Omar Jasika vs Yunseong Chung | Seoul Quarter-final

UMPIRY

SeoulQuarter-finalHardFri 30 Oct · ~12:30CENTRE COURT · After 1 match

Omar JasikaATP #386 · AUS53%

VSToss-up

Yunseong ChungATP #756 · KOR47%

Win probabilityWho is more likely to winToss-up

53%47%

No meaningful edge. Serve performance in the first set is the likeliest tiebreaker.

Umpiry ScoreMatchup strength, 0–10 · not a probability

Jasika O.6.4/10

Marginal edgeBased on 5/6 signal groups5/6

Chung Y.5.8/10

Slight disadvantageBased on 5/6 signal groups5/6

Why

Surface form7 of last 10 on hardSupports Jasika O.

Head-to-headLeads 1–0 on hardSupports Jasika O.

Long matches1 three-setter in 14 daysSupports Jasika O.

Recent run4-match win streakBoth players

This eventDidn't play here last yearBoth players

ELO1 694

Hard ELO1 663

Last 107–3

Age29

Height183 cm

PlaysLeft

ELO1 697

Hard ELO1 660

Last 108–2

Age28

Height178 cm

PlaysRight

Omar Jasika faces Yunseong Chung in the Seoul quarter-final on hard. Omar Jasika holds the paper edge — ranked #386, leading the head-to-head 1–0. Recent hard form is closely matched.

Key context

Last match: Omar Jasika dropped just 4 games past Lloyd Harris.
Last match: Yunseong Chung edged Bu Yunchaokete in two tight sets (7–5 6–4).
Head-to-head: Omar Jasika leads the head-to-head 1–0. Last met at M15 Tianjin 2 2026.

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

1 meeting · Jasika O. leads 1–0

Jasika O.August 2026M15 Tianjin 2Hard2-6 2-6

Evidence

Jasika O.Chung Y.

FormLast 10 matches each · 2026

Win–loss7–38–2

Season win rate60% (41–27)68% (19–9)

RatingUmpiry ELO

Overall ELO16941697

Hard-court ELO16631660

Serve vs returnLast 52 vs 25 matches

1st-serve points won67%71%

Return points won39%40%

Aces / match1.56.1

ClutchLast 52 vs 25 matches

Break points saved61%55%

When it starts

CENTRE COURT · After 1 match · Followed by

1Shimabukuro S. v Wong C.Starts at 11:00 AM
2This match: Jasika O. v Chung Y.This match
3Atmane T. v Hong S.Followed by

Draw

Odds

Conditions

CENTRE COURT · ~12:30 local

SurfaceHard · medium-slow

Forecast17°C · Clear

Wind5 km/h

Humidity66%

Court pace medium-slow: favours grinders.

Freshness

Last 7 & 14 days

Jasika O.Chung Y.

1Days since last match1

4Matches · 7 days4

65Games · 7 days91

6Matches · 14 days4

105Games · 14 days91

Green marks the fresher player.

Cite this

Umpiry, "Omar Jasika vs Yunseong Chung — Seoul Quarter-final", https://umpiry.com/match/2026-10-30/chung-vs-jasika-seoul-qf?utm_source=cite (as of 30 October 2026).