S. Johnson vs Ivana SebestovaEupago Porto Open - Porto Qualifying Round of 16

Eupago Porto Open - Porto · CHALLENGER · Qualifying Round of 16
#459WTA
22 yrs
Last 10 · pre-match
LLWLWWWWWL
2 — 0
Sets
Sunday, 20 September 2026 ·
hard
Centre court · 2nd on
#718WTA
$9kYTD
$72kCAREER
25 yrs
Last 10 · pre-match
LLLWLWLWWW
Johnson S.
6-2 6-2
Sebestova I.
Johnson S.
662
Sebestova I.
220

Samantha Johnson defeated Ivana Sebestova 6-2, 6-2 in the quarterfinals of the Eupago Porto Open in Porto. Johnson hit two aces and one double fault, while converting 75 percent of her break points and winning three service breaks. Sebestova had no aces and two double faults, converting 50 percent of her break points and winning one service break.

Generated automatically from Umpiry match data.

Momentum · Final
Johnson S.6/8
Sebestova I.2/8

hold to 0/15to 30to 40 / deucebroken

Key context

Head to head

No previous meetings on record.

Statistics

This season
1st serve in·Even
62%
60%
1st serve points won·Even
62%
61%
2nd serve points won·Even
40%
40%
Service points won·Even
54%
53%
Return points won·Even
49%
49%
Break points saved·Slight edge
45%
50%
Aces / match·Even
1.5
0.9
Double faults / match·Clear edge
3.5
4.5

Averages over each player's completed matches in the selected window (4 vs 10). ATP, WTA & Challenger.

Win Probability

Pre-match · updated 10:50 UTC
Johnson S.38%
Sebestova I.62%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Slight edge · Sebestova I. narrowly ahead

Calibrated model (out-of-sample validated). Probability is a statistical estimate, not a certainty. How it works.

Umpiry Score

Pre-match
5.8
Slight disadvantageUmpiry ScorePartial · surface data limited
5.7
Slight disadvantageUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0No prior meetings
3.82 of last 5 on hard
Surface form
5.75 of last 10 on hard
0.0
Win streak
0.0
Fatigue & Travel
Surface transition
6.0Clay → Hard
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
Freshness·Slight edge
83
89

Johnson S.: 1 day rest · 2 matches, 30 games (7d) · Sebestova I.: 1 day rest · 1 match, 16 games (7d). Higher means fresher. About

Draw