MLB: AL Rookie of the Year

Platform comparison

Active sub-markets

Market context

Each November, Major League Baseball's awards committee selects the American League Rookie of the Year—the most impactful first-year player across all 15 AL teams during the regular season. A YES share in this market pays out if you correctly name that winner; a NO share pays if anyone else wins. The 4% crowd probability reflects high uncertainty about which prospect will break through in 2026, since most candidates remain unknown or unproven at the major-league level.

Historically, Rookie of the Year voting has favoured position players over pitchers, with hitters winning roughly two-thirds of awards since 2000. The 2025 winner will offer the most recent comparable case for assessing voting patterns and media consensus. Prospects drafted in 2023–2024 who reach the majors in 2026 will form the primary candidate pool; early call-ups and players with strong spring training performances typically gain visibility. The award criteria emphasise offensive production, defensive reliability, and overall impact—not raw talent alone—meaning a prospect's readiness and opportunity matter as much as ceiling.

Trade catalysts include winter league performances from December 2025 onwards, spring training results in February–March 2026, and opening-day roster announcements. Injuries to established AL players can accelerate prospect promotions and increase their award chances. Beat reporters covering individual franchises will signal which rookies are gaining traction by mid-season; All-Star selections in July 2026 typically correlate with eventual voting outcomes. The final voting window closes shortly after the regular season ends in late September 2026.

Methodology

This page reviews MLB: AL Rookie of the Year 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 Prediction Market UK — 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

Where can I trade this market with the lowest fees?

On Prediction Market 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?

Prediction Market 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.

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 Prediction Market UK?

Zero. Prediction Market 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.