Yasutaka Uchiyama vs Kaichi Uchida — Zhangjiagang CH Quarter-final

Zhangjiagang CH · CHALLENGER · Quarter-final
Yasutaka Uchiyama
JPN5
Yasutaka Uchiyama
#336ATP
1463ELO
1431Hard ELO
33 yrs · 183 cm · Right-handed
Last 10 · pre-match
LLLLLLLWWW
2 — 0
Sets
Monday, 25 August 2025
hard
Kaichi Uchida
JPN
Kaichi Uchida
#259ATP
1355ELO
1331Hard ELO
31 yrs · 180 cm · Right-handed
Last 10 · pre-match
LLLLLLLLLL
Uchiyama Y.
6-3 6-4
Uchida K.
Uchiyama Y.
662
Uchida K.
340

Yasutaka Uchiyama defeated Kaichi Uchida 6-3 6-4 in the Zhangjiagang CH quarter-final on hard. The upset overturned the form book — Kaichi Uchida came in ranked #259, defending last year's round of 32.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Uchiyama Y.serving89% hold

wins 69% of points on serve vs Uchida K.

Uchida K.serving88% hold

wins 68% of points on serve vs Uchiyama Y.

Serve-dominated — both hold easily, expect tiebreaks

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Statistics

This season
Uchiyama Y.Uchida K.
1st serve in·Even
59%
58%
1st serve points won·Even
74%
74%
2nd serve points won·Even
50%
49%
Service points won·Even
64%
64%
Return points won·Even
35%
34%
Break points saved·Even
62%
61%
Aces / match·Slight edge
7.2
6.5
Double faults / match·Even
2.5
2.6

Averages over each player's completed matches in the selected window (72 vs 52). ATP, WTA & Challenger.

Clutch

Under pressure
Uchiyama Y.Uchida K.
Clutch Rating·Clear edge
30
8
Break points saved·Clear edge
91
73
Break points won·Even
2
2
Deciding sets·Dominant
45
3
Tiebreaks·Slight edge
23
29

Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About

Umpiry Score

Pre-match
Uchiyama Y.
5.5
Slight disadvantageUmpiry Score
  • Extended break: 29 days (−0.3)
Uchida K.
3.8
Heavy underdogUmpiry Score
  • Extended break: 70 days (−1.2)
Form & Matchup
6.4+99 Hard Elo edge
Surface ELO
3.6Hard Elo 1331
6.4Overall Elo 1463
ELO gap
3.6Overall Elo 1355
5.4No prior meetings
H2H
4.6
2.5
Surface form
4.5
0.0Lost last 4
Win streak
0.0Lost last 2
Fatigue & Travel
9.0
Prev. match
Surface transition
6.0
Context
Defending pts
6.0

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.

Freshness

Recent load
Uchiyama Y.Uchida K.
Freshness·
—
92

Uchida K.: 5 days rest · 1 match, 19 games (7d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast
Final
Shimabukuro S.[3]
Crawford O.[6]
6-33-67-5
Semi-finals
Shimabukuro S.[3]
Uchiyama Y.[5]
6-37-65
Crawford O.[6]
Isomura K.
7-616-0
Quarter-finals
Uchiyama Y.[5]
Uchida K.
6-36-4
Isomura K.
Sin S.
2-66-26-4
Shimabukuro S.[3]
Simakin I.[7]
6-46-3
Crawford O.[6]
Tokuda R.
7-613-66-2
R16
Crawford O.[6]
Moriya H.
6-34-66-4
Tokuda R.
Sekulic P.
6-46-4
Sin S.
Sun F.[4]
6-36-1
Isomura K.
Cui J.
3-66-27-69
Uchiyama Y.[5]
Huang T.
6-26-4
Shimabukuro S.[3]
Peliwo F.
6-36-4
Uchida K.
Noguchi R.[2]
6-17-64
Simakin I.[7]
Charlton J.
6-46-4
R32
Sekulic P.
Tomic B.[1]
6-11-67-66
Charlton J.
Te R.
6-46-776-4
Tokuda R.
Binda A.
5-76-36-3
Moriya H.
Yevseyev D.
6-24-66-4
Isomura K.
Fomin S.
6-36-2
Simakin I.[7]
Wu T.
6-47-61
Peliwo F.
Bar Biryukov P.
6-16-2
Uchiyama Y.[5]
Kikuchi Y.
6-25-76-1
Uchida K.
Castelnuovo L.
7-646-3
Noguchi R.[2]
Xiao L.
7-666-1
Sun F.[4]
Mo Y.
3-66-36-4
Crawford O.[6]
Imamura M.
6-36-2
Sin S.
Shin W.
7-57-64
Cui J.
Gea A.[8]
5-77-646-0
Shimabukuro S.[3]
Watt J.
6-43-66-2
Huang T.
Uesugi K.
6-16-743-2