Inter Miami CF vs. Philadelphia Union - More Markets

Platform comparison

Active sub-markets

Market context

Inter Miami CF will face Philadelphia Union in Major League Soccer on 24 May 2026 at 7:00 PM Eastern Time. The 100% implied probability across Polymarket suggests near-certainty that additional markets will be offered for this fixture, though the specific nature of those markets—whether goal-scorer props, corner counts, or card totals—remains unspecified in the settlement criteria. This ambiguity itself drives the probability ceiling, as the market is essentially pricing the likelihood that at least one supplementary betting option materialises rather than forecasting a particular match outcome.

Historical precedent shows that Polymarket's liquidity on MLS fixtures has grown substantially since 2023, with major platforms now routinely offering 5–8 derivative markets per match by kickoff. Kalshi's sports coverage remains more selective and typically focuses on league-wide outcomes rather than individual-game props, whilst Betfair and Smarkets have maintained deeper markets on top-tier European fixtures. The decimal-odds format on Smarkets (1.01 equivalent to this 100% probability) versus Polymarket's percentage display can obscure how thin the margin for error becomes at such extremes; a single unforeseen cancellation or platform policy change would trigger settlement disputes.

Traders should monitor MLS fixture confirmations and any league scheduling announcements through official sources. Platform-specific fee structures matter here: Polymarket's 2% settlement fee and Kalshi's variable commission model will compress returns differently if the probability drifts below 95%. The settlement window closes 24 May at 23:00 UTC, leaving a narrow window post-match for market creation confirmation.

Methodology

We read Inter Miami CF vs. Philadelphia Union - More Markets 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 quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 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.