Yibing Wu vs Stefan Kozlov — Cleveland CH Quarter-final

Cleveland CH · CHALLENGER · Quarter-final
Yibing Wu
CHN2
Yibing Wu
#106ATP
1743ELO
1741Hard ELO
$472kYTD
$1.9MCAREER
26 yrs · 183 cm · Right-handed
Last 10 · pre-match
WWLLLLWLLW
2 — 0
Sets
Monday, 30 January 2023
hard
Stefan Kozlov
USA6
Stefan Kozlov
#296ATP
1429ELO
1408Hard ELO
28 yrs · 183 cm · Right-handed
Last 10 · pre-match
LWWWLLWWLW
Wu Y.
6-4 6-1
Kozlov S.
Wu Y.
662
Kozlov S.
410

Yibing Wu defeated Stefan Kozlov 6-4 6-1 in the Cleveland CH quarter-final on hard. The result followed the form book — Yibing Wu came in ranked #106.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Wu Y.serving72% hold

wins 59% of points on serve vs Kozlov S.

Kozlov S.serving72% hold

wins 59% of points on serve vs Wu Y.

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

Serve & return on hard

Wu Y.Kozlov S.
27
Serve
—
26
Return
—

Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About

Statistics

This season
Wu Y.Kozlov S.
1st serve in·Even
62%
64%
1st serve points won·Even
70%
66%
2nd serve points won·Slight edge
53%
48%
Service points won·Even
63%
59%
Return points won·Even
39%
43%
Break points saved·Even
60%
59%
Aces / match·Clear edge
4.1
2.3
Double faults / match·Clear edge
2.3
3.7

Averages over each player's completed matches in the selected window (110 vs 138). ATP, WTA & Challenger.

Clutch

Under pressure
Wu Y.Kozlov S.
Clutch Rating·Dominant
82
36
Break points saved·Dominant
94
49
Break points won·Dominant
57
20
Deciding sets·Clear edge
97
85
Tiebreaks·Dominant
97
30

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

Umpiry Score

Pre-match
Wu Y.
7.3
Strong advantageUmpiry Score
Kozlov S.
3.0
Heavy underdogUmpiry Score
  • Recent retirement (−1.5)
Form & Matchup
9.6+333 Hard Elo edge
Surface ELO
0.4Hard Elo 1408
9.7Overall Elo 1743
ELO gap
0.3Overall Elo 1429
5.0No prior meetings
H2H
5.0
5.8
Surface form
3.3
0.0
Win streak
0.0Lost last 3
Fatigue & Travel
7.5
Minutes 14d
7.4
7.0
3-set count
0.0
Prev. match
8.0
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
Wu Y.Kozlov S.
Freshness·Even
67
69

Wu Y.: 1 day rest · 3 matches, 72 games (7d) · Kozlov S.: 4 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