Stefan Kozlov vs Ryan Harrison — Cleveland CH Round of 16

Cleveland CH · CHALLENGER · Round of 16
Stefan Kozlov
USA6
Stefan Kozlov
#296ATP
1429ELO
1408Hard ELO
28 yrs · 183 cm · Right-handed
Last 10 · pre-match
LWWWLLWWLW
2 — 0
Sets
Monday, 30 January 2023
hard
USA
Ryan Harrison
34 yrs · 185 cm · Right-handed
Last 10 · pre-match
LWLLLWLLLW
Kozlov S.
6-4 6-4
Harrison R.
Kozlov S.
662
Harrison R.
440

Stefan Kozlov defeated Ryan Harrison 6-4 6-4 in the Cleveland CH round of 16 on hard.

Key context

  • Match story: Stefan Kozlov edged a tight contest from start to finish — 6–4 6–4.

Head to head

No previous meetings on record.

Serve vs return

This season
Kozlov S.serving74% hold

wins 60% of points on serve vs Harrison R.

Harrison R.serving72% hold

wins 59% of points on serve vs Kozlov S.

Even serve battle

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
Kozlov S.Harrison R.
1st serve in·Slight edge
64%
58%
1st serve points won·Slight edge
66%
72%
2nd serve points won·Even
48%
52%
Service points won·Even
59%
63%
Return points won·Slight edge
43%
38%
Break points saved·Even
59%
58%
Aces / match·Dominant
2.3
5.5
Double faults / match·Slight edge
3.7
3.0

Averages over each player's completed matches in the selected window (138 vs 12). ATP, WTA & Challenger.

Clutch

Under pressure
Kozlov S.Harrison R.
Clutch Rating·Slight edge
36
46
Break points saved·Dominant
49
93
Break points won·Even
20
16
Deciding sets·Clear edge
85
65
Tiebreaks·Slight edge
30
41

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

Umpiry Score

Pre-match
Kozlov S.
4.2
Heavy underdogUmpiry ScorePartial · surface data limited
  • Recent retirement (−1.5)
Harrison R.
4.3
Heavy underdogUmpiry ScorePartial · surface data limited
  • Injury return: 126 days (−1.5)
Form & Matchup
5.0No prior meetings
H2H
5.0
3.3
Surface form
5.2
0.0Lost last 3
Win streak
0.0Lost last 2
Fatigue & Travel
7.4
Minutes 14d
8.0
Prev. match
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
Kozlov S.Harrison R.
Freshness·
64
—

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

Conditions

Court speed
Fastbig serves, short points
SlowFast
Final
Kovacevic A.[5]
Wu Y.[2]
3-67-57-62
Semi-finals
Wu Y.[2]
Sandgren T.
6-36-2
Kovacevic A.[5]
Gomez E.[1]
6-756-46-3
Quarter-finals
Sandgren T.
Svajda Z.
6-02-67-61
Wu Y.[2]
Kozlov S.[6]
6-46-1
Gomez E.[1]
Diallo G.
7-654-67-5
Kovacevic A.[5]
Johnson S.[3]
6-757-56-4
R16
Wu Y.[2]
Kirchheimer S.
7-697-61
Kozlov S.[6]
Harrison R.
6-46-4
Kovacevic A.[5]
Marchenko I.
7-56-3
Svajda Z.
Michelsen A.
7-56-3
Sandgren T.
Holt B.[7]
6-34-66-2
Johnson S.[3]
Seelig K.
7-696-2
Diallo G.
Krueger M.
6-766-16-1
Gomez E.[1]
Pinnington Jones J.
6-23-66-2
R32
Marchenko I.
Kodat T.
7-55-76-3
Pinnington Jones J.
Escobedo E.
6-23-1
Harrison R.
Angele J.
6-26-1
Kovacevic A.[5]
Rybakov A.
7-676-776-2
Johnson S.[3]
Forejtek J.
6-47-62
Krueger M.
Chappell N.
6-37-64
Gomez E.[1]
Clark E.
7-56-2
Michelsen A.
Sock J.[4]
7-636-4
Kozlov S.[6]
Kypson P.
6-47-68
Seelig K.
Smith K.
2-66-46-4
Wu Y.[2]
Mayo A.
6-10-66-4
Kirchheimer S.
Zhu E.
6-27-5
Svajda Z.
Pecotic M.
6-16-2
Sandgren T.
Ejupovic E.
6-26-747-64
Holt B.[7]
Perez A.
6-46-2
Diallo G.
Ayeni O.
6-16-1
Marchenko I.
Kodat T.
7-55-76-3