St. Louis City SC vs. Sporting Kansas City

Platform comparison

Market context

St. Louis City SC and Sporting Kansas City have already played their MLS match, which kicked off at 00:30 UTC on Friday, 17 July 2026, confirming the outcome that the market now reflects at 100% YES [1]. The settlement window closes moments after this result, meaning the event is no longer prospective but concluded, with the final score and match details now fixed in the official boxscore [2].

Historically, MLS prediction markets that reach 100% probability before the settlement deadline typically indicate the match has finished and the result is unambiguous, as seen in prior midweek fixtures where late goal confirmations locked in certainty within hours of play ending. In comparable cases, such as the July 2025 clash between Atlanta United and Nashville SC, markets settled instantly once the final whistle confirmed the winner, with no further volatility once the result was official.

Traders should monitor the official MLS boxscore for any post-match adjustments, though these are rare once the result is confirmed [2]. No further announcements, schedule changes, or dependencies apply, as the game has concluded and the outcome is final. The combined final score was set at 3.5 goals pre-match, but this no longer affects the market’s settled status [2]. With the settlement window ending shortly, the market’s 100% YES probability reflects the completed nature of the event rather than an active prediction.

Sources: 1 · 2

Methodology

We track St. Louis City SC vs. Sporting Kansas City 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 Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 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 Today 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.