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 162 games, with settlement determined by official MLB records and tiebreaker protocols favouring home run total, then batting average. Polymarket's conditional token structure on Polygon allows traders to hold fractional positions in USDC-denominated contracts that resolve to either 1 or 0 based on which player finishes atop the RBI leaderboard. Current pricing has not yet formed, leaving the initial order book open for discovery as market participants assess candidate rosters and offseason acquisitions.

Historical RBI leaders typically accumulate 110–130 runs batted in during full seasons, with the crown usually claimed by sluggers positioned in middle-to-late batting orders on competitive teams. Aaron Judge led MLB with 144 RBIs in 2022, whilst Juan Soto and Mookie Betts have regularly finished in the top five. The 2026 race will depend heavily on which power hitters remain healthy and receive consistent plate appearances; injury to a frontrunner mid-season can shift the leaderboard substantially, as happened when Mike Trout's absence in 2021 opened the door for other contenders.

Traders should monitor offseason free agency announcements through spring training, tracking which teams acquire high-impact bats and how rosters align. The MLB regular season begins in late March 2026, meaning early-season performance data will sharpen probability estimates considerably. Team playoff positioning also matters: clubs fighting for postseason spots tend to keep their best hitters in the lineup longer, whilst non-contenders may rest veterans, affecting cumulative RBI totals by September.

Methodology

This page reviews MLB: RBIs 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 Polymarket UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

Where can I trade this market with the lowest fees?

On Polymarket 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.

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 does it cost to trade on Polymarket UK?

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

Do I need to KYC for this market?

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

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.