima M.

Serve advantage — Uchijima 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

Uchijima M.Sierra S.
0
Serve
12
8
Return
6

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

Statistics

This season
Uchijima M.Sierra S.
1st serve in·Even
61%
63%
1st serve points won·Even
64%
62%
2nd serve points won·Even
44%
41%
Service points won·Even
56%
54%
Return points won·Slight edge
47%
42%
Break points saved·Even
50%
54%
Aces / match·Even
2.1
2.2
Double faults / match·Clear edge
3.2
4.5

Averages over each player's completed matches in the selected window (30 vs 21). ATP, WTA & Challenger.

Clutch

Under pressure
Uchijima M.Sierra S.
Clutch Rating·Clear edge
71
86
Break points saved·Clear edge
66
81
Break points won·Slight edge
91
96
Deciding sets·Clear edge
78
92
Tiebreaks·Even
88
88

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

Umpiry Score

Pre-match
Uchijima M.
5.9
Even matchUmpiry Score
Sierra S.
6.4
Marginal edgeUmpiry Score
Form & Matchup
5.6Hard Elo 1633
Surface ELO
4.4+24 Hard Elo edge
5.5Overall Elo 1681
ELO gap
4.5Overall Elo 1783
5.0No prior meetings
H2H
5.0
3.4
Surface form
5.2
0.0Lost last 2
Win streak
Fatigue & Travel
Minutes 14d
8.1
3-set count
4.0
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
Uchijima M.Sierra S.
Freshness·
—
90

Sierra S.: 10 days rest · 2 matches (14d). Higher means fresher. About

Conditions

Court speed
Medium-fastrewards aggression
SlowFast
Weather
31°CPartly cloudy
Wind 5 km/hHumidity 28%

