Philadelphia Phillies vs. Milwaukee Brewers

Platform comparison

Active sub-markets

Market context

The Phillies travel to Milwaukee for a regular-season matchup on 13 June, with the market currently pricing Philadelphia's chances at 40 per cent. The Brewers, despite their inconsistent recent form, are favoured here by the crowd, suggesting either confidence in home-field advantage or concern about the Phillies' current trajectory.

Historically, the Phillies have held a slight edge in head-to-head records against Milwaukee over the past five seasons, though neither team has demonstrated sustained dominance in the fixture. The 40 per cent probability for Philadelphia reflects a modest underdog positioning—not extreme, but meaningful. The consensus appears to favour the Brewers' home status and recent divisional standing, yet the Phillies' roster quality and playoff pedigree suggest potential value at this price if their starting pitcher assignment favours them or if Milwaukee's injury situation has worsened since market open.

Key variables include the confirmed starting pitchers, which typically shift these markets 3–5 percentage points in either direction depending on ERA and recent form. Weather conditions at American Family Field—particularly wind direction and temperature—can favour either team's offensive profile. Monitor late-breaking roster updates through 12 June; any unexpected absences from either lineup could shift the probability materially. Recent form matters less in single-game markets than matchup-specific factors, so focus on bullpen availability and whether either team is managing workload heading into the settlement window on 20 June.

Methodology

We track Philadelphia Phillies vs. Milwaukee Brewers 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

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 Who Will Win?

Zero. Who Will Win 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.