Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Spread -5.5 | 100% |
| Spread -6.5 | 100% |
| Kahleah Copper: Points O/U 18.5 | 100% |
| Awa Fam: Points O/U 11.5 | 100% |
| Alyssa Thomas: Rebounds O/U 6.5 | 100% |
| Awa Fam: Rebounds O/U 5.5 | 100% |
| Kahleah Copper: Rebounds O/U 3.5 | 100% |
| Flau'jae Johnson: Assists O/U 2.5 | 100% |
| Spread -4.5 | 100% |
| Spread -3.5 | 100% |
| Alyssa Thomas: Assists O/U 8.5 | 50% |
| Flau'jae Johnson: Rebounds O/U 5.5 | 50% |
| Natisha Hiedeman: Points O/U 14.5 | 50% |
| Dominique Malonga: Points O/U 17.5 | 10% |
| Natisha Hiedeman: Points O/U 15.5 | 10% |
| Alyssa Thomas: Points O/U 14.5 | 10% |
| Flau'jae Johnson: Points O/U 12.5 | 10% |
| Dominique Malonga: Rebounds O/U 8.5 | 10% |
| Flau'jae Johnson: Rebounds O/U 4.5 | 10% |
| Natisha Hiedeman: Assists O/U 4.5 | 10% |
| Dominique Malonga: Points O/U 18.5 | 10% |
| Seattle Storm vs. Phoenix Mercury | 0% |
| O/U 167.5 | 0% |
| O/U 166.5 | 0% |
| O/U 168.5 | 0% |
| O/U 169.5 | 0% |
Market context
The underlying real-world event is a WNBA match scheduled for 10:00PM ET on 2 July between the Seattle Storm and the Phoenix Mercury, where the market resolves to the winner based on the final score including overtime. Current crowd-implied probability of 0% YES for a Seattle Storm win suggests the market views a Storm victory as virtually impossible, a stance that aligns with historical precedents where the Mercury have recently dominated this fixture. On 3 June 2026, the Phoenix Mercury defeated the Seattle Storm 72–68, snapping a seven-game losing streak with Natasha Mack scoring a career-high 16 points and Kahleah Copper adding 16 more[1]. This result reversed a trend from the previous month, where the Mercury had won 93–73 against the Storm on 20 June 2026[2], indicating a sharp form shift favouring Phoenix in recent head-to-head contests.
Traders should monitor immediate pre-game announcements regarding player availability, particularly for key absences that could alter the 0% probability, as the Mercury’s recent surge hinges on Mack and Copper’s sustained performance. The game is set at the Footprint Centre on 3 July 2026, and any postponement would keep the market open until completion, while a full cancellation would resolve 50–50[4]. Recent beat-reporter coverage from ESPN highlights the Mercury’s resilience after their seven-game skid, noting that their form is now the primary catalyst for market confidence[1]. Watch for late injury updates or coaching adjustments that could disrupt the current trajectory, as the settlement window ends 02:00:00Z on 3 July 2026, leaving little time for probability shifts once the match begins.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $216K.
Methodology
Sports-specific comparison page for Seattle Storm vs. Phoenix Mercury. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- What are live sports odds on Polymarket?
- Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
Trade Seattle Storm vs. Phoenix Mercury on Sport Prediction
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