Genaro Alberto Olivieri vs Niels ViskerPorto Round of 32

Porto · CHALLENGER · Round of 32
#222ATP
1489ELO
1464Clay ELO
28 yrs · 175 cm · Right-handed
Last 10 · pre-match
LWLWLWWLWL
1 — 2
Sets
Tuesday, 1 September 2026 ·
clay
Court 1 · 4th on
#426ATP
1371ELO
1262Clay ELO
24 yrs · 191 cm · Right-handed
Last 10 · pre-match
WWLLWWWLWL
Olivieri G.
6-7 7-6 6-7
Visker N.
Olivieri G.
6378621
Visker N.
7766772

Niels Visker defeated Genaro Alberto Olivieri in the Round of 32 at the Porto clay court tournament. The match ended with a score of 7-6, 6-7, 7-6 in favor of Visker. Visker hit 15 aces and 7 double faults, while converting 67% of break points and winning 4 service breaks, compared to Olivieri's 2 aces, 0 double faults, 36% break point conversion, and 4 service breaks.

Generated automatically from Umpiry match data.

Key context

Head to head

No previous meetings on record.

Statistics

This season
1st serve in·Clear edge
77%
59%
1st serve points won·Clear edge
59%
80%
2nd serve points won·Slight edge
50%
55%
Service points won·Clear edge
57%
70%
Return points won·Slight edge
40%
32%
Break points saved·Clear edge
60%
76%
Aces / match·Dominant
1.0
10.7
Double faults / match·Dominant
1.1
3.4

Averages over each player's completed matches in the selected window (22 vs 20). ATP, WTA & Challenger.

Win Probability

Pre-match · updated 14:50 UTC
Olivieri G.49%
Visker N.51%
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.

Umpiry Score

Pre-match
6.5
Marginal edgeUmpiry Score
4.6
Heavy underdogUmpiry Score
  • Back-to-back day (−0.5)
Form & Matchup
7.5+202 Clay Elo edge
Surface ELO
2.5Clay Elo 1262
6.5Overall Elo 1489
ELO gap
3.5Overall Elo 1371
5.0No prior meetings
H2H
5.0No prior meetings
4.95 of last 10 on clay
Surface form
6.36 of last 10 on clay
0.0
Win streak
Fatigue & Travel
7.01 three-setter in 14 days
3-set count
6.0Hard → Clay
Surface transition
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.

Freshness

Recent load
Freshness·Even
63
59

Olivieri G.: 1 day rest · 2 matches, 55 games (7d) · Visker N.: 1 day rest · 3 matches, 74 games (7d). Higher means fresher. About

Conditions

Court speed
Slowlow bounce, long rallies
SlowFast
Weather
21°CClear
Wind 12 km/hHumidity 76%

Draw