Arizona Diamondbacks vs. St. Louis Cardinals

Platform comparison

Active sub-markets

Market context

The underlying real-world event is the Major League Baseball game between the Arizona Diamondbacks and the St. Louis Cardinals, played on Tuesday, 23 June at Busch Stadium in St. Louis, Missouri, with the Cardinals winning 3–2 in the most recent contest[1][4]. This specific matchup concluded with a narrow victory for the home side, reinforcing a pattern where St. Louis often prevails in tight, low-scoring affairs against Arizona when pitching dominates the flow[6][7].

Historically, similar MLB prediction markets have shown that when a team’s current crowd-implied probability drops to 0% YES, it typically reflects either a known injury, a severe form slump, or a confirmed postponement that has not yet been officially settled in the market’s resolution source[2][5]. In past comparable cases, such as the 2024 Dodgers–Giants series, markets with 0% probabilities resolved to the opposing team only after a confirmed cancellation or a tie, which then triggered the 50–50 settlement clause rather than a decisive win[1][3].

Traders should monitor the official MLB announcement channel for any updates on game status, particularly regarding Eduardo Rodriguez’s availability, as his recent 7-inning, 1-run performance suggests he remains a key factor in Arizona’s chances[6]. The market is leaning on the catalyst of game completion confirmation, with no indication of a tie or cancellation yet; if the game is played as scheduled, the resolution will depend solely on the final score, not on external political or campaign-finance disclosures[2][5]. Recent news from USA Today confirms the game is set for 7:45 p.m. ET, with no postponement declared as of now[2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Arizona Diamondbacks vs. St. Louis Cardinals plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

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 it cost to trade on Election Predictions UK?

Zero. Election Predictions 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.