Cleveland Guardians vs. Detroit Tigers

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians and Detroit Tigers are scheduled to play in Detroit on 21 May at 1:10pm ET, with the market settling on the winner once the official result is recorded. The current 16% yes price implies the Guardians are a clear outsider, and that is broadly consistent with how this series has gone in the last few days: Cleveland won 8-2 on Monday and 3-2 in ten innings on Wednesday, which shows the matchup can tighten quickly even when one side is priced as the weaker team.

For traders, the main catalysts are the announced starters, any line-up changes, and the confirmed status of the game itself, since a postponement would keep the market open until completion and a cancellation or tie would lead to a 50-50 resolution under the rules. Recent recaps from CBS Sports and ESPN show Cleveland’s offence has been productive against Detroit, with José Ramírez central in both wins, so any late news on his availability or other key bats matters. Under German GlüStV, access is more tightly regulated than in some other jurisdictions, while US CFTC reach can still matter where a platform is deemed to be operating into the US. In practical terms, “no-KYC up to $1,500” means a user may be able to trade small balances without full identity checks, but it does not remove jurisdictional or platform-based restrictions on whether this specific market is available.

Sources: 1 · 2 · 3 · 4 · 5

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 PolyGram, which mirrors the Polymarket order book directly.

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'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 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 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.