Joel Schwaerzler vs Zdenek KolarKigali 1 CH Round of 16

Kigali 1 CH · CHALLENGER · Round of 16
#177ATP
1577ELO
1537Clay ELO
$101kYTD
$299kCAREER
20 yrs · 188 cm · Left-handed
Last 10 · pre-match
LLLLLWLWLW
2 — 1
Sets
Monday, 2 March 2026
clay
#154ATP
1506ELO
1485Clay ELO
$121kYTD
$1.3MCAREER
29 yrs · 183 cm · Right-handed
Last 10 · pre-match
LWLLWWLLLW
Schwaerzler J.
4-6 7-6 7-6
Kolar Z.
Schwaerzler J.
477782
Kolar Z.
662661

Joel Schwaerzler defeated Zdenek Kolar 4-6 7-6 7-6 in the Kigali 1 CH round of 16 on clay. The upset overturned the form book — Zdenek Kolar came in ranked #154, defending last year's round of 32.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Schwaerzler J.serving76% hold

wins 61% of points on serve vs Kolar Z.

Kolar Z.serving76% hold

wins 61% of points on serve vs Schwaerzler J.

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
1st serve in·Slight edge
61%
67%
1st serve points won·Slight edge
73%
66%
2nd serve points won·Even
52%
52%
Service points won·Even
65%
61%
Return points won·Even
36%
40%
Break points saved·Clear edge
66%
53%
Aces / match·Dominant
6.3
2.5
Double faults / match·Even
3.1
3.4

Averages over each player's completed matches in the selected window (34 vs 32). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
55
26
Break points saved·Dominant
89
53
Break points won·Clear edge
4
28
Deciding sets·Dominant
83
58
Tiebreaks·Dominant
77
8

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

Umpiry Score

Pre-match
6.9
Slight advantageUmpiry Score
5.4
Clear underdogUmpiry Score
Form & Matchup
6.1+53 Clay Elo edge
Surface ELO
3.9Clay Elo 1485
6.4Overall Elo 1577
ELO gap
3.6Overall Elo 1506
10.0No prior meetings
H2H
0.0
5.0
Surface form
6.4
0.0
Win streak
Fatigue & Travel
1.9
Minutes 14d
0.0
3-set count
6.0
Prev. match
7.0
6.0
Surface transition
6.0
Context
6.0
Defending pts
6.0

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
88
86

Schwaerzler J.: 5 days rest · 1 match, 30 games (7d) · Kolar Z.: 3 days rest · 2 matches, 37 games (7d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast