Harriet Dart vs Himeno SakatsumeW100 Tokyo Round of 16

W100 Tokyo · CHALLENGER · Round of 16
#152WTA
1597ELO
1580Hard ELO
29 yrs · 175 cm · Right-handed
Last 10 · pre-match
LLLLWLLLWL
2 — 1
Sets
Monday, 20 April 2026
hard
#123WTA
1611ELO
1599Hard ELO
24 yrs · Right-handed
Last 10 · pre-match
LLWWLLLLWW
Dart H.
3-6 6-0 6-3
Sakatsume H.
Dart H.
3662
Sakatsume H.
6031

Harriet Dart defeated Himeno Sakatsume 3-6 6-0 6-3 in the W100 Tokyo round of 16 on hard. The upset overturned the form book — Himeno Sakatsume came in ranked #123, but Harriet Dart had arrived on a 3-match winning run.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Dart H.serving62% hold

wins 55% of points on serve vs Sakatsume H.

Sakatsume H.serving53% hold

wins 51% of points on serve vs Dart H.

Baseline battle — serve is shaky, expect plenty of breaks

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
1st serve in·Slight edge
55%
66%
1st serve points won·Even
66%
64%
2nd serve points won·Even
48%
47%
Service points won·Even
58%
58%
Return points won·Even
47%
43%
Break points saved·Slight edge
50%
55%
Aces / match·Slight edge
1.6
2.3
Double faults / match·Clear edge
3.0
1.7

Averages over each player's completed matches in the selected window (27 vs 29). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Slight edge
54
62
Break points saved·Dominant
37
64
Break points won·Slight edge
87
97
Deciding sets·Clear edge
83
62
Tiebreaks·
69

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

Umpiry Score

Pre-match
6.3
Marginal edgeUmpiry Score
5.8
Slight disadvantageUmpiry Score
Form & Matchup
4.7Hard Elo 1580
Surface ELO
5.3+18 Hard Elo edge
4.7Overall Elo 1597
ELO gap
5.3Overall Elo 1611
5.0No prior meetings
H2H
5.0
6.7
Surface form
4.0
7.03-match win streak
Win streak
0.0
Fatigue & Travel
7.0
3-set count
Context
5.0
Defending pts
5.0

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
Freshness·Even
97
100

Dart H.: 13 days rest · 1 match (14d) · Sakatsume H.: 19 days rest. Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast