Houston Astros vs. Minnesota Twins

Platform comparison

Active sub-markets

Market context

Houston Astros at Minnesota Twins is trading at 0% YES on Polymarket, meaning the USDC-settled conditional token contract on Polygon is pricing no chance of an Astros win at present. With the market tied to the final official result, any completed game outcome will decide the token’s value; if the game is postponed, it stays open until played, while a cancellation or tie would resolve 50-50 under the rules.

That zero bid is far removed from the recent baseline. In the earlier series opener on 18 May, sportsbooks had Houston around a slight away favourite, but Minnesota won 5-4 and did not cover the run line, while the total pushed at nine, according to FOX Sports. ESPN’s game listing also shows the series was level at 1-1 entering the 20 May matchup, which is the kind of context that normally keeps an MLB moneyline from collapsing to the floor unless the market has already priced in a very strong edge or some missing information.

For traders, the key catalysts are line-ups, starting pitcher confirmations and any late scratches, because those can move both the exchange price and the sportsbook market within minutes of first pitch. Recent odds pages from Action Network and Covers showed Minnesota as a small favourite for the rematch, with the home side around -105 to +106 depending on the book, so the Polymarket contract’s 0% YES reading looks heavily disconnected from the mainstream market unless there has been a pricing error or stale order book. The first reliable trigger will be official pre-game announcements ahead of the 1:40pm ET start.

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

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

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.

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.