Katerina Siniakova vs Peyton Stearns — Japan Open - Osaka Round of 32
Why
Surface+52 Hard Elo edgeSupports Siniakova K.
Overall ratingOverall Elo 1846Supports Siniakova K.
Recent runLost last 2Informative
Head-to-headLeads 1–0 on hardSupports Siniakova K.
This eventDidn't play here last yearBoth players
ELO1 893
Hard ELO1 757
Last 104–6
Age30
Height174 cm
PlaysRight
EarningsCareer $18.2M2026 $3.3M
ELO1 841
Hard ELO1 705
Last 105–5
Age25
Height173 cm
PlaysRight
EarningsCareer $4.5M2026 $1.3M
Katerina Siniakova faces Peyton Stearns in the Japan Open - Osaka round of 32 on hard. Peyton Stearns holds the paper edge — ranked #37. They have met 2 times, the series level at 1–1, Katerina Siniakova ahead 1–0 on hard.
Key context
- Serve & return: Serve-return mismatch: Peyton Stearns grades 38 on serve, Katerina Siniakova 39 on return.
- Head-to-head: The head-to-head is level 1–1, 1–0 on hard. Last met at Cleveland 2024.
- Surface form: Katerina Siniakova 3 of 8, Peyton Stearns 4 of 8 on hard recently — Peyton Stearns the sharper of late.
Common opponents
8 shared · last 12 monthsSiniakova K. and Stearns P. faced 8 of the same opponents in the last 12 months. Siniakova K. went 4–5 (44%) against them, Stearns P. 4–6 (40%). Results against comparable opponents are close (2 : 1 better-results split).
4–544%Siniakova K. · better vs 2Record vs common opponents4–640%Stearns P. · better vs 1
Vs common opponents · derived from scorelines
9–11Sets12–12
82–94Games114–108
0–0Tiebreaks1–1
1–1Deciding sets0–4
vs Anisimova A.#17L1-6 4-6Australian Open · hardL1-6 4-6Australian Open · hard- vs Keys M.#20L1-6 3-6Cincinnati · hardL6-4 4-6 2-6Rome · clay
vs Bartunkova N.#29L2-6 4-6Wimbledon · grassL4-6 6-3 5-7Wimbledon · grass
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vs Samsonova L.#43L1-6 7-5 2-6Wuhan · hardW7-6(7) 6-2Guadalajara Open Akron - Guadalajara · hard
vs Tauson C.#53W6-4 6-1Doha · hardL2-6 4-6Dubai · hard- vs Kalieva E.#112W6-3 6-4Madrid · clayL1-6 6-2 3-6Memphis · hard
- vs Kenin S.#125W1-6 6-4 6-1Indian Wells · hardW6-3 6-2Australian Open · hard
vs Boisson L.#258W6-2 6-3Rome · clayW6-1 6-3Madrid · clay
Head-to-head
2 meetings · level 1–111
Hard: Siniakova K. leads 1–0 · Clay: Stearns P. leads 1–0
- Siniakova K.August 2024ClevelandHard1-6 6-3 6-4
- Stearns P.May 2023Roland GarrosClay7-6 6-2
Evidence
Siniakova K.Stearns P.
FormLast 10 matches each · 2026
Win–loss4–65–5 (ahead)
Season win rate46% (17–20)52% (25–23) (ahead)
RatingUmpiry ELO
Overall ELO1893 (ahead)1841
Hard-court ELO1757 (ahead)1705
Serve vs returnLast 36 vs 47 matches
1st-serve points won63%66% (ahead)
Return points won43%43%
Aces / match1.84.1 (ahead)
ClutchLast 36 vs 47 matches
Break points saved59% (ahead)54%
Draw
Odds
Cite this
Umpiry, "Katerina Siniakova vs Peyton Stearns — Japan Open - Osaka Round of 32", https://umpiry.com/match/2026-10-19/siniakova-vs-stearns-japan-open-osaka-r32?utm_source=cite (as of 19 October 2026).