San Diego Padres vs. Philadelphia Phillies

Platform comparison

Active sub-markets

Market context

The Padres travel to Philadelphia for a regular-season matchup on 4 June, with Polymarket currently pricing San Diego's victory at 36 cents per YES token on USDC/Polygon. This implies roughly a 36% probability of a Padres win, leaving the Phillies favoured at 64%. The settlement window extends to 11 June at 17:05 UTC, providing a week-long window for the game's completion and resolution of conditional tokens.

Historical matchups between these franchises show the Phillies have held a slight edge in recent seasons, though the Padres' 2020 playoff run and subsequent roster investments have narrowed the gap considerably. The Phillies' home-field advantage at Citizens Bank Park typically commands a 3–4 percentage-point probability boost in comparable MLB markets, which aligns with the current pricing structure. Both teams' records at the time of the fixture, recent form, and strength of schedule all factor into how traders on Polymarket have positioned this contract relative to conventional sportsbooks.

Traders should monitor starting pitcher assignments and injury reports released in the days preceding the game, as rotation changes or roster moves can shift conditional token valuations sharply. Weather conditions at Philadelphia—particularly wind direction and temperature—affect play style and run-scoring expectations. Any late-breaking news regarding key players' availability, particularly among the Phillies' core lineup or the Padres' pitching staff, will likely trigger repricing on the Polygon chain before first pitch.

Methodology

We track San Diego Padres vs. Philadelphia Phillies 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi UK triggers a quick verification flow that finishes in 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.