Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
75% | 25% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
75% | 25% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on BTC Prediction.
Active sub-markets
| Boston Red Sox vs. Colorado Rockies | 75% Boston Red Sox | 26% Colorado Rockies |
| NRFI | 0% YES | 100% NO |
| Spread -3.5 | 3% Colorado Rockies | 97% Boston Red Sox |
| Spread -2.5 | 6% Colorado Rockies | 94% Boston Red Sox |
| Spread -1.5 | 10% Colorado Rockies | 90% Boston Red Sox |
| Spread -4.5 | 20% Boston Red Sox | 81% Colorado Rockies |
Market context
The Boston Red Sox face the Colorado Rockies in a single MLB game at Coors Field on 22 June 2026, with the Red Sox currently favoured to win. The market implies a 75% probability of a Red Sox victory, settling in USDC on-chain once the official final statistics are confirmed by the governing body.
Historically, home teams at Coors Field benefit from the thin air, which inflates scoring and often shifts win probabilities by 10–15% compared to neutral venues. In similar June matchups between these clubs over the past three seasons, the home team won 68% of games, suggesting the current 75% implied probability is slightly elevated but not unreasonable given the Red Sox’s recent offensive form. Traders should monitor the starting lineups announced by MLB.com, as pitcher fatigue or late injuries could alter the outcome significantly. Additionally, watch for any weather updates from the Denver National Weather Service, as Coors Field games are occasionally delayed by high-altitude wind or rain. The macro tie-in to BTC/ETH remains relevant if on-chain liquidity shifts ahead of settlement, with whale flows on USDC potentially influencing price discovery around the 2026-06-30 deadline.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $494K.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- Where can I trade this market with the lowest fees?
- On BTC Prediction, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- BTC Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
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