Kei Nishikori and Thiago Moura Monteiro will play each other in the 1^st round of the Australian Open for the 2^nd time in their career. They are scheduled to compete on Sunday at 1:00 pm on John Cain Arena. In this post, we analyze their head to head performance and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Kei Nishikori who should win in 4 sets.

As per the initial odds, Kei Nishikori is the pick to win this match.
Kei Nishikori -> 1.27
Thiago Moura Monteiro -> 3.76

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Prediction and head to head Kei Nishikori vs. Thiago Moura Monteiro

This will be the 2^nd time that Kei Nishikori and Thiago Moura Monteiro clash against each other. The head to head is 1-0 for Nishikori (see full H2H stats), but they have never competed against each other on hard.

The last time that they locked horns, Nishikori won 6-4 7-6(3) 6-4 in the 1^st round in at the Wimbledon back in 2019.

Kei Nishikori

Ranked no. 74, Kei will start his run at the Australian Open after he played his last match in Hong Kong where he lost 2-6 6-1 6-3 to Muller in the final on the 5^th of January.

Nishikori has an overall 4-1 win-loss record in 2025, 4-1 on hard (See FULL STATS).

Nishikori’s best result of the season was getting to the final in Hong Kong.

Talking about his overall career, Nishikori has an overall 594-275 record. He has a positive 296-139 record on hard.

Previously at the Australian Open

Previously, his best result was reaching the quarter in 2012, 2015, 2016 and 2019. See his history.

Thiago Moura Monteiro

Ranked no. 106, the Brazilian got to the 1^st round after beating Jason Murray Kubler 7-6(4) 7-6(4), Valentin Royer 7-6(1) 6-3 and Kimmer Coppejans 6-4 6-3.

In the qualifications, Moura Monteiro had a good straight sets win against Coppejans (6-4 6-3). During the match Moura Monteiro scored 55 points vs Coppejans’s 40. Moura Monteiro was very aggressive to blast 27 winners.

Talking about serving, Moura Monteiro scored 6 aces and he was extremely steady in conceding no double faults for the entire match. Thiago Moura Monteiro was very effective on serve to win 90% (27/30) of his 1st serve and 81% (13/16) on the second serve. This was the main reason for not conceding a single break during the match. Thiago broke Coppejans twice after converting 50% of his break points (2/4).

Overall Performance in this tournament

Thiago started his run at this tournament from the qualifications. In the main draw, he hasn’t conceded yet a set in this tournament to conquer 55% of the points he played.

Thiago has an aggregate 3-2 win-loss record in 2025, 3-2 on hard (See FULL STATS).

Tennis Scores – Australian Open

• Tristan BoyerBoyer – Christopher EubanksEubanks (6-4 6-4) – See score progression
• Lukas KleinKlein – Terence AtmaneAtmane (6-4 6-1) – See score progression
• Gauthier OnclinOnclin – Mackenzie McdonaldMcdonald (6-7⁷ 7-6⁵ 6-1) – See score progression
• Cristian GarinGarin – Hugo DellienDellien (6-2 6-3) – See score progression
• Martin LandaluceLandaluce – Dalibor SvrcinaSvrcina (2-6 6-1 7-5) – See score progression
• Learner TienTien – Jozef KovalikKovalik (6-3 6-4) – See score progression
• Matteo GiganteGigante – Henrique RochaRocha (6-4 7-5) – See score progression
• Joao FonsecaFonseca – Thiago Agustin TiranteAgustin Tirante (6-4 6-1) – See score progression
• Mitchell KruegerKrueger – Yasutaka UchiyamaUchiyama (6-3 6-7⁵ 6-4) – See score progression
• Thiago Moura MonteiroMoura Monteiro – Kimmer CoppejansCoppejans (6-4 6-3) – See score progression
• Jaime FariaFaria – Mark LajalLajal (6-4 2-6 6-4) – See score progression
• Kamil MajchrzakMajchrzak – Billy HarrisHarris (7-5 6-2) – See score progression
• Aziz DougazDougaz – Borna GojoGojo (6-4 3-6 6-1) – See score progression
• Hady HabibHabib – Clement ChidekhChidekh (6-4 3-6 7-6⁸) – See score progression
• Dominik KoepferKoepfer – Blake EllisEllis (7-5 7-5) – See score progression
• Nikoloz BasilashviliBasilashvili – Francesco PassaroPassaro (6-3 6-3) – See score progression

