Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
68% | 32% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
68% | 32% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Kelsey Mitchell: Rebounds O/U 1.5 | 68% |
| Indiana Fever vs. Dallas Wings | 61% |
| Caitlin Clark: Rebounds O/U 3.5 | 55% |
| Spread -2.5 | 54% |
| Aliyah Boston: Rebounds O/U 8.5 | 54% |
| Jessica Shepard: Assists O/U 4.5 | 54% |
| Aliyah Boston: Assists O/U 2.5 | 54% |
| Caitlin Clark: Assists O/U 8.5 | 53% |
| Paige Bueckers: Rebounds O/U 3.5 | 52% |
| Paige Bueckers: Assists O/U 5.5 | 50% |
| O/U 185.5 | 50% |
| Spread -3.5 | 50% |
| O/U 186.5 | 48% |
| Paige Bueckers: Points O/U 20.5 | 48% |
| Arike Ogunbowale: Points O/U 16.5 | 48% |
| Aliyah Boston: Points O/U 16.5 | 45% |
| Jessica Shepard: Rebounds O/U 10.5 | 45% |
| Kelsey Mitchell: Points O/U 25.5 | 43% |
| Caitlin Clark: Points O/U 23.5 | 43% |
| Kelsey Mitchell: Points O/U 24.5 | 43% |
| Arike Ogunbowale: Assists O/U 3.5 | 39% |
| Arike Ogunbowale: Rebounds O/U 3.5 | 38% |
| Jessica Shepard: Points O/U 13.5 | 28% |
| Jessica Shepard: Points O/U 14.5 | 26% |
| Jessica Shepard: Rebounds O/U 11.5 | 22% |
| Kelsey Mitchell: Assists O/U 2.5 | 22% |
| Jessica Shepard: Assists O/U 5.5 | 19% |
Market context
The Indiana Fever travel to Dallas on 20 August for a regular-season WNBA matchup against the Wings, with conditional tokens on Polygon currently pricing an Indiana victory at 61% implied probability. This reflects the Fever's stronger 2024 campaign and roster composition, though the settlement mechanism accounts for postponement risk through the open-until-completion clause, whilst cancellation without rescheduling would trigger a 50-50 split of USDC liquidity across both outcome tokens.
Indiana's recent trajectory provides the baseline for reading this probability. The Fever finished 2023 with a 20-12 record and made the playoffs, establishing themselves as a consistent mid-tier threat. Dallas, by contrast, has struggled with deeper roster inconsistency, finishing 2023 at 16-16. Head-to-head records between these franchises over the past two seasons favour Indiana marginally, though WNBA parity means single-game variance remains substantial. The 61% mark suggests traders view Indiana as a clear but not dominant favourite—roughly a 1.56 moneyline equivalent.
Key variables for position management include injury reports released in the 48 hours before tip-off, particularly regarding Indiana's perimeter depth and Dallas's interior presence. Recent WNBA scheduling has seen occasional postponements due to venue conflicts or weather, making the conditional token structure relevant for longer-dated holders. Traders should monitor official league communications and team social media for roster updates, as late-game absences can shift win probability significantly in a single-elimination format. The settlement window closes at midnight UTC on 21 August, allowing roughly 16 hours post-game for result confirmation and token redemption on the Polygon network.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $92K.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. 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.
- 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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