TOTAL VOLUME:

$134.2b

24H VOL:

$130,522,377

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,438,389,636

404,028

Markets across

30,214

events

MATCHED EVENTS:

2,681

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Insights
Indices
Tour
All
Trending
Breaking
New
Ending Soon
Politics
Sports
Crypto
Companies
Elections
Financials
Economics
Other
Entertainment
Science and Technology
Porto: Genaro Alberto Olivieri vs Niels Visker
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker

Volume:
$188,158

Completed Match

 - Polymarket

Completed Match - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 1, 2026

Closed: Sep 1, 2:54 PM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

Completed Match

View
100%
1%
Yes 100¢No 0¢
0.1¢
N/A
$9,431
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set 1 O/U 9.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$33
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Match O/U 21.5

View
100%
Yes 100¢No 0¢
20¢
N/A
$30
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Match O/U 22.5

View
100%
Yes 100¢No 0¢
1¢
N/A
$8
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker

View
0%
59%
Yes 0¢No 100¢
—
N/A
$178,628
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set Handicap +/-1.5

View
0%
Yes 0¢No 100¢
—
N/A
$26
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set Handicap +/-1.5

View
0%
99%
Yes 0¢No 100¢
—
N/A
$1
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set 1 O/U 8.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Total Sets: O/U 2.5

View
100%
1%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set 1 Winner

View
0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set 2 Winner

View
100%
1%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set 2 O/U 8.5

View
100%
Yes 100¢No 0¢
1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set 2 O/U 9.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set 1 O/U 10.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Set 2 O/U 10.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Porto: Genaro Alberto Olivieri vs Niels Visker Match O/U 23.5

View
100%
Yes 100¢No 0¢
1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 16

Description

This market refers to the tennis match between Genaro Alberto Olivieri and Niels Visker in the Porto, originally scheduled for September 1, 2026 at 10:00AM ET. This market will resolve to 'Genaro Alberto Olivieri' if Genaro Alberto Olivieri advances against Niels Visker. This market will resolve to 'Niels Visker' if Niels Visker advances against Genaro Alberto Olivieri. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 15, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.

Polymarket

This market refers to the tennis match between Genaro Alberto Olivieri and Niels Visker in the Porto, originally scheduled for September 1, 2026 at 10:00AM ET. This market will resolve to 'Genaro Alberto Olivieri' if Genaro Alberto Olivieri advances against Niels Visker. This market will resolve to 'Niels Visker' if Niels Visker advances against Genaro Alberto Olivieri. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 15, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.

Frequently asked questions

Prediction market odds on Polymarket reflect aggregated trader sentiment and can diverge noticeably from traditional sportsbook lines. While sportsbooks set prices based on analytics and risk management, this market prices in real-time crowd wisdom, often producing sharper or more volatile odds. Traders may react faster to new information, causing this market to lead or lag sportsbook prices depending on recent news or performance shifts from the players.

This market resolves around Sep 8, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result is determined by the match’s final statistics, such as goals scored or assists made by each player, and will be reflected automatically once official sources confirm the data.

Injuries, coaching decisions, or recent form for either player can shift trader sentiment before Sep 8, 2026. High-profile interviews, betting trends, or unexpected changes to the match setup may also cause rapid price swings. As the event draws closer, any news affecting Genaro Alberto Olivieri or Niels Visker — even minor — could dramatically reshape this market’s odds on Polymarket based on how traders interpret the updated outlook.