Cleveland Guardians vs. Houston Astros

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians and Houston Astros are set for a standard MLB regular-season game at Daikin Park, and the live pricing across books points to Houston as a modest home favourite rather than a near-lock. FanDuel has Houston at -136 with Cleveland +116, ESPN shows -132, and other posted lines have sat around -160 to +132, so the sportsbook consensus still favours the Astros but not by a wide margin.[1][2][3] Against that backdrop, a 0% YES prediction-market price is a clear outlier: it implies the contract is being treated as effectively impossible, while the cash market says Cleveland still has a material, if smaller, win chance.

Historical read-through matters here because MLB moneylines in the -130 to -160 range typically translate into something like a 56% to 62% implied win probability before vig, which is much closer to the books’ view than to a zero-priced contract.[1][2][3] FanDuel’s own model projection has Houston winning 54.9% of the time, reinforcing that analysts are not pricing this as a blowout or a settled outcome.[1] For comparison purposes, the prediction market is currently much further from the sportsbook consensus than the books are from each other, which is the kind of divergence traders usually watch for when contract prices lag late lineup or pitching information.

The main catalysts are the confirmed starting pitchers, any late scratches, and whether the game proceeds as scheduled, because postponement keeps the market open until completion while a cancellation or tie would force a 50-50 resolution under the rules. Totals have been posted at 8.5 across major books, which suggests a fairly ordinary run environment rather than a game shaped by unusual weather or extreme scoring expectations.[1][3][5][6] If a line move develops near first pitch, it will most likely come from lineup releases or a late change in availability rather than from schedule risk, since the contest is already on the board and trading remains open.[6]

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 Best Prediction Markets, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Best Prediction Markets, 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?

Best Prediction Markets 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.

What does it cost to trade on Best Prediction Markets?

Zero. Best Prediction Markets 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.