Philadelphia Phillies vs. Washington Nationals

Platform comparison

Active sub-markets

Market context

The underlying event is a Major League Baseball match between the Philadelphia Phillies and Washington Nationals at Nationals Park on Monday, 22 June, with the game scheduled to start at 6:45 p.m. ET. The Phillies, currently 42-35 and second in the NL East, face the Nationals, who sit 40-38 and fourth in the division, in the opening contest of a four-game series[3].

Historically, markets assigning near-zero probability to a team in such matchups often ignore individual star performance and venue-specific advantages. Bryce Harper, the Phillies’ cornerstone, holds a remarkable 1.009 OPS and .328 batting average at Nationals Park since joining the Phillies from the Nationals, a statistical anomaly that frequently disrupts pre-game odds[4]. Comparable cases in MLB prediction markets show that when a dominant player has a proven track record at a specific venue, the implied probability of their team winning rarely collapses to zero, even if the opposing team is favoured by the broader market.

Traders should monitor post-game injury reports and pitching line-up confirmations, as any unexpected changes could shift the settlement outcome. The market leans heavily on Harper’s venue-specific dominance, a catalyst that recent box score analyses from The Athletic confirm as a critical variable in this contest[5]. With the settlement window ending 22 June 2026, 22:45 UTC, any postponement will keep the market open until completion, making real-time updates from NBC Sports Philadelphia and MLB.TV essential for accurate positioning[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Philadelphia Phillies vs. Washington Nationals across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. Election Predictions UK routes every trade through to Polymarket — at 0% fees.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Is this market available outside the US?

Election Predictions 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 Election Predictions UK?

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

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.