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MLB: NL Rookie of the Year

How the prediction-market book is pricing "MLB: NL Rookie of the Year" right now, with a side-by-side platform comparison and zero-fee CTAs.

58% YES 42% NO Volume: $797K Liquidity: $68K Closes: 19 Dec 2026
Trade on Kalshi UK →
MLB: NL Rookie of the Year

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Kalshi UK Pick
polygram.ink
 58% 42% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open on Kalshi UK →
Polymarket
polymarket.com
 58% 42% 0% Geo-blocked in US/UK/EU USDC, on-chain Open on Kalshi UK →
Kalshi
kalshi.com
 — — Up to 7% per trade US-only, KYC required USD Open on Kalshi UK →
Betfair Exchange
betfair.com
 — — 2-5% commission Full KYC from first trade GBP / EUR Open on Kalshi UK →
Manifold Markets
manifold.markets
 — — Play-money (mana) None — play-money Mana (no cash-out) Open on Kalshi UK →

Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Kalshi UK.

Active sub-markets

JJ Wetherholt58% YES42% NO
Justin Crawford0% YES100% NO
Didier Fuentes0% YES100% NO
Rhett Lowder0% YES100% NO
Ryan Waldschmidt0% YES100% NO
Robby Snelling0% YES100% NO

Market context

The MLB: NL Rookie of the Year prediction market currently prices this outcome at 58% YES. This market will resolve to the player who wins the 2026 National League Rookie of the Year award for the 2026 MLB Season. In the event of a tie, this market will resolve according to the official wi…

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, which mirrors the Polymarket order book directly.

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 Kalshi 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'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, Kalshi UK triggers a quick verification flow that finishes in minutes.
James WilliamsJames WilliamsPrediction Market AnalystandDavid ParkDavid ParkSports Data Analyst

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