Yuki Naito vs Kallista Liu | W50 Quebec City Round of 16

UMPIRY

W50 Quebec CityR16HardThu 15 Oct · 12:30

Yuki NaitoWTA #290 · JPN86%

VSStrong favourite · Naito Y.

Kallista LiuWTA #805 · USA14%

Win probabilityWho is more likely to winStrong favourite · Naito Y.

86%14%

Clear edge for Naito Y. across form, surface and matchup. Upsets at this level happen in about 1 in 7 such matches.

Umpiry ScoreMatchup strength, 0–10 · not a probability

Naito Y.3.7/10

Heavy underdogBased on 5/6 signal groups5/6

Liu K.4.5/10

Heavy underdogBased on 5/6 signal groups5/6

Why

Surface form2 of last 10 on hardInformative

Recent runLost last 6Informative

Head-to-headNo prior meetingsBoth players

This eventDidn't play here last yearBoth players

ELO1 642

Hard ELO1 557

Last 105–5

Age25

ELO1 511

Hard ELO1 517

Last 109–1

Age22

Yuki Naito faces Kallista Liu in the W50 Quebec City round of 16 on hard. Yuki Naito is the paper favourite — ranked #290 — but Kallista Liu arrives in form, winning 9 of their last 10 on hard to Yuki Naito's 5 of 10.

Key context

Form trend: Kallista Liu's form has been trending up over recent weeks, while Yuki Naito's has cooled.
Last match: Yuki Naito dropped the opening set before beating Valentina Ryser 6–7 6–0 6–2.
Last match: Kallista Liu dropped just 5 games past Michika Ozeki.

Common opponents

0 shared · last 12 months

No common opponents in the last 12 months. Surface form and ELO carry more weight here.

Head-to-head

They have not met before.

Evidence

Naito Y.Liu K.

FormLast 10 matches each · 2026

Win–loss5–59–1

Season win rate64% (25–14)63% (15–9)

RatingUmpiry ELO

Overall ELO16421511

Hard-court ELO15571517

Serve vs returnLast 38 vs 16 matches

1st-serve points won65%53%

Return points won47%49%

Aces / match3.20.5

ClutchLast 38 vs 16 matches

Break points saved53%51%

Draw

Odds

Conditions

12:30 local

SurfaceHard

Forecast8°C · Clear

Wind20 km/h

Humidity66%

Cite this

Umpiry, "Yuki Naito vs Kallista Liu — W50 Quebec City Round of 16", https://umpiry.com/match/2026-10-15/liu-vs-naito-w50-quebec-city-r16?utm_source=cite (as of 15 October 2026).