Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
80% | 20% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
80% | 20% | 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 |
|---|---|
| Spread -1.5 | 80% |
| Spread -9.5 | 57% |
| Sabrina Ionescu: Assists O/U 5.5 | 54% |
| Spread -10.5 | 54% |
| Breanna Stewart: Points O/U 21.5 | 52% |
| Sabrina Ionescu: Points O/U 19.5 | 52% |
| Spread -11.5 | 50% |
| Jonquel Jones: Points O/U 13.5 | 49% |
| O/U 176.5 | 48% |
| Breanna Stewart: Assists O/U 3.5 | 47% |
| Jonquel Jones: Points O/U 14.5 | 45% |
| O/U 179.5 | 44% |
| O/U 178.5 | 43% |
| Pauline Astier: Assists O/U 2.5 | 36% |
| O/U 183.5 | 35% |
| Jonquel Jones: Rebounds O/U 8.5 | 32% |
| Breanna Stewart: Rebounds O/U 8.5 | 28% |
| Sabrina Ionescu: Rebounds O/U 4.5 | 28% |
| Las Vegas Aces vs. New York Liberty | 19% |
| Jackie Young: Assists O/U 5.5 | 1% |
| A'ja Wilson: Points O/U 25.5 | 0% |
| Jackie Young: Points O/U 18.5 | 0% |
| Chelsea Gray: Points O/U 11.5 | 0% |
| A'ja Wilson: Rebounds O/U 9.5 | 0% |
| Jackie Young: Rebounds O/U 4.5 | 0% |
| Chelsea Gray: Rebounds O/U 2.5 | 0% |
| Chelsea Gray: Assists O/U 6.5 | 0% |
| A'ja Wilson: Assists O/U 3.5 | 0% |
| Jackie Young: Assists O/U 6.5 | 0% |
Market context
The Las Vegas Aces are due to face the New York Liberty in a regular-season WNBA game at Barclays Center, with the settlement keyed strictly to the final score including overtime. The current crowd-implied 19% YES price implies the market is leaning towards the Aces only modestly, but the contract will not settle until the game is completed, and a postponement would simply keep it open rather than trigger a resolution.[19][11]
Recent comparable meetings give this price some context. New York beat Las Vegas 87-76 on 23 June, while Las Vegas answered with a 104-99 home win on 30 July, and the split shows how thin the matchup has been between two teams that have both already traded high-leverage wins this season.[1][7] Season-level metrics also point to a fairly balanced contest: ESPN’s game preview lists the Aces at 91.8 points per game and the Liberty at 90.1, with New York’s field-goal rate near 46% and Las Vegas near 49%.[2][11]
The main catalysts are roster availability, late schedule effects, and any pre-game injury or rest news, because those can move a game between near-pick’em and a clearer favourite in a single session. CBS Sports’ preview notes Las Vegas played at Indiana on 6 August and then lost at Minnesota on 8 August, while New York entered on a three-game winning streak, so fatigue and short turnaround are relevant to how the market prices the matchup before tip-off.[11] On-chain, the contract is a simple binary exposure settled in USDC, so traders are effectively expressing a view on a single final result rather than a margin or totals angle.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $288K.
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.
UK Frequently Asked Questions
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade Las Vegas Aces vs. New York Liberty on BTC Prediction
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