Arizona Diamondbacks vs. Cincinnati Reds

Platform comparison

Active sub-markets

Market context

On 13 June, the Arizona Diamondbacks will travel to Cincinnati to face the Reds in an MLB regular-season matchup. In a prediction market, a YES share represents a bet on the Diamondbacks winning; a NO share bets on a Reds victory. The current 0% probability assigned to YES suggests the market participant(s) view a Cincinnati win as near-certain, though this extreme reading warrants scrutiny given typical mid-season volatility in baseball.

The Diamondbacks and Reds occupy different competitive positions within the National League Central. Arizona has historically been the stronger franchise over the past decade, with a World Series appearance in 2023, whilst Cincinnati has endured rebuilding phases. However, single-game outcomes in baseball are notoriously difficult to predict with high confidence; home-field advantage, recent form, and pitching matchups typically matter more than season-long records. A 0% probability on the Diamondbacks reflects either extreme confidence in Cincinnati's setup or very limited market participation, both of which can shift rapidly.

Key variables for traders include the announced starting pitchers—their recent ERA, matchup history, and bullpen availability—and injury reports for both rosters, particularly any late-breaking absences among position players or relievers. Weather conditions in Cincinnati on game day may also influence play. The settlement window extends to 20 June, allowing for postponements; if the game is cancelled with no make-up scheduled or ends in a tie, the market resolves 50-50. Traders should monitor official MLB communications and team announcements in the days immediately before the fixture.

Methodology

This page reviews Arizona Diamondbacks vs. Cincinnati Reds 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

Where can I trade this market with the lowest fees?

On Prediction Market UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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 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.