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 |
|---|---|
| 1st 5 Innings O/U 2.5 | 100% |
| 1st 5 Innings O/U 4.5 | 100% |
| 1st 5 Innings O/U 3.5 | 99% |
| 1st 5 Innings Spread -1.5 | 96% |
| Boston Red Sox vs. Chicago White Sox | 95% |
| 1st 5 Innings Spread -2.5 | 95% |
| O/U 6.5 | 92% |
| Spread -1.5 | 90% |
| Spread -2.5 | 90% |
| O/U 7.5 | 85% |
| O/U 8.5 | 61% |
| 1st 5 Innings O/U 5.5 | 60% |
| Spread -4.5 | 51% |
| 1st 5 Innings O/U 6.5 | 50% |
| Spread -3.5 | 50% |
| O/U 9.5 | 48% |
| Spread -5.5 | 46% |
| O/U 10.5 | 25% |
| Spread -6.5 | 17% |
| O/U 11.5 | 17% |
| Extra Innings | 5% |
| Spread -1.5 | 3% |
| 1st 5 Innings Spread -1.5 | 3% |
| 1st 5 Innings Spread -2.5 | 3% |
| NRFI | 0% |
Market context
The Boston Red Sox face the Chicago White Sox at Rate Field on 8 July 2026, with first pitch set for 7:40 pm ET. On Polymarket, this contract trades at 93% YES for a Boston win, implying near-certainty despite traditional bookmakers favouring the White Sox at -120 and some models predicting a White Sox victory with 56% confidence[1]. This divergence mirrors past MLB markets where on-chain sentiment outpaced conventional odds, often driven by conditional token liquidity and USDC depth on Polygon rather than abstract win probabilities. Historical cases show that when crowd-implied probabilities exceed 90% against the moneyline favourite, the outcome frequently hinges on late-injury news or pitching changes, not pre-game form[2].
Traders must monitor starting pitcher confirmations and any late roster updates, as these are the primary catalysts that could shift the 93% probability. The Red Sox enter with a road win streak, while the White Sox sit first in the AL East with a 47–43 record, yet the over/under is set at 8 runs, suggesting a high-scoring contest that could amplify volatility[3][4]. Recent analysis from Action Network highlights Boston as the best bet on the moneyline at -102, reinforcing the on-chain bullish stance[2]. Watch for announcements from MLB or team sources before 7 pm ET, as any delay or cancellation would keep the market open until completion, while a tie or full cancellation resolves 50–50 per the contract terms.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $479K.
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.
- 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 Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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: Boston Red Sox vs. Chicago White Sox on Polymarket Qué Es
Live order book, 0% fees, USDC settlement in seconds.
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