Houston Astros vs. Detroit Tigers

Platform comparison

Market context

The Houston Astros and Detroit Tigers meet this afternoon at Comerica Park in Detroit for a 1:40 p.m. ET MLB game, with the Astros holding a 41–44 record and the Tigers at 35–48. Yesterday, the Astros rallied for an 8–6 victory over the Tigers, securing a two-run double from Isaac Paredes in the eighth inning and denying former manager AJ Hinch a milestone win [1][3]. This back-to-back matchup forms the immediate context for the current 100% crowd-implied probability favouring the Astros, a figure that mirrors historical patterns where a team winning a previous game in a short series often carries momentum into the next contest, particularly when the opponent shows defensive fragility as the Tigers have in recent outings [2].

For a power-user approaching this programmatically, the key catalysts are the starting lineups released pre-game and any late-injury updates, which can be monitored via conditional order bots that trigger on lineup confirmations [5]. The Astros’ recent surge, highlighted by their eighth-inning rally yesterday, suggests a high-probability continuation of offensive pressure, while the Tigers’ home record (23–20) offers a modest but insufficient buffer against the Astros’ away strength (21–23) [2]. Traders should watch for any weather delays at Comerica Park, as postponements would reset the settlement window, and monitor DraftKings’ prediction picks for the series finale, which currently favour the Astros as surging American League clubs collide [6]. The 100% probability implies near-certainty, but a 50–50 resolution remains possible if the game is cancelled or ends in a tie, a risk that conditional orders can mitigate by hedging on live score feeds [1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi Fees, 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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.