Rei Sakamoto vs Frances TiafoeUS Open Round of 64

US Open · ATP · Round of 64
#157ATP
1608ELO
1589Hard ELO
20 yrs · 193 cm · Right-handed
Last 10
WWWWWLWLWW
Sets
Thursday, 3 September 2026 ·
hard
Louis Armstrong Stadium · 4th on
#12ATP
1918ELO
1861Hard ELO
28 yrs · 188 cm · Right-handed
Last 10
WLWWWWWLWL
Sakamoto R.
vs
Tiafoe F.

Rei Sakamoto faces Frances Tiafoe in the US Open round of 64 on hard. Frances Tiafoe is the paper favourite — ranked #12, defending last year's round of 32, a roughly 270-point hard Elo advantage — but Rei Sakamoto rides a 5-match win streak. Recent hard form is closely matched.

Around the match

  • I think Frances, if he is playing to the level he was in Cincinnati, he was playing really well.

    Tiafoe F.Tennishead

Quotes belong to their sources, linked above.

Win Probability

Pre-match · updated 14:50 UTC
Sakamoto R.25%
Tiafoe F.75%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Clear favourite · Tiafoe F. 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.

Key context

  • Under pressure: Frances Tiafoe has the edge on pressure points (Clutch Rating 75 vs Rei Sakamoto's 49).
  • Fatigue load: Rei Sakamoto carries the heavier recent load — 3 three-setters to 2 in the past fortnight.
  • Win streak: Rei Sakamoto arrives on a 5-match winning run.

Common opponents

Last 12 months
2 common opponents · Sakamoto R. 0–2 · Tiafoe F. 1–1 · small sample
Tiafoe F. better · different surfaces (Grass × Clay)
Includes tour-level, 125s, qualifying and team events (⚑). Walkovers excluded. Describes past results in different contexts — not a prediction.

Umpiry Score

Pre-match
5.6
Slight disadvantageUmpiry Score
7.9
Dominant favouriteUmpiry Score
Form & Matchup
1.6Hard Elo 1589
Surface ELO
8.4+272 Hard Elo edge
1.1Overall Elo 1608
ELO gap
8.9Overall Elo 1918
5.0No prior meetings
H2H
5.0No prior meetings
8.48 of last 10 on hard
Surface form
7.37 of last 10 on hard
9.05-match win streak
Win streak
Fatigue & Travel
0.03 three-setters in 14 days
3-set count
4.02 three-setters in 14 days
Context
5.0Didn't play here last year
Defending pts
6.0Reached the R32 here last year
Opponent rise
5.0Opponent hot: 8 of last 10

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.

34 vs 43 matches

Statistics

This season
1st serve in·Even
62%
61%
1st serve points won·Even
73%
75%
2nd serve points won·Even
53%
54%
Service points won·Even
65%
67%
Return points won·Even
38%
35%
Break points saved·Slight edge
60%
68%
Aces / match·Even
6.5
7.0
Double faults / match·Even
2.0
2.1

Averages over each player's completed matches in the selected window (34 vs 43). ATP, WTA & Challenger.

Serve vs return

This season
Sakamoto R.serving89% hold

wins 69% of points on serve vs Tiafoe F.

Tiafoe F.serving88% hold

wins 68% of points on serve vs Sakamoto R.

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

Clutch

Under pressure
Clutch Rating·Dominant
49
75
Break points saved·Slight edge
87
97
Break points won·Dominant
8
45
Deciding sets·Slight edge
93
87
Tiebreaks·Dominant
23
98

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

Freshness

Recent load
Freshness·Even
57
57

Sakamoto R.: 3 days rest · 3 matches, 93 games (7d) · Tiafoe F.: 1 day rest · 1 match, 48 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-fastrewards aggression
SlowFast
Weather forecast
21°CPartly cloudy
Wind 6 km/hHumidity 91%

Head to head

No previous meetings on record.

Draw