Draw

Final
Rybakina E.[5]
Sabalenka A.[1]
6-44-66-4
Semi-finals
Sabalenka A.[1]
Svitolina E.[12]
6-26-3
Rybakina E.[5]
Pegula J.[6]
6-37-67
Quarter-finals
Svitolina E.[12]
Gauff C.[3]
6-16-2
Pegula J.[6]
Anisimova A.[4]
6-27-61
Rybakina E.[5]
Swiatek I.[2]
7-56-1
Sabalenka A.[1]
Jovic I.[29]
6-36-0
R16
Gauff C.[3]
Muchova K.[19]
6-13-66-3
Anisimova A.[4]
Wang X.
7-646-4
Swiatek I.[2]
Inglis M.
6-06-3
Sabalenka A.[1]
Mboko V.[17]
6-17-61
Svitolina E.[12]
Andreeva M.[8]
6-26-4
Pegula J.[6]
Keys M.[9]
6-36-4
Rybakina E.[5]
Mertens E.[21]
6-16-3
Jovic I.[29]
Putintseva Y.
6-06-1
R32
Gauff C.[3]
Baptiste H.
3-66-06-3
Inglis M.
Osaka N.[16]
W/O
Sabalenka A.[1]
Potapova A.
7-647-67
Rybakina E.[5]
Valentova T.
6-26-3
Wang X.
Noskova L.[13]
7-56-4
Putintseva Y.
Sonmez Z.
6-36-736-3
Andreeva M.[8]
Ruse E.
6-36-4
Muchova K.[19]
Linette M.
6-16-1
Jovic I.[29]
Paolini J.[7]
6-27-63
Mboko V.[17]
Tauson C.[14]
7-655-76-3
Anisimova A.[4]
Stearns P.
6-16-4
Pegula J.[6]
Selekhmeteva O.
6-36-2
Mertens E.[21]
Bartunkova N.
6-06-4
Keys M.[9]
Pliskova K.
6-36-3
Swiatek I.[2]
Kalinskaya A.[31]
6-11-66-1
Svitolina E.[12]
Shnaider D.[23]
7-646-3
R64
Muchova K.[19]
Parks A.
4-66-46-4
Mboko V.[17]
Mcnally C.
6-46-3
Kalinskaya A.[31]
Grabher J.
6-36-3
Linette M.
Li A.
6-36-3
Bartunkova N.
Bencic B.[10]
6-30-66-4
Andreeva M.[8]
Sakkari M.
6-06-4
Stearns P.
Marcinko P.
6-27-5
Tauson C.[14]
Kudermetova P.
6-33-67-5
Jovic I.[29]
Hon P.
6-16-2
Gauff C.[3]
Danilovic O.
6-26-2
Swiatek I.[2]
Bouzkova M.
6-26-3
Osaka N.[16]
Cirstea S.
6-34-66-2
Ruse E.
Tomljanovic A.
6-46-4
Noskova L.[13]
Preston T.
6-24-66-2
Sabalenka A.[1]
Bai Z.
6-36-1
Pegula J.[6]
Kessler M.
6-06-2
Shnaider D.[23]
Gibson T.
3-67-56-3
Valentova T.
Fruhvirtova L.
7-52-66-3
Sonmez Z.
Bondar A.
6-26-4
Svitolina E.[12]
Klimovicova L.
7-56-1
Inglis M.
Siegemund L.
6-46-737-67
Mertens E.[21]
Uchijima M.
6-36-1
Anisimova A.[4]
Siniakova K.
6-16-4
Potapova A.
Raducanu E.[28]
7-636-2
Keys M.[9]
Krueger A.
6-17-5
Paolini J.[7]
Frech M.
6-26-3
Wang X.
Ostapenko J.[24]
4-66-46-4
Rybakina E.[5]
Gracheva V.
7-56-2
Pliskova K.
Tjen J.
6-46-4
Baptiste H.
Hunter S.
6-26-1
Putintseva Y.
Jacquemot E.
6-16-2
Selekhmeteva O.
Badosa P.[25]
6-46-4
R128
Siegemund L.
Samsonova L.[18]
0-67-56-4
Hon P.
Stakusic M.
1-66-45-3
Klimovicova L.
Jones F.
6-23-2
Fruhvirtova L.
Sun L.
6-37-5
Jovic I.[29]
Volynets K.
6-26-3
Jacquemot E.
Kostyuk M.[20]
6-747-647-67
Gracheva V.
Golubic V.
6-12-66-1
Gibson T.
Blinkova A.
6-16-3
Frech M.
Erjavec V.
6-16-1
Kudermetova P.
Maristany Zuleta De Reales G.
6-26-3
Bencic B.[10]
Boulter K.
6-07-5
Muchova K.[19]
Cristian J.
6-37-66
Badosa P.[25]
Diyas Z.
6-26-4
Danilovic O.
Williams V.
6-756-36-4
Pliskova K.
Stephens S.
7-676-2
Andreeva M.[8]
Vekic D.
4-66-36-0
Keys M.[9]
Oliynykova O.
7-666-1
Mcnally C.
Sakatsume H.
6-36-1
Noskova L.[13]
Semenistaja D.
6-36-0
Anisimova A.[4]
Waltert S.
6-36-2
Selekhmeteva O.
Seidel E.
6-33-66-0
Swiatek I.[2]
Yuan Y.
7-656-3
Parks A.
Eala A.
0-66-36-2
Ostapenko J.[24]
Sramkova R.
6-46-4
Rybakina E.[5]
Juvan K.
6-46-3
Sonmez Z.
Alexandrova E.[11]
7-54-66-4
Mboko V.[17]
Jones E.
6-46-1
Potapova A.
Lamens S.
3-67-56-2
Inglis M.
Birrell K.
7-666-796-4
Bondar A.
Mandlik E.
6-06-4
Uchijima M.
Sierra S.
6-36-1
Valentova T.
Joint M.[30]
6-46-4
Tomljanovic A.
Starodubtseva Y.
4-67-636-1
Hunter S.
Bouzas Maneiro J.
6-46-4
Bouzkova M.
Zarazua R.
6-27-5
Gauff C.[3]
Rakhimova K.
6-26-3
Wang X.
Kalinina A.
6-36-3
Putintseva Y.
Haddad Maia B.
3-67-56-3
Tjen J.
Fernandez L.[22]
6-27-61
Sabalenka A.[1]
Rakotomanga Rajaonah T.
6-46-1
Mertens E.[21]
Tararudee L.
7-56-1
Ruse E.
Yastremska D.[26]
6-47-5
Tauson C.[14]
Galfi D.
6-36-3
Li A.
Osorio C.
6-46-757-5
Bai Z.
Pavlyuchenkova A.
6-42-67-610
Sakkari M.
Jeanjean L.
6-46-2
Pegula J.[6]
Zakharova A.
6-26-1
Grabher J.
Cocciaretto E.
7-52-66-4
Baptiste H.
Townsend T.
6-36-736-3
Shnaider D.[23]
Krejcikova B.
2-66-36-3
Stearns P.
Kenin S.[27]
6-36-2
Kalinskaya A.[31]
Kartal S.
7-636-1
Preston T.
Zhang S.
6-32-66-3
Krueger A.
Bejlek S.
6-36-3
Marcinko P.
Maria T.
6-37-5
Svitolina E.[12]
Bucsa C.
6-46-1
Osaka N.[16]
Ruzic A.
6-33-66-4
Linette M.
Navarro E.[15]
3-66-36-3
Kessler M.
Arango E.
6-36-2
Siniakova K.
Udvardy P.
6-16-2
Raducanu E.[28]
Sawangkaew M.
6-46-1
Cirstea S.
Lys E.
3-66-46-3
Bartunkova N.
Kasatkina D.
7-670-66-3
Paolini J.[7]
Sasnovich A.
6-16-2