Detroit Tigers vs. Cleveland Guardians

Platform comparison

Active sub-markets

Market context

The Detroit Tigers face the Cleveland Guardians on 12 June at 7:10PM ET in a regular-season MLB matchup. The settlement window extends to 19 June, allowing for postponements or rescheduling within that seven-day buffer. Current pricing across major platforms reflects the uncertainty inherent in single-game baseball outcomes, though the 0% implied probability on this particular book suggests either extreme early positioning or a data lag in the aggregation.

Historical precedent for Tigers–Guardians fixtures shows competitive balance, with both franchises occupying similar playoff contention tiers in recent seasons. The Guardians' 2023 World Series appearance elevated their perceived strength, yet the Tigers have invested heavily in roster construction through 2024–2025. Single-game resolution probabilities in MLB typically cluster between 45–55% for evenly matched opponents when accounting for home-field advantage, weather, and starting pitcher quality. Kalshi's fixed decimal-odds format and Betfair's traditional fractional odds will display these probabilities differently, whilst Smarkets' commission structure may compress the spread between backing and laying prices compared to Polymarket's fee model.

Traders should monitor starting pitcher announcements, which typically occur 24–48 hours before game time, as these substantially shift win probabilities. Injury reports from both organisations, particularly regarding key position players or relief arms, can shift market consensus by 2–3 percentage points. Weather conditions at the venue and any schedule adjustments due to prior postponements will also influence late-market movement. The extended settlement window accommodates weather delays common to June baseball, reducing the likelihood of forced 50–50 resolution.

Methodology

This page compares Detroit Tigers vs. Cleveland Guardians specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). Polymarket Alternative routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

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.

What does it cost to trade on Polymarket Alternative?

Zero. Polymarket Alternative 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.

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.