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 Spread -1.5 | 100% |
| 1st 5 Innings O/U 2.5 | 100% |
| Chicago White Sox vs. Tampa Bay Rays | 96% |
| Spread -1.5 | 92% |
| Spread -2.5 | 86% |
| O/U 5.5 | 83% |
| Spread -4.5 | 60% |
| O/U 6.5 | 59% |
| Extra Innings | 50% |
| O/U 7.5 | 41% |
| Spread -3.5 | 41% |
| Spread -5.5 | 32% |
| O/U 8.5 | 28% |
| O/U 9.5 | 19% |
| Spread -1.5 | 2% |
| Spread -2.5 | 1% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings O/U 3.5 | 0% |
| 1st 5 Innings O/U 4.5 | 0% |
| 1st 5 Innings O/U 5.5 | 0% |
| 1st 5 Innings O/U 6.5 | 0% |
Market context
Polymarket is pricing this Chicago White Sox at Tampa Bay Rays contract at **96% YES** on USDC-settled, Polygon-based conditional tokens, so the market is effectively treating a White Sox win as the overwhelmingly likely outcome rather than a close toss-up. For a trader, that means the implied downside sits mainly in late information risk: line-ups, a possible pitching change, weather, or an in-play suspension that pushes the result into the market’s special settlement rules.
That 96% figure is far above the kind of moneyline pricing seen in recent White Sox–Rays meetings, where sportsbooks had Tampa Bay as the favourite but not at anything like a near-lock level. Recent comparable games between these clubs have still produced ordinary baseball variance: the Rays beat the White Sox 5–3 on 16 April 2026, and previews for the late-July series priced Tampa Bay around the mid-100s on the moneyline rather than at extreme levels.[1][2][4][15] In other words, the current Polymarket price is not just a view on team quality; it also reflects the contract’s binary settlement structure and the fact that a postponed game stays open until completion, while an abandonment or tie resolves 50-50.
The main catalysts to watch are official line-up cards, any announced starter change, and the final status of the scheduled August 2 game, because those are the inputs that can still move a near-certain market. ESPN and other odds boards showed the market had already been trading around the same matchup late in July, with Tampa Bay generally favoured, so a fresh injury report or weather-related delay would matter more here than a routine pre-game odds drift.[10][12][16] For Polymarket users, the relevant mechanism is simple: the contract pays out according to the official result of the MLB game, with settlement governed by the event’s final recognised statistics rather than the pre-game moneyline.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $280K.
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
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 Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- 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: Chicago White Sox vs. Tampa Bay Rays on Polymarket Qué Es
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