New York Yankees vs. Detroit Tigers

Platform comparison

Active sub-markets

Market context

The New York Yankees face the Detroit Tigers tonight at Comerica Park in Detroit, with first pitch scheduled for 6:10pm ET. Polymarket prices the Yankees win at 13% YES, a stark divergence from traditional moneylines where New York sits as a -133 favourite, implying roughly a 57% win probability. This on-chain contract, settled in USDC on the Polygon network via conditional tokens, reflects a market that has either mispriced the event or is betting heavily on a specific, low-probability outcome like a pitcher’s duel or an early injury.

Historically, such probability gaps between prediction markets and bookmakers often precede significant upsets or unusual game conditions. In comparable 2024 MLB cases, when Polymarket prices a favourite below 20% while bookmakers hold them above 50%, the underdog frequently wins due to late pitching changes or weather disruptions. Traders should scrutinise whether the 13% price accounts for a known dependency, such as the Yankees’ ace being unavailable, which standard odds may not yet reflect.

Key catalysts include the official starting lineups, which typically drop 30 minutes before first pitch, and any in-game injury reports. Recent coverage from Sportsline notes the over/under is set at 8 runs, suggesting a low-scoring affair is expected, which could amplify the impact of a single error or defensive lapse [1]. Traders must monitor the live feed for the Yankees’ bullpen usage, as a premature exit by their starter could invalidate the bookmaker’s implied probability and validate the Polymarket’s bearish stance.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track New York Yankees vs. Detroit Tigers 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

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 does it cost to trade on Kalshi UK?

Zero. Kalshi 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, Kalshi 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.