MLB: Stolen Bases Leader

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Market context

The 2026 Major League Baseball regular season will conclude on 28 September, determining which player accumulates the most stolen bases. A prediction market currently assigns an 8% implied probability to the "YES" outcome, suggesting the crowd views the event as a long shot, yet this diverges sharply from traditional sportsbook lines. BetMGM lists Cincinnati Reds shortstop Elly De La Cruz as the favourite at +300, implying a 25% chance, while projection systems like ATC at FanGraphs forecast him and Chandler Simpson to lead with 41 stolen bases each. This discrepancy highlights a meaningful gap between the conservative crowd-implied probability and the more optimistic analyst consensus favouring established speedsters.

Historical precedents show that stolen base leaders often emerge from players with elite speed and high usage rates, such as De La Cruz, who has consistently topped the charts in recent years. Current 2026 stats from FOX Sports reveal Nasim Nuñez and Bobby Witt Jr. are tied at 77 stolen bases, though these figures appear to reflect a different season or data anomaly given the projection of 41 for the season leader. Traders should monitor roster announcements and injury updates, particularly for the Reds and Rays, as any shift in playing time could drastically alter the leaderboard. Recent coverage from CBS Sports confirms the top four favourites remain De La Cruz, Simpson, Corbin Carroll, and Witt Jr., reinforcing the expectation that speed will dominate the final tally.

The settlement window closes on 28 September 2026, with tie-breakers favouring fewer caught stealings, then higher on-base percentage. Divergence between the 8% prediction market price and the 25% sportsbook implied probability for De La Cruz suggests a potential mispricing opportunity for traders who trust the projection data. Analysts at FantasyPros and CBS Sports continue to prioritise the top four names, indicating that the market’s low probability may not fully account for the likelihood of a speed-heavy leader emerging. Monitoring mid-season roster moves and the performance of these key players will be essential for assessing whether the crowd’s caution is warranted or if the odds should align closer to the sportsbook expectations.

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Methodology

This page reviews MLB: Stolen Bases Leader across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Best Prediction Markets — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Is this market available outside the US?

Best Prediction Markets 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.

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.

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, Best Prediction Markets triggers a quick verification flow that finishes in minutes.