Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
2% | 98% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
2% | 98% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Active sub-markets
| Washington Mystics vs. Seattle Storm | 2% YES | 98% NO |
| O/U 159.5 | 99% YES | 1% NO |
| O/U 158.5 | 99% YES | 1% NO |
| Spread -3.5 | 25% YES | 75% NO |
| O/U 160.5 | 100% YES | 1% NO |
| Spread -4.5 | 17% YES | 83% NO |
Market context
The Washington Mystics travel to Seattle on 24 May for a regular-season WNBA matchup against the Storm. Polymarket currently prices the Mystics' victory at 19 per cent, implying roughly 4-to-1 odds against Washington. The conditional token structure on Polygon settles in USDC upon game completion, with the settlement window closing at 22:00 UTC on the scheduled date. Postponement keeps the market open; cancellation without rescheduling triggers a 50-50 split.
Seattle enters 2026 as a franchise with sustained playoff infrastructure and recent playoff appearances, whilst Washington has cycled through rebuilding phases. Historical matchups between these teams show the Storm's home-court advantage carries measurable weight in WNBA play, particularly in May when travel fatigue affects visiting rosters. The 19 per cent probability reflects not merely the teams' relative strength but also the venue effect—Seattle's Climate Pledge Arena has hosted consistent Storm success. Comparable road games for Washington against established Western Conference sides typically settle between 15–25 per cent win probability, placing this contract within expected range.
Traders should monitor roster availability announcements through 23 May, particularly injury reports on key Mystics contributors and any late-season rotation adjustments by Seattle's coaching staff. Weather and travel delays, whilst uncommon in late May, remain technical dependencies for settlement. The WNBA's official injury report updates occur 48 hours pre-game; any significant absences could shift conditional token pricing materially. Game-day conditions at tipoff—player availability confirmed within hours of the 22:00 UTC settlement window—represent the final catalyst before conditional tokens resolve.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $360K.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
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
- 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.
- What does it cost to trade on PolyGram?
- Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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 Washington Mystics vs. Seattle Storm on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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