Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NRFI | 100% |
| 1st 5 Innings O/U 2.5 | 100% |
| 1st 5 Innings O/U 4.5 | 82% |
| O/U 7.5 | 80% |
| 1st 5 Innings O/U 3.5 | 75% |
| O/U 8.5 | 71% |
| 1st 5 Innings O/U 5.5 | 68% |
| Spread -1.5 | 67% |
| O/U 9.5 | 59% |
| Spread -2.5 | 56% |
| 1st 5 Innings O/U 6.5 | 54% |
| 1st 5 Innings Spread -1.5 | 50% |
| 1st 5 Innings Spread -1.5 | 50% |
| Extra Innings | 50% |
| O/U 10.5 | 50% |
| Spread -3.5 | 50% |
| Houston Astros vs. Chicago White Sox | 19% |
| Spread -1.5 | 11% |
| Spread -2.5 | 7% |
Market context
The Astros travel to Chicago on 24 July for a regular-season matchup against the White Sox, with Polymarket currently pricing a Houston victory at 22 per cent. This implies roughly 3.5-to-1 odds against the Astros, reflecting either substantial White Sox backing or a meaningful gap in perceived team strength at settlement time. The conditional token structure on Polygon means traders holding YES positions benefit from any Houston win, whilst NO holders capture value if Chicago prevails or the game resolves 50-50 under cancellation rules.
Houston enters July as a contender in the AL West, whilst Chicago has languished near the bottom of the AL Central for much of 2026. Historical matchups between these clubs show the Astros winning roughly 55 per cent of regular-season contests over the past five seasons, yet single-game outcomes remain volatile. The 22 per cent probability suggests the market is pricing in either specific pitching disadvantages for Houston that day, recent form deterioration, or injury concerns not yet widely reported.
Traders should monitor starting pitcher assignments and any roster moves announced before first pitch. Weather conditions at Guaranteed Rate Field—particularly wind direction affecting fly balls—can shift run-scoring expectations. Recent injury reports from both clubs' official sources and any late-inning bullpen availability will influence how the probability drifts through the settlement window. The 2026-07-31 deadline provides a week buffer beyond game day for makeup scheduling if postponement occurs.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $489K.
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 Polymarket Qué Es, 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?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. 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.
- 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.
Trade Pronóstico: Houston Astros vs. Chicago White Sox on Polymarket Qué Es
Live order book, 0% fees, USDC settlement in seconds.
Open live market →