UMPIRY
EN

Hikaru Hieda vs N. Koizumi — M15 Yanagawa City Round of 32

M15 Yanagawa CityR32HardWed 28 Oct · 10:00
Hikaru HiedaJPN18%
VSStrong favourite · Koizumi N.
N. Koizumi(7)JPN82%
Win probabilityWho is more likely to winStrong favourite · Koizumi N.
18%82%

Clear edge for Koizumi N. across form, surface and matchup. Upsets at this level happen in about 1 in 6 such matches.

Umpiry ScoreMatchup strength, 0–10 · not a probability
Hieda H.6.0/10
Even matchBased on 5/6 signal groups5/6
Koizumi N.5.7/10
Slight disadvantageBased on 5/6 signal groups5/6
What we know
Head-to-headNo prior meetingsBoth players
This eventDidn't play here last yearBoth players
ELO1 496
Hard ELO1 496
Last 100–1
Age18
ELO1 524
Hard ELO1 515
Last 105–5
Age23

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

Hieda H.Koizumi N.
FormLast 1 vs 10 matches
Win–loss0–15–5 (ahead)
RatingUmpiry ELO
Overall ELO14961524 (ahead)
Hard-court ELO14961515 (ahead)

Draw

Odds

Conditions

10:00 local
SurfaceHard
Forecast17°C · Clear
Wind9 km/h
Humidity58%

Cite this

Umpiry, "Hikaru Hieda vs N. Koizumi — M15 Yanagawa City Round of 32", https://umpiry.com/match/2026-10-28/hieda-vs-koizumi-m15-yanagawa-city-r32?utm_source=cite (as of 28 October 2026).