Cincinnati Reds vs. Philadelphia Phillies

Platform comparison

Active sub-markets

Market context

The Cincinnati Reds and Philadelphia Phillies meet at Citizens Bank Park with the market priced at 100% for a Phillies win, leaving no visible underdog premium in the headline number. That is an extreme consensus position for a single regular-season game, and it usually reflects either a major mismatch in the projected pitching edge or a market that is effectively treating the favourite as a near-certainty because of recent form and venue. Philadelphia have already beaten Cincinnati in this set, including a 5-4 comeback on Monday and a 4-1 Reds reply on Tuesday, which is exactly the sort of short-series split that can flatten price sensitivity: the immediate form line looks balanced, but the market is still anchored to the Phillies’ longer-track edge.

For traders, the key catalysts are the announced starters, any late line-up rests, and whether the game proceeds on schedule after a high-frequency stretch in the calendar. The series has already produced two low-to-mid scoring results, so confirmation of the bullpen availability matters as much as the headline starter, especially with the Phillies having used late leverage arms in tight games. ESPN’s game report on Monday highlighted Bryson Stott’s eighth-inning homer and Jhoan Duran’s clean ninth, while recent coverage from SI noted Chase Burns steering the Reds to the Game 2 win, underlining how much these matchups have depended on individual pitching performances rather than broad team strength. In a 100% YES market, the obvious consensus is Phillies, but any value would only sit on a contrarian Reds angle if the line-up or pitching news materially narrows the gap.

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). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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 PolyGram, 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?

PolyGram 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.

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.