Guilherme Valdoleiros vs Niels ViskerPrediction, Head-to-Head Results, and Stats
Guilherme Valdoleiros and Niels Visker have met 1 time since 2026; Niels Visker leads 1–0. Across all meetings Valdoleiros has taken 0 sets to Visker's 2. Their most recent meeting: Niels Visker won at Porto Challenger (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Valdoleiros | Visker | ||
|---|---|---|---|---|
| Indicator | Guilherme Valdoleiros | Niels Visker | ||
| Wins in straight sets | 67% | 8/12 | 84% | 31/37 |
| Wins a set when losing | 21% | 5/24 | 29% | 7/24 |
| Goes to a deciding set | 25% | 9/36 | 21% | 13/61 |
| Covers −1.5 sets as favorite | 67% | 2/3 | 72% | 21/29 |
| Covers +1.5 sets as underdog | 18% | 3/17 | 55% | 17/31 |
| Tiebreak sets won | 20% | 1/5 | 54% | 20/37 |
| Wins after taking set 1 | 89% | 8/9 | 88% | 36/41 |
| Wins 2-0 after taking set 1 | 89% | 8/9 | 76% | 31/41 |
Colored rows are higher-is-better: green above 50%, red below. Favorite/underdog set by book odds; cover rows count only matches with odds on record. Head-to-head: 1 of 1 completed meetings ended in straight sets (Valdoleiros 0, Visker 1).
Style Matchup
Playing styles and historical archetype record
Valdoleiros
🏃 Pusher
Visker
🤖 Servebot
Previous meetings
1 career meeting, newest first
Aug 30, 2026
Porto Challenger
C Clay · 1st Round Qualifying
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Valdoleiros | Visker | ||
|---|---|---|---|---|
| Outcome | Guilherme Valdoleiros | Niels Visker | ||
| 1 or more | 29% | 2/7 | 100% | 12/12 |
| 3 or more | 0% | 0/7 | 92% | 11/12 |
| 5 or more | 0% | 0/7 | 83% | 10/12 |
| 10 or more | 0% | 0/7 | 42% | 5/12 |
| 15 or more | 0% | 0/7 | 33% | 4/12 |
| 20 or more | 0% | 0/7 | 8% | 1/12 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Valdoleiros | Visker |
|---|---|---|
| W-L | 0–6 | 9–6 |
| Avg odds | 14.11 | 1.97 |
| ROI % | -100.0% | -6.8% |
| Units P/L | -6.00u | -1.02u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Valdoleiros | Visker |
|---|---|---|
| Countries | 1 | 1 |
| Events | 1 | 1 |
| Matches | 1 | 3 |
| Distance | 0 mi · 0 km | 0 mi · 0 km |
| Route | POR | FRA |
Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. Route is the order of countries visited; consecutive stops in the same country are shown once. Distance is the great-circle total between host cities, shown only when every stop in the window is geocoded. A rough fatigue signal, not a headline stat.
Common opponents
Results vs. opponents both players faced · Last 12 months
Visker has a higher win rate against shared opponents (67% vs Valdoleiros's 33%).
| Opponent | Valdoleiros | Visker |
|---|---|---|
| Joshua Leon-Nestler | W 62 61 | W 62 62 |
| Vladyslav Orlov | L 16 16 | W 36 75 61 |
| Gauthier Onclin | L 16 06 | L 26 67 |
Recent Form
Last five matches per player
Patrick Schoen
Maia Challenger · 1st Round Qualifying
Oct 11
Vladyslav Orlov
Braga Challenger · 1st Round Qualifying
Oct 4
Robin Bertrand
Porto Challenger · 1st Round Qualifying
Sep 27
Blu Baker
M25 Setubal · 3rd Round Qualifying
Sep 21
Daniil Tsebrenko
M25 Setubal · 2nd Round Qualifying
Sep 21
Joshua Leon-Nestler
M25 Setubal · 1st Round Qualifying
Sep 20
Patrick Schoen
M25 Sintra · 1st Round
Sep 16
Jack Anthrop
M25 Sintra · 1st Round
Sep 8
Davide Vargiu
Olbia Challenger · 1st Round Qualifying
Oct 11
Marko Topo
Villena Challenger · 1st Round Qualifying
Oct 4
Harold Mayot
Mouilleron-Le-Captif Challenger · 1st Round
Sep 30
Niels McDonald
Mouilleron-Le-Captif Challenger · 3rd Round Qualifying
Sep 28
Tom Paris
Mouilleron-Le-Captif Challenger · 1st Round Qualifying
Sep 27
Daniel Siniakov
Tulln Challenger · 1st Round Qualifying
Sep 6
Pedro Vives Marcos
Porto Challenger · 2nd Round
Sep 3
Genaro Alberto Olivieri
Porto Challenger · 1st Round
Sep 1
Win rate
Matches, sets and games won · Last 12 months · 36–61 matches
| Metric | Valdoleiros | Visker |
|---|---|---|
| Matches won | 33% | 61% |
| Sets won | 36% | 60% |
| Games won | 45% | 53% |
Record by tier
Head-to-head record by tournament tier
| Stage | Valdoleiros | Visker |
|---|---|---|
| ATP Challenger Tour | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Valdoleiros | Visker |
|---|---|---|
| Clay | 0 | 1 |
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