Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
71% | 29% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
71% | 29% | 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 |
|---|---|
| 1st 5 Innings O/U 2.5 | 71% |
| O/U 6.5 | 62% |
| 1st 5 Innings O/U 3.5 | 56% |
| Spread -1.5 | 53% |
| O/U 7.5 | 49% |
| NRFI | 45% |
| 1st 5 Innings Spread -1.5 | 44% |
| 1st 5 Innings O/U 4.5 | 43% |
| O/U 8.5 | 42% |
| Spread -2.5 | 41% |
| Kansas City Royals vs. Detroit Tigers | 30% |
| 1st 5 Innings O/U 5.5 | 30% |
| 1st 5 Innings O/U 6.5 | 21% |
| Spread -1.5 | 20% |
| Spread -2.5 | 14% |
| 1st 5 Innings Spread -1.5 | 11% |
| Extra Innings | 8% |
Market context
The Kansas City Royals face the Detroit Tigers on 24 July at 6:40 PM ET in a regular-season MLB matchup. The current crowd-implied probability of 30% for a Royals victory reflects a market expectation favouring Detroit, though the settlement window extends to 31 July to accommodate any postponements. On-chain liquidity for this market has remained modest relative to larger sports contracts, with USDC settlement denominated at standard prediction market odds.
Historical matchups between these franchises show the Tigers have held a slight edge in recent seasons, though the Royals' performance has stabilised following roster adjustments. The 30% probability sits within a reasonable range given Detroit's marginally stronger recent form, though single-game variance remains substantial. Comparable MLB markets on btc-prediction.bet have shown that crowd probabilities in the 25–35% range for road teams typically reflect genuine competitive disadvantage rather than systematic mispricing.
Traders should monitor injury reports and starting pitcher announcements through 24 July, as bullpen availability and weather conditions at Comerica Park can shift outcomes materially. Recent MLB scheduling data indicates no unusual delays affecting this fixture. Macro conditions—including broader crypto volatility affecting prediction market participation—may influence funding rates on related sports contracts, though this particular match lacks the liquidity depth to show pronounced whale positioning. Final lineups typically release 90 minutes before first pitch.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $84K.
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.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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 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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