Guido Ivan Justo vs Sascha Gueymard WayenburgLiberec Round of 32

Liberec · CHALLENGER · Round of 32
#224ATP
1443ELO
1433Clay ELO
28 yrs · 178 cm · Right-handed
Last 10
LWLWLWLWWW
Sets
Monday, 27 July 2026 ·
clay
#268ATP
1413ELO
1369Clay ELO
22 yrs · 188 cm · Right-handed
Last 10
LWLWLWWLWL
Ivan Justo G.
vs
Gueymard Wayenburg S.

Guido Ivan Justo faces Sascha Gueymard Wayenburg in the Liberec round of 32 on clay. Guido Ivan Justo holds the paper edge — ranked #224, a roughly 60-point clay Elo advantage. Recent clay form is closely matched.

Win Probability

Pre-match · updated 21:50 UTC
Ivan Justo G.58%
Gueymard Wayenburg S.42%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Toss-up · Too close to call

Calibrated model · 63% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.

Key context

Common opponents

Last 12 months
No common opponents in the last 12 months.
Includes tour-level, 125s, qualifying and team events (⚑). Walkovers excluded. Describes past results in different contexts — not a prediction.

Umpiry Score

Pre-match
6.3
Marginal edgeUmpiry Score
5.9
Even matchUmpiry Score
Form & Matchup
5.8+63 Clay Elo edge
Surface ELO
4.2Clay Elo 1369
5.4Overall Elo 1443
ELO gap
4.6Overall Elo 1412
5.0No prior meetings
H2H
5.0No prior meetings
5.46 of last 10 on clay
Surface form
4.95 of last 10 on clay
0.0
Win streak
0.0
Fatigue & Travel
3-set count
7.01 three-setter in 14 days
Context
5.0Didn't play here last year
Defending pts
5.0Didn't play here last year

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.

36 vs 24 matches

Statistics

This season
1st serve in·Even
64%
63%
1st serve points won·Slight edge
63%
70%
2nd serve points won·Even
51%
48%
Service points won·Even
59%
62%
Return points won·Slight edge
47%
40%
Break points saved·Even
57%
59%
Aces / match·Dominant
1.2
7.1
Double faults / match·Clear edge
1.8
2.8

Averages over each player's completed matches in the selected window (36 vs 24). ATP, WTA & Challenger.

Serve vs return

This season
Ivan Justo G.serving64% hold

wins 56% of points on serve vs Gueymard Wayenburg S.

Gueymard Wayenburg S.serving55% hold

wins 52% of points on serve vs Ivan Justo G.

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

Clutch

Under pressure
Clutch Rating·Even
12
10
Break points saved·Dominant
23
63
Break points won·Clear edge
42
20
Deciding sets·Clear edge
20
5
Tiebreaks·Clear edge
50
27

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

Freshness

Recent load
Freshness·Slight edge
80
71

Ivan Justo G.: 2 days rest · 2 matches, 34 games (7d) · Gueymard Wayenburg S.: 2 days rest · 2 matches, 56 games (7d). Higher means fresher. About

Head to head

No previous meetings on record.

Draw