MLB: RBIs Leader

Platform comparison

Active sub-markets

Market context

The 2026 MLB regular season will crown a single player with the most runs batted in across all 30 teams. RBIs remain a primary offensive statistic, though their predictive value varies by team construction and ballpark factors. The settlement mechanism includes tiebreakers: home runs first, then batting average, reflecting MLB's official statistical hierarchy. This market resolves on 28 September 2026, coinciding with the final day of the regular season.

Historically, RBI leaders have emerged from teams with strong offensive lineups and consistent run-scoring environments. Aaron Judge led MLB in 2022 with 131 RBIs; Mookie Betts and Kyle Schwarber competed closely in 2023. The spread between leader and runner-up typically ranges from 5 to 15 RBIs across a full season. Variance increases when injury disrupts a contender's batting order or when a player receives fewer plate appearances due to team performance. No single pre-season favourite has dominated RBI markets with certainty; position (corner infielders and designated hitters accumulate more RBIs than outfielders or shortstops) and team payroll correlate moderately with outcomes.

From a regulatory standpoint, this market operates under German GlüStV provisions where applicable and remains subject to CFTC oversight in US jurisdictions. Traders in non-regulated territories may access positions up to $1,500 without KYC documentation, though larger stakes require identity verification. Spring training performance in March 2026 and opening-day roster announcements will signal which lineups possess sufficient depth to sustain high RBI totals. Mid-season trades and injury reports—particularly affecting cleanup hitters—represent material catalysts. Monitor team win-loss records; contenders typically generate more RBI opportunities than rebuilding clubs.

Methodology

We track MLB: RBIs Leader on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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

Where can I trade this market with the lowest fees?

On Polymarket Legal UK, 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?

Polymarket Legal UK 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.

What does it cost to trade on Polymarket Legal UK?

Zero. Polymarket Legal UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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, Polymarket Legal UK triggers a quick verification flow that finishes in minutes.