Zdenek Kolar vs Roman Andres BurruchagaBad Waltersdorf CH Quarter-final

Bad Waltersdorf CH · CHALLENGER · Quarter-final
#153ATP
1506ELO
1485Clay ELO
$121kYTD
$1.3MCAREER
29 yrs · 183 cm · Right-handed
Last 10 · pre-match
LLWLLWWLLL
2 — 0
Sets
Monday, 15 September 2025
clay
#67ATP
1711ELO
1694Clay ELO
$446kYTD
$1.2MCAREER
24 yrs · 183 cm · Right-handed
Last 10 · pre-match
LLLLWLLWLW
Kolar Z.
6-0 6-4
Burruchaga R.
Kolar Z.
662
Burruchaga R.
040

Zdenek Kolar defeated Roman Andres Burruchaga 6-0 6-4 in the Bad Waltersdorf CH quarter-final on clay. The upset overturned the form book — Roman Andres Burruchaga came in ranked #67.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Kolar Z.serving63% hold

wins 55% of points on serve vs Burruchaga R.

Burruchaga R.serving64% hold

wins 56% of points on serve vs Kolar Z.

Baseline battle — serve is shaky, expect plenty of breaks

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·Even
64%
62%
1st serve points won·Even
68%
68%
2nd serve points won·Even
50%
50%
Service points won·Even
62%
61%
Return points won·Even
42%
43%
Break points saved·Even
60%
59%
Aces / match·Even
2.1
2.4
Double faults / match·Even
3.5
3.4

Averages over each player's completed matches in the selected window (94 vs 114). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
26
66
Break points saved·Clear edge
53
68
Break points won·Dominant
28
73
Deciding sets·Dominant
58
84
Tiebreaks·Dominant
8
64

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

Umpiry Score

Pre-match
5.8
Slight disadvantageUmpiry Score
7.0
Strong advantageUmpiry Score
Form & Matchup
2.1Clay Elo 1485
Surface ELO
7.9+209 Clay Elo edge
1.9Overall Elo 1506
ELO gap
8.1Overall Elo 1711
5.0No prior meetings
H2H
5.0
6.6
Surface form
5.4
0.0
Win streak
0.0
Fatigue & Travel
4.9
Minutes 14d
8.5
4.0
3-set count
7.0
9.0
Prev. match
6.0
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·Even
90
94

Kolar Z.: 5 days rest · 1 match, 19 games (7d) · Burruchaga R.: 7 days rest · 1 match, 18 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-slowfavours grinders
SlowFast