Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NRFI | 100% |
| O/U 8.5 | 100% |
| 1st 5 Innings Spread -1.5 | 100% |
| 1st 5 Innings Spread -2.5 | 100% |
| 1st 5 Innings O/U 2.5 | 100% |
| 1st 5 Innings O/U 3.5 | 100% |
| 1st 5 Innings O/U 4.5 | 100% |
| 1st 5 Innings O/U 5.5 | 100% |
| 1st 5 Innings O/U 6.5 | 100% |
| O/U 7.5 | 100% |
| O/U 6.5 | 100% |
| O/U 10.5 | 100% |
| O/U 11.5 | 100% |
| O/U 12.5 | 100% |
| O/U 13.5 | 89% |
| Spread -1.5 | 81% |
| Spread -2.5 | 65% |
| O/U 14.5 | 57% |
| Extra Innings | 50% |
| O/U 19.5 | 50% |
| Spread -4.5 | 49% |
| O/U 16.5 | 48% |
| O/U 18.5 | 48% |
| O/U 15.5 | 45% |
| O/U 17.5 | 41% |
| Spread -3.5 | 37% |
| Pittsburgh Pirates vs. New York Yankees | 7% |
| Spread -1.5 | 5% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings Spread -2.5 | 0% |
Market context
The Pittsburgh Pirates face the New York Yankees in a scheduled MLB game on 20 July at 7:05 PM ET, with the market currently pricing a Pirates victory at just 7% implied probability. This steep discount reflects the Yankees’ dominant historical record against the Pirates, who have lost 14 of 39 meetings overall, holding a 64.1% win rate in this fixture [1]. The disparity echoes past clashes such as the 1927 World Series, where the Yankees swept the Pirates 4–0 without conceding a game [3].
Comparable cases in MLB prediction markets show that when a team with a 60%+ historical win rate faces a lower-tier opponent, the implied probability often stabilises between 65–75% for the favourite, leaving the underdog at 25–35%. The current 7% figure suggests either a significant mismatch in current form, roster strength, or pitching matchups not fully captured in long-term history. Traders should monitor pre-game lineups, starting pitcher announcements, and any late injury reports, as these can shift odds sharply within hours of the game [2].
For crypto-native traders on btc-prediction.bet, the contract settles in USDC with on-chain resolution tied to official MLB statistics. While this is a sports event, macro BTC/ETH volatility or whale flows into short-dated sports contracts could influence liquidity and funding rates. Watch exchange spot activity and funding rate shifts in the 24 hours before settlement, as these often signal whale positioning ahead of high-impact games.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $853K.
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 — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
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
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
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