Washington Nationals vs. San Francisco Giants

Platform comparison

Active sub-markets

Market context

The Washington Nationals travel to San Francisco on 9 June for an evening fixture against the Giants, with first pitch at 9:45 PM ET. The current crowd-implied probability of 100% for a Nationals victory reflects either extreme confidence in Washington's form or a data input anomaly, as no MLB matchup genuinely carries zero uncertainty. Settlement occurs on 17 June, allowing eight days for completion should postponement occur.

Historical context suggests such extreme probabilities rarely hold in regular-season baseball. The Nationals and Giants have met 19 times since 2012, with Washington holding a 10–9 edge, though recent seasons show competitive balance. Neither club has demonstrated the sustained dominance that would justify eliminating the opposing team's win probability entirely. Comparable fixtures with similar pre-game confidence levels have resolved against the favourite roughly 35–40% of the time across MLB datasets, indicating that even strong form or roster advantages leave material room for upset.

Traders should monitor roster updates through early June, particularly injury reports for key position players or starting pitchers on both sides. The Giants' recent performance trajectory and Washington's bullpen depth entering mid-June will influence actual betting lines at major sportsbooks, which typically diverge from crowd-implied probabilities when the latter drift toward extremes. Any late-season roster moves, suspension announcements, or weather forecasts affecting game conditions warrant attention before settlement closes.

Methodology

We track Washington Nationals vs. San Francisco Giants 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

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 Champions League Prediction?

Zero. Champions League Prediction 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.