Pronóstico: Indiana Fever vs. Phoenix Mercury

Platform comparison

Market context

The Indiana Fever and Phoenix Mercury face off on 9 July at 10:00PM ET in a WNBA matchup where the Fever hold a 5.5-point advantage according to bookmakers[3]. On Polymarket, this contract trades at 50% YES for an Indiana win, reflecting a market split despite the Fever’s recent dominance and superior record of 12–8 against the Mercury’s 8–14[3]. The on-chain mechanics utilise USDC on Polygon, with conditional tokens resolving based on the final score including overtime, while a cancellation triggers a 50–50 settlement[3].

Historically, head-to-head results between these sides have swung sharply: the Fever won 86–77 on 22 June after overcoming a 13-point first-quarter deficit, with Caitlin Clark scoring 24 points and Kelsey Mitchell adding 22[2]. Just two days later, the Mercury edged a 111–109 victory, marking their highest scoring game since 2016, led by Kahleah Copper’s 28 points[9]. This volatility frames the current 50% probability as a fair reflection of alternating form rather than a clear edge for either side[1].

Traders should monitor pre-game injury reports and lineup announcements, as the Fever’s homestand momentum could be disrupted by fatigue after facing the Las Vegas Aces[3]. The over/under opens at 184.5, suggesting a high-scoring contest where defensive adjustments could sway the outcome[3]. Recent bookmaker models estimate a 66% chance for Indiana and 34% for Phoenix, diverging from the Polymarket price and highlighting a potential arbitrage opportunity if the market corrects[8]. No major schedule changes are expected, but any delay would keep the contract open until completion[3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: Indiana Fever vs. Phoenix Mercury across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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'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.

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.