Arizona Diamondbacks vs. St. Louis Cardinals

Platform comparison

Active sub-markets

Market context

The real-world event centres on an MLB game between the Arizona Diamondbacks and the St. Louis Cardinals, scheduled for 24 June at 7:45 PM ET in St. Louis. In prediction markets, a YES share pays out if the selected outcome occurs—here, that the Diamondbacks win—while a NO share pays if they do not. The current market shows a 100% YES probability for the Diamondbacks, implying the event is treated as certain, though the game description notes that a tie or cancellation would resolve the market at 50–50.

Historically, such extreme probabilities in sports markets often precede corrections when unexpected factors emerge, such as late pitching changes or weather disruptions. For instance, in past MLB games where one team was priced near certainty, a single injury to a starting pitcher frequently shifted the implied win probability by 20% or more within hours. The Diamondbacks are currently listed as a -102 underdog on the moneyline, while the Cardinals hold a -116 favourite status at home, suggesting the market’s 100% YES stance may not align with traditional betting odds[1][4].

Traders should monitor official lineup announcements, particularly for starting pitchers, as these directly impact win probabilities. The Cardinals are slightly favoured with moneyline odds of -119, and the game’s over/under is set at 9 runs, indicating expectations for a moderate-scoring contest[1][3]. Any delay in the game due to weather or a change in the starting rotation could alter the market’s certainty. Recent forecasts from numberFire predict a 57.5% chance for the Cardinals to win, highlighting a notable divergence from the current prediction market pricing[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Arizona Diamondbacks vs. St. Louis Cardinals across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Prediction Market UK — the application we operate, where you trade directly against 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

Is this market available outside the US?

Prediction Market UK 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.

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 Prediction Market UK?

Zero. Prediction Market UK 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.

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.