MLB: Stolen Bases Leader

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Market context

The 2026 Major League Baseball regular season is underway, and the market asks which player will steal the most bases before the settlement window closes in late September. With a current crowd-implied probability of just 8% for the "YES" outcome, the market reflects significant uncertainty about whether a single contender will dominate the stolen base leaderboard, despite Cincinnati Reds shortstop Elly De La Cruz being the betting favourite at +300, implying a 25% chance of victory [1].

Historically, stolen base leaders have often emerged from players with elite speed and aggressive tendencies, yet ties are common when multiple speedsters post similar numbers. In 2026, projections from ATC at FanGraphs and FantasyPros suggest De La Cruz and Chandler Simpson will both reach 41 stolen bases, creating a high likelihood of a tie that would force resolution via caught stealings or on-base percentage [1][3]. This precedent frames the current 8% probability as a reflection of the market’s expectation that no single player will decisively outpace the rest, rather than a lack of speed in the league.

Traders should monitor upcoming roster announcements, injury updates, and schedule dependencies that could alter a player’s opportunities to steal bases. Recent news from Fox Sports indicates Nasim Nuñez and Bobby Witt Jr. are already leading with 77 stolen bases each, suggesting the leaderboard is volatile and subject to rapid shifts [2]. The market is leaning on the catalyst of mid-season performance disclosures, particularly any declarations from team managers regarding aggressive base-running strategies, which could be tracked via MLB.com’s official stats [6].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks MLB: Stolen Bases Leader across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. Trump Prediction routes every trade through to Polymarket — at 0% fees.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

Where can I trade this market with the lowest fees?

On Trump Prediction, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Trump Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, Trump Prediction triggers a quick verification flow that finishes in minutes.