Cleveland Guardians vs. Detroit Tigers

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians meet the Detroit Tigers in Detroit on 21 May, with Cleveland priced as the away side despite only a 16% crowd-implied chance. That sort of number implies a strong home-favourite lean, but baseball moneylines can move quickly on the back of starting pitcher confirmations, line-up absences and late weather updates. Cleveland have already taken two games in the set, including an 8-2 win on 18 May, while Detroit’s recent form has been mixed enough to keep the market anchored to the Tigers unless a clear edge emerges.

For context, low-probability away winners in MLB are not rare, but they usually depend on a pitching mismatch rather than broader team strength. The current price suggests traders are leaning on Detroit’s home field and recent consistency rather than on the series score alone. MLB.com’s standings show the Guardians at 29-22 and the Tigers at 28-23, which is close on record even if the market is not treating the teams as equals. Recent ESPN coverage of the series also points to Cleveland’s offence having the better of the matchup so far, with José Ramírez driving the 8-2 result.

The main catalyst to watch is the starting pitcher and whether either club makes a late line-up change after the final pre-game injury reports. If Detroit confirm a stronger starter or Cleveland rest key bats, the market should tighten quickly; if the same rotation shape holds, the price will mostly reflect the home-team edge already built in. With the game scheduled for 1:10 pm ET, any weather delay or postponement would matter only if it pushes the contest beyond the settlement window, since a completed game will resolve on the official final score.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Cleveland Guardians vs. Detroit Tigers plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, 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.

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, PolyGram 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.