Jan Choinski vs Zdenek Kolar — Bad Waltersdorf CH Semi-final

Bad Waltersdorf CH · CHALLENGER · Semi-final
Jan Choinski
GBR
Jan Choinski
#100ATP
1686ELO
1652Clay ELO
$204kYTD
$1.2MCAREER
30 yrs · 196 cm · Right-handed
Last 10 · pre-match
WWWWLWLWWW
2 — 0
Sets
Monday, 15 September 2025
clay
Zdenek Kolar
CZE
Zdenek Kolar
#154ATP
1506ELO
1485Clay ELO
$121kYTD
$1.3MCAREER
29 yrs · 183 cm · Right-handed
Last 10 · pre-match
LWLLWWLLLW
Choinski J.
6-4 6-2
Kolar Z.
Choinski J.
662
Kolar Z.
420

Jan Choinski defeated Zdenek Kolar 6-4 6-2 in the Bad Waltersdorf CH semi-final on clay. The result followed the form book — Jan Choinski came in ranked #100, defending last year's round of 32.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Choinski J.serving68% hold

wins 57% of points on serve vs Kolar Z.

Kolar Z.serving76% hold

wins 61% of points on serve vs Choinski J.

Serve advantage — Kolar Z.

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
Choinski J.Kolar Z.
1st serve in·Even
65%
64%
1st serve points won·Even
69%
68%
2nd serve points won·Even
52%
50%
Service points won·Even
63%
62%
Return points won·Slight edge
37%
42%
Break points saved·Even
64%
60%
Aces / match·Clear edge
4.5
2.1
Double faults / match·Dominant
1.6
3.5

Averages over each player's completed matches in the selected window (97 vs 94). ATP, WTA & Challenger.

Clutch

Under pressure
Choinski J.Kolar Z.
Clutch Rating·Dominant
55
26
Break points saved·Dominant
90
53
Break points won·Slight edge
20
28
Deciding sets·Dominant
87
58
Tiebreaks·Dominant
41
8

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

Umpiry Score

Pre-match
Choinski J.
6.8
Slight advantageUmpiry Score
Kolar Z.
6.0
Even matchUmpiry Score
Form & Matchup
5.9+168 Clay Elo edge
Surface ELO
4.1Clay Elo 1485
6.0Overall Elo 1686
ELO gap
4.0Overall Elo 1506
10.0No prior meetings
H2H
0.0
5.2
Surface form
6.6
0.0
Win streak
0.0
Fatigue & Travel
6.9
Minutes 14d
4.9
7.0
3-set count
4.0
7.0
Prev. match
9.0
Context
6.0
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
Choinski J.Kolar Z.
Freshness·Clear edge
60
84

Choinski J.: 1 day rest · 3 matches, 67 games (7d) · Kolar Z.: 2 days rest · 2 matches, 37 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-slowfavours grinders
SlowFast
Final
Choinski J.
Kopriva V.[2]
7-56-4
Semi-finals
Choinski J.
Kolar Z.
6-46-2
Kopriva V.[2]
Carballes Baena R.[3]
6-16-3
Quarter-finals
Choinski J.
Passaro F.
7-646-3
Carballes Baena R.[3]
Barton H.
6-36-4
Kopriva V.[2]
Carreno Busta P.[5]
6-20-66-1
Kolar Z.
Burruchaga R.[8]
6-06-4
R16
Burruchaga R.[8]
Monteiro T.
6-46-726-0
Choinski J.
Topo M.
2-66-17-66
Passaro F.
Pavlovic L.
6-26-2
Kolar Z.
Piraino G.
6-11-66-2
Carballes Baena R.[3]
Kopp S.
6-13-66-2
Carreno Busta P.[5]
Sorger S.
7-56-4
Kopriva V.[2]
Schwaerzler J.
6-46-2
Barton H.
Diaz Acosta F.
6-45-76-4
R32
Choinski J.
Sachko V.
6-16-4
Pavlovic L.
Paroulek T.
6-46-766-3
Passaro F.
Lajovic D.[6]
6-15-76-4
Piraino G.
Tirante T.[4]
2-66-16-4
Kolar Z.
Dodig M.
6-46-4
Monteiro T.
Merida Aguilar D.
6-36-1
Barton H.
Moeller M.
6-33-67-65
Carballes Baena R.[3]
Novak D.
6-36-1
Carreno Busta P.[5]
Neumayer L.
7-54-66-3
Sorger S.
Kovalik J.
6-45-76-4
Schwaerzler J.
Stebe C.
7-56-1
Kopp S.
Ymer E.
6-46-4
Diaz Acosta F.
Galan D.[7]
6-46-2
Burruchaga R.[8]
Gaubas V.
6-26-1
Kopriva V.[2]
Seyboth Wild T.
6-33-67-61
Topo M.
Martinez P.[1]
6-13-0