Thai Son Kwiatkowski vs Stefan KozlovLittle Rock CH Round of 32

Little Rock CH · CHALLENGER · Round of 32
#1589ATP
31 yrs · 188 cm · Right-handed
Last 10 · pre-match
LWLLLLLLLL
2 — 0
Sets
Monday, 31 May 2021
hard
#296ATP
1429ELO
1408Hard ELO
28 yrs · 183 cm · Right-handed
Last 10 · pre-match
LWWWLLWWLW
Kwiatkowski T.
6-2 6-1
Kozlov S.
Kwiatkowski T.
662
Kozlov S.
210

Thai Son Kwiatkowski defeated Stefan Kozlov 6-2 6-1 in the Little Rock CH round of 32 on hard. The upset overturned the form book — Stefan Kozlov came in ranked #296, leading the head-to-head 1–0. Thai Son Kwiatkowski claimed a first win over Stefan Kozlov in two meetings, narrowing the head-to-head to 1–1.

Key context

Head to head

01
DateTournamentRoundSurfaceWinnerScore
2023-02-06DallasQ1hardStefan Kozlov6-3 6-4

Serve vs return

This season
Kwiatkowski T.serving72% hold

wins 59% of points on serve vs Kozlov S.

Kozlov S.serving76% hold

wins 61% of points on serve vs Kwiatkowski T.

Serve advantage — Kozlov S.

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
59%
64%
1st serve points won·Slight edge
72%
66%
2nd serve points won·Even
49%
47%
Service points won·Even
62%
59%
Return points won·Slight edge
37%
42%
Break points saved·Even
59%
58%
Aces / match·Dominant
6.3
2.4
Double faults / match·Even
3.8
4.0

Averages over each player's completed matches in the selected window (126 vs 199). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
5
36
Break points saved·Clear edge
65
49
Break points won·Clear edge
6
20
Deciding sets·Dominant
1
85
Tiebreaks·Even
26
30

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

Umpiry Score

Pre-match
5.9
Even matchUmpiry ScorePartial · surface data limited
4.9
Heavy underdogUmpiry ScorePartial · surface data limited
  • Extended break: 77 days (−1.2)
Form & Matchup
5.0
H2H
5.0
2.8
Surface form
6.6
Win streak
7.03-match win streak
Fatigue & Travel
6.3
Minutes 14d
7.0
3-set count
8.0
Prev. match
6.0
Surface transition
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·
69

Kozlov S.: 4 days rest · 3 matches, 72 games (7d). Higher means fresher. About

Conditions

Court speed
Mediumbalanced pace
SlowFast