Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| PortlandFire vs. Seattle Storm | 100% |
| Flau'jae Johnson: Rebounds O/U 5.5 | 100% |
| Bridget Carleton: Rebounds O/U 3.5 | 99% |
| Megan Gustafson: Rebounds O/U 3.5 | 99% |
| Spread -1.5 | 93% |
| Awa Fam: Points O/U 11.5 | 51% |
| Dominique Malonga: Points O/U 17.5 | 50% |
| Natisha Hiedeman: Points O/U 15.5 | 50% |
| Carla Leite: Points O/U 14.5 | 50% |
| Bridget Carleton: Points O/U 13.5 | 50% |
| Dominique Malonga: Rebounds O/U 8.5 | 50% |
| Awa Fam: Rebounds O/U 5.5 | 50% |
| Sarah Ashlee Barker: Rebounds O/U 4.5 | 50% |
| Carla Leite: Assists O/U 5.5 | 50% |
| Natisha Hiedeman: Assists O/U 4.5 | 50% |
| Carla Leite: Assists O/U 6.5 | 50% |
| Dominique Malonga: Points O/U 18.5 | 50% |
| Jade Melbourne: Assists O/U 4.5 | 50% |
| Spread -2.5 | 16% |
| Spread -4.5 | 11% |
| O/U 171.5 | 5% |
| O/U 168.5 | 3% |
| O/U 165.5 | 2% |
| O/U 166.5 | 2% |
| O/U 167.5 | 2% |
| Spread -3.5 | 2% |
| O/U 169.5 | 2% |
| Flau'jae Johnson: Points O/U 12.5 | 1% |
| O/U 170.5 | 1% |
| O/U 172.5 | 1% |
Market context
The PortlandFire vs. Seattle Storm prediction market currently prices this outcome at 100% YES. In the upcoming WNBA game, scheduled for July 4 at 9:00PM ET: If the PortlandFire win, the market will resolve to "PortlandFire". If the Seattle Storm win, the market will resolve to "Seattle Storm". …
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $239K.
Methodology
This page reviews PortlandFire vs. Seattle Storm across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
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
- 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 fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within 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.
Trade PortlandFire vs. Seattle Storm on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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