Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
79% | 21% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
79% | 21% | 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 | 79% |
| O/U 5.5 | 68% |
| 1st 5 Innings O/U 3.5 | 65% |
| O/U 6.5 | 57% |
| 1st 5 Innings O/U 5.5 | 54% |
| 1st 5 Innings O/U 6.5 | 52% |
| 1st 5 Innings Spread -1.5 | 50% |
| 1st 5 Innings Spread -1.5 | 50% |
| Extra Innings | 50% |
| O/U 7.5 | 43% |
| Pittsburgh Pirates vs. Milwaukee Brewers | 42% |
| Spread -1.5 | 35% |
| O/U 8.5 | 35% |
| Spread -1.5 | 28% |
| 1st 5 Innings O/U 4.5 | 27% |
| Spread -2.5 | 23% |
| Spread -2.5 | 17% |
| NRFI | 0% |
Market context
Polymarket is pricing the Pirates at **44%** on the yes side for a contract settled by the official result of the game in Milwaukee, with the position held in USDC on Polygon through conditional tokens. That implies a slight Brewers lean, but not a strong one, and the market is still close enough that a single lineup change, late pitching adjustment, or weather delay can move it materially before first pitch.
The current number sits in the middle of a split recent history. Pittsburgh took the opener of this series 4-3 on 3 August, extending a season pattern that has leaned Pirates-heavy despite Milwaukee’s stronger overall record and divisional form.[2][3] At the same time, Milwaukee’s wider body of work remains sturdier: ESPN listed the Brewers at 97-65 on 5 August, while CBS noted they have been 19-10 against division rivals even as they were just 1-5 against Pittsburgh entering the series.[4][3] That makes 44% easier to read as a market discount on the Brewers’ overall quality rather than a pure head-to-head projection.
For traders, the main catalysts are the confirmed starter, any late rest decisions, and whether the game is completed on schedule, because postponement keeps the contract open until the make-up date while cancellation or a tie would settle 50-50.[18] The sharpest inputs will be official team line-ups, bullpen availability after the 4-3 game, and any scoreboard-friendly update from MLB’s game feed close to first pitch.[1][18] If the market is trading near 44%, any unexpected pitching assignment or scratch can matter more than the broader season record, because the on-chain price is only the crowd’s live estimate of the single-game win probability.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $655K.
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 PolyGram, which mirrors the Polymarket order book directly.
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's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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 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 Pittsburgh Pirates vs. Milwaukee Brewers on PolyGram
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