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
| Golden State Valkyries vs. Indiana Fever | 0% YES | 100% NO |
| Spread -7.5 | 100% YES | 0% NO |
| O/U 166.5 | 100% YES | 0% NO |
| O/U 168.5 | 100% YES | 0% NO |
| Spread -6.5 | 100% YES | 0% NO |
| Spread -5.5 | 100% YES | 0% NO |
Market context
The Golden State Valkyries will face the Indiana Fever in a WNBA regular-season matchup on 22 May at 7:30 PM ET. The 0% implied probability reflects either minimal trading volume or a consensus view that settlement remains uncertain until tip-off. WNBA games scheduled for late May typically draw modest early-market participation, particularly when rosters remain in flux during the opening weeks of the season.
Historical precedent suggests that WNBA matchups between expansion or newly rebranded franchises and established teams often see probability shifts driven by roster confirmation rather than pre-game analysis. The Valkyries, as a franchise entering or re-entering the league, carry structural uncertainty that depresses early confidence in either direction. Comparable inaugural-season WNBA contests have seen markets remain flat until injury reports and final lineup confirmations arrive within 48 hours of tip-off. The current zero reading likely reflects sparse order-book depth rather than a definitive forecast.
Traders monitoring this market should track official roster announcements from both franchises, particularly any late-season injuries or load-management decisions affecting key players. Venue confirmation and weather conditions (if the game is outdoors) can also trigger repricing. Deposit and withdrawal flows into prediction markets typically accelerate once mainstream sports media coverage intensifies, usually 72 hours before fixture time. SEPA transfers and USDC on-ramp availability will determine whether liquidity deepens sufficiently to move the book away from its current extremes. Settlement occurs at 23:30 UTC on 22 May, with postponement provisions extending the window if necessary.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.
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.
- 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.
Trade Golden State Valkyries vs. Indiana Fever on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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