Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
98% | 2% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
98% | 2% | 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 |
|---|---|
| Atlanta Dream vs. Connecticut Sun | 98% |
| Spread -9.5 | 85% |
| Spread -10.5 | 81% |
| Rhyne Howard: Points O/U 17.5 | 51% |
| Naz Hillmon: Rebounds O/U 3.5 | 51% |
| Rhyne Howard: Points O/U 16.5 | 51% |
| Allisha Gray: Points O/U 18.5 | 50% |
| Angel Reese: Points O/U 17.5 | 50% |
| Angel Reese: Rebounds O/U 13.5 | 50% |
| Allisha Gray: Rebounds O/U 2.5 | 50% |
| Angel Reese: Assists O/U 2.5 | 50% |
| Allisha Gray: Assists O/U 2.5 | 50% |
| Jordin Canada: Points O/U 11.5 | 50% |
| Diamond Miller: Points O/U 9.5 | 50% |
| Naz Hillmon: Points O/U 8.5 | 50% |
| Rhyne Howard: Rebounds O/U 3.5 | 50% |
| Jordin Canada: Rebounds O/U 3.5 | 50% |
| Diamond Miller: Rebounds O/U 2.5 | 50% |
| Jordin Canada: Assists O/U 8.5 | 50% |
| Leïla Lacan: Assists O/U 4.5 | 50% |
| Rhyne Howard: Assists O/U 3.5 | 50% |
| Brittney Griner: Assists O/U 1.5 | 50% |
| Angel Reese: Points O/U 16.5 | 50% |
| Angel Reese: Rebounds O/U 12.5 | 50% |
| Jordin Canada: Assists O/U 7.5 | 50% |
| Angel Reese: Points O/U 15.5 | 50% |
| O/U 172.5 | 47% |
| O/U 173.5 | 43% |
| O/U 174.5 | 39% |
Market context
The underlying event is the WNBA meeting between Atlanta and Connecticut, with the market settling on the team that wins the final score, including overtime, or 50-50 only if the fixture is ultimately cancelled. With crowd-implied probability at 98% for Atlanta, the contract is already pricing in a very one-sided outcome rather than a live coin-flip, which is consistent with a market that can move quickly once line-ups are confirmed and the game tips off.
The current read is framed by a strong recent head-to-head and a lopsided season profile. Atlanta beat Connecticut 91-75 in the earlier meeting this season, and that was the Dream’s fourth straight win in the series.[2][4] On the broader form line, Atlanta entered the game 20-12 and had won seven of its last nine, while Connecticut was 8-23 and had gone 2-11 against Eastern Conference opponents.[3][6] That gap matters for interpretation: a 98% implied win probability is much higher than a typical pre-match favourite edge, so it is best read as the market assuming both the form differential and the matchup history are reliable, not as evidence of certainty.
For traders, the main catalysts are team availability, any late league schedule changes, and whether the game proceeds on time rather than being postponed or cancelled, because the contract remains open until completion and only resolves 50-50 if there is no make-up game.[Market description] The settlement window runs to 2026-08-13T23:00:00Z, so any delay decision close to tip-off would matter more than ordinary in-game volatility.[Market description] In crypto terms, the on-chain angle is mostly settlement mechanics: a high-probability event can still trade around USDC liquidity and broader risk appetite, but there is no obvious BTC or ETH macro linkage unless market-wide moves affect speculative demand across prediction markets.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $249K.
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
- 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.
- 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.
- 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%.
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