Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on BTC Prediction.
Active sub-markets
| Indiana Fever vs. PortlandFire | 0% YES | 100% NO |
| Spread -9.5 | 0% YES | 100% NO |
| O/U 175.5 | 100% YES | 0% NO |
| Spread -10.5 | 0% YES | 100% NO |
| O/U 174.5 | 100% YES | 0% NO |
| Spread -11.5 | 0% YES | 100% NO |
Market context
The Indiana Fever face the Portland Fire in a WNBA regular-season matchup on 30 May at 8:00 PM ET, with settlement occurring the following day. The current crowd-implied probability of 0% YES reflects either extreme confidence in a Portland victory or minimal liquidity in the order book at present. USDC settlement will execute once the final score is confirmed and the game is either completed or officially cancelled; postponement triggers an extension of the market window rather than early resolution.
Historical precedent suggests that WNBA regular-season games rarely cancel outright without rescheduling, making the 50-50 cancellation clause a low-probability tail event. Indiana finished the 2024 season with a 20–20 record and has shown improvement in roster depth, whilst Portland has maintained competitive consistency. The zero probability assigned here likely reflects either a data lag in the market feed or a genuine absence of backing for an Indiana victory at the current ask price, rather than fundamental certainty about the outcome.
Traders should monitor official WNBA injury reports and roster updates through to game time, particularly for key players on either roster. Weather and venue logistics rarely affect indoor WNBA games, but travel delays or last-minute scheduling changes can surface via ESPN or the league's official channels. Funding rates on related sports derivatives and broader crypto market volatility—particularly BTC and ETH spot prices—have shown correlation with retail participation in prediction markets; elevated volatility may draw fresh liquidity into this market and shift the probability away from the current extreme.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $281K.
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 — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
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
- Where can I trade this market with the lowest fees?
- On BTC Prediction, which mirrors the Polymarket order book at 0% fees. 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 it cost to trade on BTC Prediction?
- Zero. BTC Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, BTC Prediction triggers a quick verification flow that finishes in minutes.
- 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.
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