Kuan Yi Lee vs Seiya Nakanishi — M25 Sapporo Round of 16

M25 Sapporo · ITF · Round of 16
TPE6
Kuan Yi Lee
#616ATP
30 yrs · 178 cm · Right-handed
Last 10 · pre-match
LWLWWWLLWL
2 — 0
Sets
Thursday, 10 September 2026 ·
hard
JPNLL
Seiya Nakanishi
#2011ATP
30 yrs · 188 cm · Right-handed
Last 10 · pre-match
WLWLWWLWWW
Yi Lee K.
6-0 6-3
Nakanishi S.
Yi Lee K.
662
Nakanishi S.
030

Kuan Yi Lee defeated Seiya Nakanishi 6-0, 6-3 in the Round of 16 at the M25 Sapporo tournament. Lee converted 50% of his break points and secured three service breaks en route to the win. Lee served one ace and did not commit a double fault in the match.

Generated automatically from Umpiry match data.

Key context

Head to head

No previous meetings on record.

Statistics

This season
Yi Lee K.Nakanishi S.
1st serve in·
61%
—
1st serve points won·
66%
—
2nd serve points won·
49%
—
Service points won·
59%
—
Return points won·
40%
—
Break points saved·
62%
—
Aces / match·
5.5
—
Double faults / match·
4.0
—

Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.

Win Probability

Pre-match · updated 02:50 UTC
Yi Lee K.84%
Nakanishi S.16%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Strong favourite · Yi Lee K. heavily favoured

Calibrated model (out-of-sample validated). Probability is a statistical estimate, not a certainty. How it works.

Umpiry Score

Pre-match
Yi Lee K.
4.1
Heavy underdogUmpiry ScorePartial · surface data limited
  • Back-to-back day (−0.5)
Nakanishi S.
5.3
Clear underdogUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0No prior meetings
3.44 of last 10 on hard
Surface form
0.0Lost last 3
Win streak
0.0
Context
5.0Didn't play here last year
Defending pts
5.0Didn't play here last year

The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.

Conditions

Weather
21°CMainly clear
Wind 1 km/hHumidity 53%

Draw