Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
94% | 6% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
94% | 6% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Kelsey Mitchell: Assists O/U 2.5 | 94% |
| O/U 171.5 | 90% |
| O/U 172.5 | 86% |
| O/U 173.5 | 85% |
| O/U 174.5 | 83% |
| Aliyah Boston: Points O/U 17.5 | 75% |
| Kahleah Copper: Points O/U 19.5 | 67% |
| Spread -1.5 | 61% |
| Alyssa Thomas: Assists O/U 8.5 | 57% |
| Kahleah Copper: Points O/U 20.5 | 55% |
| Alyssa Thomas: Points O/U 14.5 | 52% |
| Lexie Hull: Points O/U 9.5 | 51% |
| Kelsey Mitchell: Points O/U 23.5 | 50% |
| Aliyah Boston: Rebounds O/U 8.5 | 50% |
| Alyssa Thomas: Rebounds O/U 6.5 | 50% |
| Lexie Hull: Rebounds O/U 4.5 | 50% |
| Kahleah Copper: Rebounds O/U 3.5 | 50% |
| Kelsey Mitchell: Rebounds O/U 1.5 | 50% |
| Kahleah Copper: Assists O/U 1.5 | 50% |
| Tyasha Harris: Assists O/U 4.5 | 50% |
| Indiana Fever vs. Phoenix Mercury | 37% |
| Lexie Hull: Points O/U 8.5 | 29% |
| DeWanna Bonner: Points O/U 11.5 | 26% |
| Aliyah Boston: Assists O/U 3.5 | 25% |
| DeWanna Bonner: Rebounds O/U 6.5 | 24% |
Market context
The upcoming WNBA matchup pits the Indiana Fever against the Phoenix Mercury at the Mortgage Matchup Center in Phoenix, with tip-off scheduled for 10:00pm ET on Thursday, 9 July. The market currently implies a 37% chance of an Indiana Fever victory, suggesting the home side holds a distinct advantage despite the Fever’s recent momentum.
Historical context from their previous meeting frames this probability: Phoenix won that contest 111–109, but the result was marred by Alyssa Thomas receiving a one-game suspension following the game, which may impact her availability or performance in this fixture [1][7]. Comparable late-season WNBA games often show home teams winning by narrow margins when key players face disciplinary hangovers, making the 37% Fever probability plausible if Thomas is limited.
Traders should monitor official injury reports and Thomas’s suspension status, as her participation could swing the outcome significantly. The game will be streamed on Amazon Prime Video and broadcast on WTHR Channel 13, with no confirmed postponement risks yet [4]. On platform divergence, Polymarket lists Indiana at 51¢ (51% implied) and Phoenix at 50¢ (50%), whereas Kalshi and Betfair typically display decimal odds rather than implied probabilities, and often impose stricter KYC requirements and higher fee structures than Polymarket’s crypto-native model [2].
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $248K.
Methodology
We read Indiana Fever vs. Phoenix Mercury from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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