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ATP 1000 Montreal: Winner

Polymarket vs Kalshi vs Betfair vs Smarkets for "ATP 1000 Montreal: Winner" — live odds, fees and KYC side-by-side.

A 50% B 50% C 50% D 50% Volume: $85K Liquidity: $92K
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ATP 1000 Montreal: Winner

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Kalshi Alternative) Pick
polygram.ink (preferred broker)
 50% 50% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Go to the live market →
Polymarket (direct)
polymarket.com
 50% 50% 0% Geo-blocked in US/UK/EU USDC, on-chain Go to the live market →
Kalshi
kalshi.com
 — — Up to 7% per trade US-only, KYC required USD Go to the live market →
Betfair Exchange
betfair.com
 — — 2-5% commission Full KYC from first trade GBP / EUR Go to the live market →
Manifold Markets
manifold.markets
 — — Play-money (mana) None — play-money Mana (no cash-out) Go to the live market →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
A50%
B50%
C50%
D50%
E50%
F50%
G50%
H50%
I50%
J50%
Other50%
Ben Shelton12%
Arthur Fils6%
Tommy Paul5%
Brandon Nakashima5%
Jakub Mensik5%
Casper Ruud4%
Frances Tiafoe4%
Matteo Arnaldi4%
Hubert Hurkacz3%
Tallon Griekspoor3%
Mariano Navone3%
Nuno Borges3%
Cameron Norrie3%
Alex Michelsen3%
Alexei Popyrin3%
Luciano Darderi2%
Arthur Rinderknech2%
Jannik Sinner0%
Alexander Zverev0%
Daniil Medvedev0%
Andrey Rublev0%
Grigor Dimitrov0%
Stefanos Tsitsipas0%
Taylor Fritz0%
Ugo Humbert0%
Holger Rune0%
Felix Auger-Aliassime0%
Alejandro Tabilo0%
Karen Khachanov0%
Sebastian Korda0%
Nicolas Jarry0%
Alexander Bublik0%
Jack Draper0%
Gael Monfils0%
Adrian Mannarino0%
Jordan Thompson0%
Tomas Martin Etcheverry0%
Marcos Giron0%
Tomas Machac0%
Pedro Martinez0%
Alejandro Davidovich Fokina0%
Fabian Marozsan0%
Flavio Cobolli0%
Miomir Kecmanovic0%
Lorenzo Sonego0%
Roman Safiullin0%
Denis Shapovalov0%
Gabriel Diallo0%
Milos Raonic0%
Kei Nishikori0%
Vasek Pospisil0%
Pablo Carreno Busta0%
Dusan Lajovic0%
Giovanni Mpetshi Perricard0%
Corentin Moutet0%
Jaume Munar0%
Roberto Carballes Baena0%
Dominik Koepfer0%
Facundo Diaz Acosta0%
Max Purcell0%
Aleksandar Vukic0%
Marton Fucsovics0%
Hugo Gaston0%
Federico Coria0%
Sumit Nagal0%
Thiago Seyboth Wild0%
Rinky Hijikata0%
Christopher O'Connell0%
Daniel Altmaier0%

Market context

Market consensus: 50% chance of atp 1000 montreal: winner. Prediction markets aggregate real capital to produce this probability signal. This market will resolve according to the winner of the 2026 National Bank Open (ATP Masters 1000, Montreal), currently scheduled for August 2 – August 13, 2026. If this tournamen…

Methodology

We read ATP 1000 Montreal: Winner from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

What does Polymarket cost vs Kalshi?
Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
Which platform has the deepest liquidity?
Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
Is Betfair a Polymarket alternative?
Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
What about Smarkets as an alternative?
Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
Which platform is accessible globally?
Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.
Chris ReedChris ReedPolitical Forecasting EditorandMaya TorresMaya TorresFinancial Markets Writer

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