Houston Astros vs. Minnesota Twins

Platform comparison

Active sub-markets

Market context

The Houston Astros and Minnesota Twins are scheduled to meet at Target Field on 20 May at 1:40 pm ET, with the market set to resolve on the official final result only. For a programmatic trader, the key point is that the current crowd-implied 0% YES price is not a meaningful baseball line so much as a thin-liquidity artefact: it can happen when no one has yet anchored the market, especially before line-up confirmation and with a game still hours away. In similar MLB event markets, early zeroes often correct sharply once the first verified team news lands, so the practical read is to treat the price as a placeholder rather than a probabilistic forecast.

Recent context matters here because the series has already produced live games and fresh box-score data, which algorithmic tools can ingest more reliably than sentiment. ESPN lists the series as tied 1-1 entering the 20 May game, while MLB.com’s preview and condensed-game pages confirm the matchup and indicate Houston has already shown enough offence in the series to matter for projection models. A recent MLB.com game story also notes Yordan Alvarez homered in the opener, a reminder that expected line-ups and starting pitching assignments will drive most pre-match movement. For traders using bots, the useful triggers are the official line-up posts, any late pitcher change, and whether the game stays on schedule; postponed games remain open until completed, while a cancellation or tie would resolve 50-50 under the rules.

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Methodology

This page reviews Houston Astros vs. Minnesota Twins 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

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.

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.

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.