Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
48% | 52% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
48% | 52% | 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 |
|---|---|
| Kyle Schwarber | 48% |
| Yordan Alvarez | 21% |
| Junior Caminero | 15% |
| Shea Langeliers | 5% |
| Nick Kurtz | 3% |
| Munetaka Murakami | 2% |
| Elly De La Cruz | 2% |
| Aaron Judge | 1% |
| Shohei Ohtani | 1% |
| Matt Olson | 1% |
| James Wood | 1% |
| Ben Rice | 1% |
| Cal Raleigh | 0% |
| Eugenio Suarez | 0% |
| Juan Soto | 0% |
| Pete Alonso | 0% |
| Rafael Devers | 0% |
| George Springer | 0% |
| Giancarlo Stanton | 0% |
| Mike Trout | 0% |
| Manny Machado | 0% |
| Jordan Walker | 0% |
| Brandon Lowe | 0% |
| Sal Stewart | 0% |
| CJ Abrams | 0% |
| Player A | 0% |
| Player B | 0% |
| Player C | 0% |
| Player D | 0% |
| Player E | 0% |
| Player F | 0% |
| Player G | 0% |
| Player H | 0% |
| Player I | 0% |
| Player J | 0% |
| Player K | 0% |
| Player L | 0% |
| Player M | 0% |
| Player N | 0% |
| Player O | 0% |
| Player P | 0% |
| Player Q | 0% |
| Player R | 0% |
| Player S | 0% |
| Player T | 0% |
| Player U | 0% |
| Player V | 0% |
| Player W | 0% |
| Player X | 0% |
| Player Y | 0% |
| Player Z | 0% |
| Player AA | 0% |
| Player AB | 0% |
| Player AC | 0% |
| Player AD | 0% |
| Player AE | 0% |
| Player AF | 0% |
| Player AG | 0% |
| Player AH | 0% |
| Player AI | 0% |
| Player AJ | 0% |
| Player AK | 0% |
| Player AL | 0% |
| Player AM | 0% |
| Player AN | 0% |
| Player AO | 0% |
| Player AP | 0% |
| Player AQ | 0% |
| Player AR | 0% |
| Player AS | 0% |
| Player AT | 0% |
| Player AU | 0% |
| Player AV | 0% |
| Player AW | 0% |
| Player AX | 0% |
| Player AY | 0% |
| Player AZ | 0% |
| Player BA | 0% |
| Player BB | 0% |
| Player BC | 0% |
| Player BD | 0% |
| Player BE | 0% |
| Player BF | 0% |
| Player BG | 0% |
| Player BH | 0% |
| Player BI | 0% |
| Player BJ | 0% |
| Player BK | 0% |
| Player BL | 0% |
| Player BM | 0% |
| Player BN | 0% |
| Player BO | 0% |
| Player BP | 0% |
| Player BQ | 0% |
| Player BR | 0% |
| Player BS | 0% |
| Player BT | 0% |
| Player BU | 0% |
| Player BV | 0% |
| Player BW | 0% |
| Player BX | 0% |
| Other | 0% |
Market context
Based on real-money crowd forecasting, mlb: home runs leader stands at 48% likelihood according to current market consensus. This market will resolve according to the player who records the most home runs during the 2026 Major League Baseball regular season. In the event of a tie, this market will resol…
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.
- 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.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- 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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