MLB: RBIs Leader

Platform comparison

Market context

The market bets on which player accumulates the most runs batted in during the 2026 Major League Baseball regular season, with settlement fixed after the final game in September. Current crowd-implied probability for the YES contract sits at 9%, a figure that diverges sharply from traditional sportsbook pricing where Aaron Judge leads at +450 odds, implying an 18.18% chance of victory [1][2]. This discrepancy suggests prediction-market traders are pricing in significant injury risk or a late-season slump for the Yankees slugger, despite FanGraphs projection systems unanimously favouring him to top the leaderboard [1].

Historically, RBI leaders often emerge from players with high batting averages and consistent lineup protection rather than pure power hitters, though Judge’s 2024 and 2025 home run totals have skewed recent trends toward power-centric accumulation. Comparable cases from the last decade show that favourites holding double-digit implied probabilities frequently lose due to mid-season injuries, with longshots like Cal Raleigh and Kyle Schwarber capturing the title in 2024 and 2025 respectively [2]. The 9% implied probability aligns more closely with these volatile historical outcomes than the static sportsbook favourite status.

Traders must monitor the All-Star break roster announcements and July injury reports, as the second half of the season typically dictates the final RBI count [3]. Recent news confirms Judge remains the betting favourite for both home runs and RBIs, yet his durability remains the primary variable [2]. Watch for any late-August slumps or benchings, as players who struggle post-break rarely overtake those maintaining production through September, making health status the critical catalyst for this contract’s resolution [3].

Sources: 1 · 2 · 3 · 4 · 5

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 Best Prediction Markets, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Best Prediction Markets. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.