Amit Vales vs Johan Nikles — Bonn Qualifying Semi-final

Bonn · CHALLENGER · Qualifying Semi-final
ISR
Amit Vales
#680ATP
21 yrs
Last 10
LWLLWWWLWL
—
Sets
Sunday, 26 July 2026 ·
clay
Johan Nikles
SUI8
Johan Nikles
#412ATP
1319ELO
1306Clay ELO
29 yrs · 173 cm · Right-handed
Last 10
LWWLLWWLWW
Vales A.
vs
Nikles J.

Amit Vales faces Johan Nikles in the Bonn qualifying semi-final on clay. Johan Nikles holds the paper edge — ranked #412. Recent clay form is closely matched.

Win Probability

Pre-match · updated 03:50 UTC
Vales A.40%
Nikles J.60%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Slight edge · Nikles J. narrowly ahead

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

Key context

  • Fatigue load: Both played one three-setter in the past fortnight — neither arrives fresh.
  • Surface form: Both 2 of 5 on clay recently — court-specific quality nearly identical despite the ranking gap.

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
Vales A.
5.8
Slight disadvantageUmpiry ScorePartial · surface data limited
Nikles J.
5.9
Even matchUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0No prior meetings
3.32 of last 6 on clay
Surface form
6.27 of last 10 on clay
0.0
Win streak
0.0
Fatigue & Travel
7.01 three-setter in 14 days
3-set count
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.

4 vs 13 matches

Statistics

This season
Vales A.Nikles J.
1st serve in·Even
56%
59%
1st serve points won·Slight edge
68%
61%
2nd serve points won·Even
51%
49%
Service points won·Slight edge
61%
56%
Return points won·Even
42%
46%
Break points saved·Slight edge
64%
55%
Aces / match·Clear edge
3.3
1.8
Double faults / match·Slight edge
3.5
2.8

Averages over each player's completed matches in the selected window (4 vs 13). ATP, WTA & Challenger.

Serve vs return

This season
Vales A.serving57% hold

wins 53% of points on serve vs Nikles J.

Nikles J.serving57% hold

wins 53% of points on serve vs Vales A.

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

Freshness

Recent load
Vales A.Nikles J.
Freshness·
84
—

Vales A.: 5 days rest · 2 matches, 43 games (7d). Higher means fresher. About

Conditions

Court speed
Mediumbalanced pace
SlowFast
Weather forecast
23°COvercast
Wind 16 km/hHumidity 59%

Head to head

No previous meetings on record.

Draw