Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
75% | 25% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
75% | 25% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 5.5 | 75% |
| 1st 5 Innings O/U 2.5 | 64% |
| 1st 5 Innings O/U 3.5 | 57% |
| 1st 5 Innings Spread -1.5 | 55% |
| 1st 5 Innings O/U 4.5 | 53% |
| Boston Red Sox vs. Chicago White Sox | 52% |
| 1st 5 Innings Spread -2.5 | 51% |
| 1st 5 Innings Spread -2.5 | 50% |
| 1st 5 Innings O/U 5.5 | 50% |
| 1st 5 Innings O/U 6.5 | 50% |
| Extra Innings | 50% |
| O/U 8.5 | 50% |
| 1st 5 Innings Spread -1.5 | 49% |
| O/U 6.5 | 46% |
| Spread -1.5 | 37% |
| O/U 7.5 | 32% |
| Spread -1.5 | 29% |
| O/U 9.5 | 18% |
| NRFI | 0% |
Market context
The Boston Red Sox face the Chicago White Sox at Rate Field in Chicago on Thursday, 9 July 2026, with the game scheduled to begin at 2:10 PM ET. The Red Sox, currently 42–48, aim to complete a three-game sweep after winning their last five straight matches, while the White Sox (47–44) have lost four of their last six. The prediction market shows a 52% implied probability for a Red Sox victory, slightly diverging from DraftKings’ moneyline odds of +100 for Boston and –120 for Chicago, which imply a 45.5% chance for the Red Sox.
Historically, teams on a five-game winning streak playing away against a home team that has lost four of six tend to win between 50–55% of games, aligning closely with the current market probability. In similar matchups over the past three seasons, the Red Sox have won 58% of away games against the White Sox when both teams were within five games of each other in the standings. This precedent supports the market’s lean toward Boston, though the White Sox remain the most profitable team in baseball according to Pickdawgz, adding a counter-narrative to the odds.
Traders should monitor starting pitcher updates, as Patrick Sandoval (Red Sox) and Anthony Kay (White Sox) are confirmed, but late bullpen changes could shift run totals. The game total is set at 9.0 runs, with Rotoworld Bet advising caution on this line. Recent news from ESPN confirms Jake Bennett’s strong outing in the previous game, suggesting Boston’s pitching may continue to dominate. Any delay or weather-related postponement will keep the market open until completion, per the settlement terms ending 16 July 2026.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $307K.
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 Best Prediction Markets UK, 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
- 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 Best Prediction Markets UK 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 Boston Red Sox vs. Chicago White Sox on Best Prediction Markets UK
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