Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
56% | 44% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
56% | 44% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Dominique Malonga: Rebounds O/U 7.5 | 56% |
| O/U 181.5 | 54% |
| Sabrina Ionescu: Assists O/U 5.5 | 52% |
| O/U 182.5 | 52% |
| Pauline Astier: Points O/U 8.5 | 51% |
| Natisha Hiedeman: Rebounds O/U 2.5 | 50% |
| Sabrina Ionescu: Points O/U 19.5 | 49% |
| Breanna Stewart: Assists O/U 3.5 | 49% |
| O/U 183.5 | 49% |
| Jonquel Jones: Points O/U 14.5 | 48% |
| Flau'jae Johnson: Assists O/U 2.5 | 48% |
| Spread -8.5 | 48% |
| O/U 184.5 | 45% |
| Spread -9.5 | 44% |
| Natisha Hiedeman: Assists O/U 5.5 | 41% |
| Natisha Hiedeman: Points O/U 16.5 | 35% |
| Jonquel Jones: Assists O/U 2.5 | 34% |
| Breanna Stewart: Rebounds O/U 8.5 | 33% |
| Jade Melbourne: Assists O/U 3.5 | 33% |
| Breanna Stewart: Points O/U 22.5 | 31% |
| Flau'jae Johnson: Rebounds O/U 4.5 | 31% |
| Jonquel Jones: Rebounds O/U 8.5 | 30% |
| Dominique Malonga: Points O/U 15.5 | 29% |
| Dominique Malonga: Points O/U 14.5 | 29% |
| Flau'jae Johnson: Assists O/U 3.5 | 28% |
| Sabrina Ionescu: Rebounds O/U 4.5 | 25% |
| Seattle Storm vs. New York Liberty | 24% |
Market context
Polymarket is pricing **Seattle Storm vs New York Liberty** at **24% YES**, with settlement tied to the final result of the game and any overtime, and the contract kept open if the fixture is postponed rather than completed on time. On-chain, the position is expressed through USDC on Polygon via conditional tokens, so the market will only settle once the match outcome is official under the listed rules.
That 24% price sits well below what recent form and head-to-head results would imply for Seattle. New York beat Seattle **95-83 on 3 August**, with Breanna Stewart and Jonquel Jones leading the Liberty, and ESPN’s preview ahead of that game noted Seattle’s poor road record and the Liberty’s stronger home profile. At the same time, the Storm have already shown they can upset New York, having snapped an 11-game skid with a **99-88 win on 25 June**, so the market is not pricing this as a pure mismatch; it is weighing a live possibility of a Seattle bounce-back against a stronger Liberty baseline.
Traders will mainly watch for late injury, rotation, and scheduling news before tip-off, because those factors can move the implied probability more than season averages once line-ups are confirmed. ESPN’s pregame coverage listed **Leonie Fiebich** and **Satou Sabally** as out for New York in the earlier meeting, while Seattle had no injuries listed, and any change to those availability notes would matter for the contract. The other dependency is simple but important for Polymarket users: if the game starts late, is suspended, or is moved, the market stays open until completion; only a full cancellation with no make-up would push settlement to 50-50.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $96K.
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
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- 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.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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.
Trade Seattle Storm vs. New York Liberty on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
Open live market →