Philadelphia Union vs. Atlanta United FC

Platform comparison

Market context

Philadelphia Union host Atlanta United FC in an MLS regular-season match, and a **YES** share on this market pays out if the match settles as the described fixture within the window ending 1 August 2026 at 23:30 UTC. A **NO** share pays out if the event does not occur as specified, or if the settlement conditions are not met, so traders are pricing both the football outcome and the match’s timely completion.

The current crowd-implied **8% YES** suggests the market thinks this outcome is unlikely relative to the broad field of possible settlement paths. Recent form and head-to-head results help explain why the number can move quickly: Atlanta beat Philadelphia 3-1 in March 2026, but Philadelphia had won the previous two league meetings 1-0 and 3-0, and the wider record is fairly balanced over a longer sample[6][10][13]. Both sides were also close in the table in mid-season 2026, with Philadelphia on 13 points and Atlanta on 12, which makes pre-match team news and line-up strength especially relevant[2][8][9].

The main catalysts for traders are late injury updates, squad rotation, and any schedule changes, because MLS fixtures can shift with broadcast or competition dependencies. Official club preview and match-recap coverage has already shown that these teams can look very different from one meeting to the next, particularly when Atlanta’s attacking creators are available or when Philadelphia’s home form is strong[10][19]. If the fixture is delayed, moved, or abandoned, that matters directly to settlement as much as the scoreline itself.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.