TOTAL VOLUME:

$154.4b

24H VOL:

$235,918,089

24H TRANSACTIONS:

2,984,028,936

OPEN INTEREST:

$1,884,820,873

413,109

Markets across

40,428

events

MATCHED EVENTS:

4,364

PLATFORM COVERAGE:

5

Polymarket:

37%

VS.

Kalshi:

63%

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2026 ATP Brussels Winner
kalshi

Who will win the 2026 ATP Brussels?

Volume:
$4,150

Tallon Griekspoor

 - Kalshi

Tallon Griekspoor - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 26, 2026

Closed: Oct 26, 9:39 AM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Tallon Griekspoor

View
100%
7%
Yes 100¢No 0¢
—
N/A
$3,715
N/A
N/A
$3,715
1w 4d 15h
Yes
kalshi

Jan-Lennard Struff

0%
54%
Yes 0¢No 100¢
—
N/A
$405
N/A
N/A
$405
1w 4d 15h
No
kalshi

Arthur Fils

0%
Yes 0¢No 100¢
—
N/A
$30
N/A
N/A
$30
1w 4d 15h
No
kalshi

Francisco Cerundolo

N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
1w 4d 15h
No
Total markets: 4

Description

This event tracks whether specific tennis players will win an upcoming professional tournament in Brussels. Each market focuses on a different player's potential victory. If any listed player claims the championship, their corresponding market will settle positively.

Kalshi

If Arthur Fils wins the 2026 2026 ATP Brussels professional tennis tournament, then the market resolves to Yes. If Francisco Cerundolo wins the 2026 2026 ATP Brussels professional tennis tournament, then the market resolves to Yes. If Jan-Lennard Struff wins the 2026 2026 ATP Brussels professional tennis tournament, then the market resolves to Yes. If Tallon Griekspoor wins the 2026 2026 ATP Brussels professional tennis tournament, then the market resolves to Yes.

Frequently asked questions

Prediction market odds often reflect the collective wisdom of informed traders, which can differ from sportsbook odds influenced by factors like public betting patterns and house biases. Sportsbooks may adjust their lines to attract action, while this market tends to more closely represent the true perceived probabilities of each player winning. It’s common to see discrepancies, especially early in the market, as prediction markets can incorporate information and analysis more rapidly than traditional sportsbooks. However, as the event approaches, the odds on Kalshi and sportsbook lines often converge.

On Kalshi, this market is priced using a continuous double auction, meaning traders buy and sell contracts representing each potential winner. The price of a contract reflects the probability of that player winning, with higher prices indicating a greater perceived chance of success. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders set the odds by placing bids and asks, and the market price fluctuates based on supply and demand. This dynamic pricing mechanism allows the market to quickly incorporate new information and adjust probabilities as the tournament progresses. The current market reflects the aggregated assessment of all participants trading on Kalshi.

This market resolves around Nov 14, 2026, with the outcome confirmed once the winner of the 2026 ATP Brussels tournament is verifiable from credible public reporting. The resolution will be based on the official results published by the ATP Tour. The player who wins the final match will be declared the winner of this market. Traders will then be able to claim their winnings based on the final price of the contract they held for the winning player. The outcome will be determined by the official tournament results, ensuring a transparent and verifiable resolution process.

Numerous factors could significantly impact this market. Player injuries or withdrawals are major catalysts, as they immediately alter the competitive landscape. Unexpected results in lead-up tournaments, changes in player form, and even weather conditions affecting playing surfaces can all influence trading activity. News regarding player health, coaching changes, or strategic shifts could also move the market. As the tournament nears, match-specific information, such as head-to-head records and recent performance, will become increasingly important in driving price fluctuations on Kalshi.