Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
74% | 26% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
74% | 26% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 1st 5 Innings O/U 2.5 | 74% |
| O/U 6.5 | 67% |
| 1st 5 Innings O/U 3.5 | 62% |
| O/U 7.5 | 56% |
| Boston Red Sox vs. Pittsburgh Pirates | 54% |
| 1st 5 Innings O/U 4.5 | 51% |
| NRFI | 48% |
| O/U 8.5 | 47% |
| Spread -1.5 | 42% |
| 1st 5 Innings O/U 5.5 | 37% |
| 1st 5 Innings Spread -1.5 | 33% |
| Spread -2.5 | 32% |
| Spread -1.5 | 30% |
| 1st 5 Innings O/U 6.5 | 28% |
| 1st 5 Innings Spread -1.5 | 27% |
| Spread -2.5 | 20% |
| Extra Innings | 10% |
Market context
The Red Sox travel to Pittsburgh on 14 August for a regular-season matchup against the Pirates, with the conditional tokens currently pricing Boston's victory at 54% on Polygon. This reflects modest favouritism for the visiting side, though the spread sits within the range where either outcome commands meaningful probability mass. Settlement occurs seven days after the scheduled 6:40PM ET first pitch, allowing time for any postponements to be resolved before the 21 August deadline.
Historical matchups between these franchises show the Red Sox hold a structural advantage in head-to-head records over recent seasons, though August baseball introduces volatility that can compress typical win-probability differentials. The Pirates' home-field positioning and late-summer roster configurations have occasionally produced upset outcomes, particularly when Boston faces bullpen fatigue or lineup inconsistency. Current divisional standings and wild-card positioning will influence both teams' strategic deployment of relief arms, a factor that shapes single-game outcomes more substantially than preseason projections suggest.
Traders should monitor starting pitcher assignments and any roster moves announced in the days preceding the fixture. Injury reports affecting either team's offensive depth or bullpen availability can shift conditional token pricing meaningfully. Weather conditions at PNC Park—particularly wind direction affecting fly-ball carry—warrant attention given August's atmospheric variability in Pittsburgh. The USDC settlement mechanism on Polygon remains active through the window, with the 50-50 resolution clause applying only if the game is cancelled without a scheduled make-up date or concludes in a tie, an outcome historically rare in modern MLB play.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $163K.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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 PolyGram. 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Boston Red Sox vs. Pittsburgh Pirates on PolyGram
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