Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
0% | 100% | 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
| Connecticut Sun vs. Seattle Storm | 0% YES | 100% NO |
| Spread -2.5 | 100% YES | 0% NO |
| O/U 167.5 | 0% YES | 100% NO |
| O/U 166.5 | 0% YES | 100% NO |
| Spread -3.5 | 100% YES | 0% NO |
| Spread -1.5 | 100% YES | 0% NO |
Market context
The Connecticut Sun and Seattle Storm will meet on 22 May at 10:00 PM ET in a regular-season WNBA matchup. The market currently shows zero probability assigned to a Connecticut victory, reflecting either extreme confidence in Seattle's superiority or minimal liquidity depth at present. Settlement occurs the following morning at 02:00 UTC, with postponement provisions extending the window until completion and cancellation triggering a 50-50 split.
Historical WNBA matchups between these franchises show competitive variance rather than dominance patterns. The Storm have marginal regular-season advantages in recent years, but the Sun have demonstrated capacity to compete in playoff contexts and against top-seeded opponents. A 0% probability assignment is atypical for professional sports markets where injury status, rotation decisions, and venue factors routinely shift outcomes. This extreme reading typically signals either a liquidity constraint—insufficient YES-side capital to move the odds—or a data lag where the market has not yet absorbed recent roster or injury announcements.
Traders monitoring this market should track roster updates through the WNBA's official injury reports, which typically release 24 hours before tip-off. Connecticut's backcourt depth and Seattle's frontcourt availability will be material catalysts. Deposit flows into prediction markets often accelerate when major sports events approach; traders using SEPA transfers, Klarna instalments, or USDC on-ramps may find book depth improves significantly in the 48 hours preceding the game. The settlement window's tight closure (02:00 UTC on 23 May) means withdrawal processing for winning positions should be verified against your chosen rail's settlement times before committing capital.
Methodology
This page reviews Connecticut Sun vs. Seattle Storm across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against the Polymarket order book at 0% fees.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 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.
- 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 Connecticut Sun vs. Seattle Storm on PolyGram
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