Philadelphia Union vs. Inter Miami CF - More Markets

Platform comparison

Market context

Philadelphia Union hosted Inter Miami CF in an MLS fixture scheduled for 19 August at Subaru Park, with the prediction market at 6% YES, implying a very different read from the pre-match moneyline market. Sportsbooks were broadly clustered around a tight three-way price: Philadelphia around +125 to +150, Inter Miami around +148 to +161, and the draw around +270 to +300, which puts the contract’s 6% at a deep discount to both sportsbook probability and analyst-style previews.[1][2][3]

Comparable pricing suggests this is not a true long-shot on the football side, but a low-likelihood outcome for whatever the “more markets” contract is tracking. Recent market comparators had the home side priced as a slight favourite on some boards, while independent preview panels and model-based pieces split between Philadelphia and Inter Miami, with one odds comparison putting the de-vigged home win near 42% and Miami near 37%.[2][4] That leaves the contract’s 6% only defensible if the settlement condition is narrow, event-specific, and dependent on a rare in-game or proposition-style trigger rather than the match result itself.[2][4]

The main catalysts for traders are team news and the final line-up sheet, because late changes can shift both sides of a close MLS handicap market. Inter Miami’s pricing remained sensitive to whether key attacking starters were available, while Philadelphia’s home edge was supported by the venue and the market’s narrow spread; the game was also carrying a relatively high total of 3.5 goals on some books, which matters if the “more markets” contract is tied to cards, corners, or scoring thresholds rather than outright result.[1][3][5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Philadelphia Union vs. Inter Miami CF - More Markets across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors 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

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.