Cleveland Guardians vs. Detroit Tigers

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians meet the Detroit Tigers in this afternoon’s MLB game, and the market is pricing Cleveland at an implied 16% chance, leaving Detroit as the clear favourite. That is a sizeable gap, so the consensus is firmly on the Tigers, with any Guardians case needing either a pitching edge, a lineup surprise, or a market misread on recent form. Cleveland have already shown they can punish Detroit, beating them 8-2 on Monday with José Ramírez driving the offence, but one result is not enough to overturn a broad favourite/underdog split at this level.

The recent frame still matters because these teams have just played each other, giving traders a cleaner read on match-up dynamics than a generic season line. ESPN’s game report from 18 May showed the Guardians taking advantage of Detroit’s struggles, while later highlights indicate the clubs have been trading outcomes in quick succession. In handicapping terms, that kind of split series often leaves value on the side that is discounted by the headline record rather than the underlying one-off matchup. If Cleveland are again being priced as a long shot despite having just landed the more convincing win, the contrarian angle is whether the market is overreacting to the Tigers’ stronger overall profile.

The key catalysts are the confirmed starting pitchers, any late line-up rest after the short turnaround, and whether either club carries bullpen fatigue from the earlier games in the series. Detroit’s official standings page and MLB’s game listings will be the cleanest pre-game references, but the biggest swing factor is still who starts and who is available behind them. If the Tigers put out a full-strength order and a rested relief group, the 16% Guardians price looks like a classic underdog spot; if Cleveland get a favourable mound match-up or Detroit shuffle the line-up, the market’s favourite lean is easier to justify.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Cleveland Guardians vs. Detroit Tigers 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 PolyGram — 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

Is this market available outside the US?

PolyGram 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 PolyGram?

Zero. PolyGram 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.