Philadelphia Phillies vs. Los Angeles Dodgers

Platform comparison

Active sub-markets

Market context

The Phillies travel to face the Dodgers on 31 May at 4:10 PM ET in what shapes as a National League matchup between two franchises with contrasting trajectories this season. Polymarket currently prices Philadelphia's victory at 3%, reflecting the substantial gap in perceived quality between the two rosters. This 97-3 split on the conditional token pair suggests the market views the Dodgers as decisive favourites, pricing in both their roster composition and recent form.

Historical context matters here. The Dodgers have maintained a winning record against the Phillies over the past three seasons, though Philadelphia has shown capacity to compete in high-stakes matchups. When Polymarket prices a team at 3% in a single-game contract, it typically indicates either a significant talent disparity, home-field advantage, or both. The Dodgers' consistent investment in roster depth and their track record in May games—traditionally a month where stronger teams establish early separation—supports the current pricing structure. Conversely, the Phillies' recent performance and any roster adjustments heading into late May could shift this dynamic.

Traders should monitor starting pitcher assignments, which typically emerge 24-48 hours before game time and materially affect single-game probabilities. Injury reports for either team's key position players could trigger repricing, particularly if either side loses offensive contributors. Weather conditions at Dodger Stadium on game day may also influence play, though May weather in Los Angeles rarely presents the volatility seen in other markets. Settlement occurs on 7 June at 20:10 UTC, allowing for postponement scenarios to resolve before the window closes.

Methodology

We track Philadelphia Phillies vs. Los Angeles Dodgers on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi 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?

Kalshi 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 Kalshi UK?

Zero. Kalshi UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.