Zhizhen Zhang vs Rei Sakamoto — US Open Qualifying Round of 128

US Open · ATP · Qualifying Round of 128
Zhizhen Zhang
CHN
Zhizhen Zhang
#154ATP
1682ELO
1642Hard ELO
$546kYTD
$4.6MCAREER
29 yrs · 193 cm · Right-handed
Last 10 · pre-match
LLWLLLWWWW
—
Sets
Walkover
Tuesday, 25 August 2026 ·
hard
JPN
Rei Sakamoto
#157ATP
1608ELO
1589Hard ELO
$235kYTD
$494kCAREER
20 yrs · 193 cm · Right-handed
Last 10 · pre-match
WWWLWLWWLW
Zhang Z.
vs
Sakamoto R.

Rei Sakamoto advanced to the next round of the US Open qualifying with a walkover against Zhizhen Zhang. Zhang withdrew before their scheduled Q128 match, handing Sakamoto a win without play.

Head to head

No previous meetings on record.

Statistics

This season
Zhang Z.Sakamoto R.
1st serve in·Even
64%
62%
1st serve points won·Even
73%
73%
2nd serve points won·Even
50%
53%
Service points won·Even
65%
65%
Return points won·Slight edge
33%
38%
Break points saved·Even
62%
60%
Aces / match·Clear edge
8.3
6.5
Double faults / match·Slight edge
1.6
2.0

Averages over each player's completed matches in the selected window (28 vs 34). ATP, WTA & Challenger.

Clutch

Under pressure
Zhang Z.Sakamoto R.
Clutch Rating·Even
46
49
Break points saved·Even
89
87
Break points won·Clear edge
26
8
Deciding sets·Slight edge
88
93
Tiebreaks·Clear edge
6
23

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

Win Probability

Pre-match · updated 23:50 UTC
Zhang Z.31%
Sakamoto R.69%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Clear favourite · Sakamoto R. clearly ahead, but no certainty

Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.

Umpiry Score

Pre-match
Zhang Z.
5.6
Slight disadvantageUmpiry Score
Sakamoto R.
5.9
Even matchUmpiry Score
Form & Matchup
5.7+52 Hard Elo edge
Surface ELO
4.3Hard Elo 1589
5.9Overall Elo 1682
ELO gap
4.1Overall Elo 1608
7.0Leads 1–0 on hard
H2H
3.0Trails 0–1 on hard
2.53 of last 10 on hard
Surface form
5.76 of last 10 on hard
0.0Lost last 2
Win streak
0.0
Fatigue & Travel
3-set count
4.02 three-setters in 14 days
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.

Freshness

Recent load
Zhang Z.Sakamoto R.
Freshness·
—
61

Sakamoto R.: 1 day rest · 3 matches, 70 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-fastrewards aggression
SlowFast
Weather
23°CClear
Wind 11 km/hHumidity 45%

Draw