MLB: Doubles Leader

Platform comparison

Market context

During the 2026 MLB regular season, one player will accumulate more doubles than any other. A YES share in this market pays out if you correctly identify that player; a NO share pays if you believe the eventual leader will be someone other than a specific person you're backing. The 2% crowd probability reflects deep uncertainty about which individual will lead—a reflection of how evenly distributed power-hitting talent tends to be across rosters in modern baseball.

Historically, the doubles leader has come from a mix of contact hitters and power-hitting outfielders. Over the past decade, players like José Altuve, Mookie Betts, and Freddie Freeman have topped the leaderboard, typically accumulating between 40 and 50 doubles per season. The rarity of any single player dominating this category—compared to home runs or strikeouts—explains why the crowd assigns such a low probability to any named individual. Doubles depend heavily on both batting average and power, making them a less predictable statistic than either metric alone.

Traders should monitor spring training performance and early-season batting averages once the 2026 campaign begins in late March. Team roster construction changes, injuries to established hitters, and shifts in ballpark dimensions can all influence doubles output. Recent off-season free-agent signings and trades will shape which players have the most at-bats and favourable conditions to rack up extra-base hits. The settlement window closes on 11 October 2026, allowing the full regular season to conclude before resolution.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Market UK, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.