Alex Rybakov vs Thai Son KwiatkowskiWinston Salem CH Round of 32

Winston Salem CH · CHALLENGER · Round of 32
#428ATP
1352ELO
1310Hard ELO
29 yrs · 185 cm · Left-handed
Last 10 · pre-match
LWLLLWLWLL
2 — 0
Sets
Monday, 8 September 2025
hard
#1589ATP
31 yrs · 188 cm · Right-handed
Last 10 · pre-match
LWLLLLLLLL
Rybakov A.
7-6 6-4
Kwiatkowski T.
Rybakov A.
7762
Kwiatkowski T.
6340

Alex Rybakov defeated Thai Son Kwiatkowski 7-6 6-4 in the Winston Salem CH round of 32 on hard. The result followed the form book — Alex Rybakov came in ranked #428, leading the head-to-head 1–0. Alex Rybakov extended the head-to-head to 2–0.

Key context

Head to head

10
DateTournamentRoundSurfaceWinnerScore
2022-08-01WashingtonQ1hardAlex Rybakov4-6 6-1 6-3

Serve vs return

This season
Rybakov A.serving87% hold

wins 68% of points on serve vs Kwiatkowski T.

Kwiatkowski T.serving76% hold

wins 61% of points on serve vs Rybakov A.

Serve advantage — Rybakov A.

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
65%
60%
1st serve points won·Even
68%
69%
2nd serve points won·Slight edge
50%
44%
Service points won·Even
62%
59%
Return points won·Slight edge
38%
32%
Break points saved·Even
61%
59%
Aces / match·Slight edge
4.3
5.2
Double faults / match·Dominant
3.2
4.7

Averages over each player's completed matches in the selected window (55 vs 6). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Slight edge
15
5
Break points saved·Clear edge
84
65
Break points won·Even
5
6
Deciding sets·Clear edge
19
1
Tiebreaks·Clear edge
5
26

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

Umpiry Score

Pre-match
5.3
Clear underdogUmpiry ScorePartial · surface data limited
  • Extended break: 22 days (−0.3)
4.7
Heavy underdogUmpiry ScorePartial · surface data limited
  • Extended break: 22 days (−0.3)
Form & Matchup
5.0
H2H
5.0
3.9
Surface form
2.0
0.0Lost last 4
Win streak
0.0Lost last 3
Fatigue & Travel
Prev. match
7.0
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·
86

Rybakov A.: 6 days rest · 1 match, 28 games (7d). Higher means fresher. About

Conditions

Court speed
Mediumbalanced pace
SlowFast