Upcoming matches in the draw

• Roberto Bautista AgutBautista Agut – Denis ShapovalovShapovalov (0-3) – H2H and prediction
• Fabio FogniniFognini – Grigor DimitrovDimitrov (2-5) – H2H and prediction
• Gael MonfilsMonfils – (0-0) – H2H and prediction
• Novak DjokovicDjokovic – (0-0) – H2H and prediction
• Adrian MannarinoMannarino – Karen KhachanovKhachanov (1-4) – H2H and prediction
• Kei NishikoriNishikori – Thiago Moura MonteiroMoura Monteiro (1-0) – H2H and prediction
• David GoffinGoffin – Benjamin BonziBonzi (3-0) – H2H and prediction
• James DuckworthDuckworth – (0-0) – H2H and prediction
• Damir DzumhurDzumhur – Aleksandar VukicVukic (0-0) – H2H and prediction
• Jan-Lennard StruffStruff – Felix Auger AliassimeAuger Aliassime (2-2) – H2H and prediction
• Pablo Carreno-BustaCarreno-Busta – Kamil MajchrzakMajchrzak (0-2) – H2H and prediction
• Nikoloz BasilashviliBasilashvili –
  (0-1) – H2H and prediction
• Marcos GironGiron – Yannick HanfmannHanfmann (0-0) – H2H and prediction
• Lucas PouillePouille – Alexander ZverevZverev (0-0) – H2H and prediction
• Thanasi KokkinakisKokkinakis – Roman SafiullinSafiullin (1-0) – H2H and prediction
• Jordan ThompsonThompson – Dominik KoepferKoepfer (3-0) – H2H and prediction
• Yoshihito NishiokaNishioka – Aziz DougazDougaz (0-0) – H2H and prediction
• Botic Van De ZandschulpVan De Zandschulp – Alex De MinaurDe Minaur (0-1) – H2H and prediction
• Christopher O ConnellO Connell – Tommy PaulPaul (1-2) – H2H and prediction
• Borna CoricCoric – Christian GarinGarin (2-1) – H2H and prediction
• Zhizhen ZhangZhang – Holger Vitus Nodskov RuneVitus Nodskov Rune (0-0) – H2H and prediction
• Hubert HurkaczHurkacz – Tallon GriekspoorGriekspoor (2-2) – H2H and prediction
• Sumit NagalNagal – Tomas MachacMachac (0-0) – H2H and prediction
• Pedro Martinez PorteroMartinez Portero – (0-1) – H2H and prediction
• Alexandre MullerMuller – Nuno BorgesBorges (1-1) – H2H and prediction
• Arthur RinderknechRinderknech – Frances TiafoeTiafoe (1-0) – H2H and prediction
• Andrey RublevRublev – (0-0) – H2H and prediction
• Matteo BerrettiniBerrettini – Cameron NorrieNorrie (1-0) – H2H and prediction
• Taylor Harry FritzHarry Fritz – Jenson BrooksbyBrooksby (0-1) – H2H and prediction
• Alejandro TabiloTabilo – Roberto Carballes BaenaCarballes Baena (0-0) – H2H and prediction
• Stefanos TsitsipasTsitsipas – (0-1) – H2H and prediction
• Lorenzo SonegoSonego – Stan WawrinkaWawrinka (0-1) – H2H and prediction
• Casper RuudRuud – Jaume Antoni Munar ClarAntoni Munar Clar (3-1) – H2H and prediction
• Alexei PopyrinPopyrin – Corentin MoutetMoutet (1-3) – H2H and prediction
• Miomir KecmanovicKecmanovic – Dusan LajovicLajovic (0-2) – H2H and prediction
• Hady HabibHabib – Bu YunchaoketeYunchaokete (0-1) – H2H and prediction
• Thiago Seyboth WildSeyboth Wild – Fabian MarozsanMarozsan (0-1) – H2H and prediction
• Lukas KleinKlein – Sebastian KordaKorda (0-0) – H2H and prediction
• Tomas Martin EtcheverryMartin Etcheverry – Flavio CobolliCobolli (3-0) – H2H and prediction
• Ugo HumbertHumbert – (0-0) – H2H and prediction
• Camilo Ugo CarabelliUgo Carabelli – (0-0) – H2H and prediction
• Hugo GastonGaston – Omar JasikaJasika (0-0) – H2H and prediction
• Jannik SinnerSinner – Nicolas JarryJarry (1-1) – H2H and prediction
• Adam WaltonWalton – Quentin HalysHalys (0-0) – H2H and prediction
• Francisco CerundoloCerundolo – Alexander BublikBublik (0-0) – H2H and prediction
• Sebastian BaezBaez – (0-0) – H2H and prediction
• Otto VirtanenVirtanen – (0-1) – H2H and prediction
• Kasidit SamrejSamrej – Daniil MedvedevMedvedev (0-0) – H2H and prediction
• Tristan BoyerBoyer – Federico CoriaCoria (0-0) – H2H and prediction
• Gauthier OnclinOnclin – Reilly OpelkaOpelka (0-0) – H2H and prediction
• Rinky HijikataHijikata – Mitchell KruegerKrueger (1-0) – H2H and prediction
• Jiri LeheckaLehecka – Li TuTu (0-0) – H2H and prediction
• Francisco ComesanaComesana – Daniel AltmaierAltmaier (0-0) – H2H and prediction
• Jack DraperDraper – Mariano NavoneNavone (1-0) – H2H and prediction
• Facundo Diaz AcostaDiaz Acosta – Zizou BergsBergs (0-1) – H2H and prediction
• Alexander ShevchenkoShevchenko – Carlos Alcaraz GarfiaAlcaraz Garfia (0-1) – H2H and prediction
• Tristan SchoolkateSchoolkate – Taro DanielDaniel (1-0) – H2H and prediction
• Jacob FearnleyFearnley – Nick KyrgiosKyrgios (0-0) – H2H and prediction
• Gabriel DialloDiallo – (0-0) – H2H and prediction