Daisuke Sumizawa vs Kosuke OguraGuangzhou Qualifying Round of 32

Guangzhou · CHALLENGER · Qualifying Round of 32
#1307ATP
27 yrs · 175 cm · Right-handed
Last 10
LWLWLWLLLL
Sets
Sunday, 13 September 2026 ·
hard
Court 4 · 2nd on
#821ATP
$8kYTD
$69kCAREER
30 yrs · 170 cm · Right-handed
Last 10
LWLLLWWWWL
Sumizawa D.
vs
Ogura K.

Daisuke Sumizawa faces Kosuke Ogura in the Guangzhou qualifying round of 32 on hard. Kosuke Ogura holds the paper edge — ranked #821. They have met 2 times, the series level at 1–1.

Win Probability

Pre-match · updated 15:50 UTC
Sumizawa D.61%
Ogura K.39%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Slight edge · Sumizawa D. narrowly ahead

Calibrated model · 63% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.

Key context

  • Head-to-head: The head-to-head is level 1–1. Last met at M15 Osaka 2 2025.
  • Surface form: Daisuke Sumizawa 3 of 10, Kosuke Ogura 5 of 10 on hard recently — Kosuke Ogura the sharper of late.
  • Fatigue load: Kosuke Ogura carries the heavier recent load — 1 three-setter to 0 in the past fortnight.

Common opponents

Last 12 months
No common opponents in the last 12 months.
Includes tour-level, 125s, qualifying and team events (⚑). Walkovers excluded. Describes past results in different contexts — not a prediction.

Umpiry Score

Pre-match
4.9
Heavy underdogUmpiry ScorePartial · surface data limited
5.5
Slight disadvantageUmpiry ScorePartial · surface data limited
Form & Matchup
7.0Leads 1–0 on hard
H2H
3.0Trails 0–1 on hard
1.32 of last 10 on hard
Surface form
4.44 of last 10 on hard
0.0Lost last 8
Win streak
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.

2 vs 7 matches

Statistics

This season
1st serve in·Clear edge
47%
63%
1st serve points won·Even
67%
66%
2nd serve points won·Slight edge
48%
58%
Service points won·Slight edge
57%
63%
Return points won·Slight edge
26%
35%
Break points saved·Slight edge
63%
54%
Aces / match·Even
2.0
2.1
Double faults / match·Even
2.5
2.3

Averages over each player's completed matches in the selected window (2 vs 7). ATP, WTA & Challenger.

Serve vs return

This season
Sumizawa D.serving80% hold

wins 63% of points on serve vs Ogura K.

Ogura K.serving89% hold

wins 69% of points on serve vs Sumizawa D.

Serve advantage — Ogura K.

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

When it starts

2nd on Court 4 · Followed By · 1 match still to finish ahead

  1. 1Trongcharoenchaikul W. v Flores J.
  2. 2Sumizawa D. v Ogura K.This match
  3. 3Zhukov M. v Loof T.

Conditions

Court speed
Fastbig serves, short points
SlowFast
Weather forecast
26°CDrizzle
Wind 6 km/hHumidity 91%

Head to head

11
DateTournamentRoundSurfaceWinnerScore
2025-04-23M15 Osaka 2R32hardDaisuke Sumizawa6-1 5-7 7-6(9)
2021-09-30M15 Monastir 37R16hardKosuke Ogura6-2 3-6 6-2

Draw