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MLB: Doubles Leader

"MLB: Doubles Leader" on Polymarket, Kalshi and Is Polymarket Legal in Canada — what traders need to know about platform choice, KYC and tax law.

James Wood 28% Josh Jung 26% Kevin McGonigle 20% Willy Adames 10% Volume: $1.1M Liquidity: $26K Closes: 11 Oct 2026
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MLB: Doubles Leader

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Is Polymarket Legal in Canada) Pick
polygram.ink (preferred broker)
 28% 72% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open the market →
Polymarket (direct)
polymarket.com
 28% 72% 0% Geo-blocked in US/UK/EU USDC, on-chain Open the market →
Kalshi
kalshi.com
 — — Up to 7% per trade US-only, KYC required USD Open the market →
Betfair Exchange
betfair.com
 — — 2-5% commission Full KYC from first trade GBP / EUR Open the market →
Manifold Markets
manifold.markets
 — — Play-money (mana) None — play-money Mana (no cash-out) Open the market →

Outcome probabilities

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

OutcomeProbability
James Wood28%
Josh Jung26%
Kevin McGonigle20%
Willy Adames10%
Matt Olson10%
Bobby Witt Jr.8%
Freddie Freeman7%
Ernie Clement5%
Ezequiel Tovar4%
Nico Hoerner3%
Mauricio Dubón3%
Taylor Ward2%
Bo Bichette2%
Bryan Reynolds2%
Francisco Lindor2%
Vladimir Guerrero Jr.2%
Gavin Sheets1%
Casey Schmitt1%
Pete Alonso1%
Jarren Duran1%
Maikel Garcia1%
Pete Crow-Armstrong1%
Salvador Perez1%
Bryce Harper1%
Ian Happ1%
Juan Soto1%
George Springer1%
Corbin Carroll1%
Riley Greene1%
Colt Keith0%
Christian Walker0%
Adley Rutschman0%
Rhys Hoskins0%
Gabriel Moreno0%
Brent Rooker0%
CJ Abrams0%
Shohei Ohtani0%
Aaron Judge0%
Andy Pages0%
Nick Kurtz0%
Yordan Alvarez0%
Player B0%
Player C0%
Player D0%
Player E0%
Player F0%
Player G0%
Player H0%
Player I0%
Player J0%
Player K0%
Player L0%
Player M0%
Player N0%
Player O0%
Player P0%
Player Q0%
Player R0%
Player S0%
Player T0%
Player U0%
Player V0%
Player W0%
Player X0%
Player Y0%
Player Z0%
Player AA0%
Player AB0%
Player AC0%
Player AD0%
Player AE0%
Player AF0%
Player AG0%
Player AH0%
Player AI0%
Player AJ0%
Player AK0%
Player AL0%
Player AM0%
Player AN0%
Player AO0%
Player AP0%
Player AQ0%
Player AR0%
Player AS0%
Player AT0%
Player AU0%
Player AV0%
Player AW0%
Player AX0%
Other0%

Market context

MLB: Doubles Leader — current market-implied probability: 28%. This market will resolve according to the player who hits the most doubles during the 2026 Major League Baseball regular season. In the event of a tie, this market will resolve according to the offic…

Methodology

This overview of MLB: Doubles Leader reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.

Resolution & payout

On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.

FAQ

Is Polymarket legal in my country?
Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Is Polymarket Legal in Canada has a different geo footprint.
How are winnings taxed?
Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
What happens during a tax audit?
You're responsible for documenting your trades. Is Polymarket Legal in Canada exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
Are prediction markets gambling?
Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
What if regulation changes?
If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Polymarket Legal in Canada would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
Jordan LeeJordan LeeSports Prediction ReporterandChris ReedChris ReedPolitical Forecasting Editor

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