Boston Legacy FC vs. Washington Spirit

Platform comparison

Market context

The NWSL fixture between Boston Legacy FC and Washington Spirit, scheduled for Sunday 19 July 2026 in Pawtucket, Rhode Island, has already concluded with a 2–1 victory for Washington. Trinity Rodman and Tara Rudd scored for the visitors, while Smith replied late for Boston, meaning the market settling on a Washington win is now a settled fact rather than a forward-looking probability [1][3].

A 0% crowd-implied probability for a Boston victory aligns with the historical reality that the match result is fixed, yet it diverges sharply from pre-game sportsbook lines which offered Boston +285 odds and a +0.5 spread, reflecting a competitive contest before kickoff [2]. Analyst consensus at the time viewed Washington as the superior side given their 9–3–3 record versus Boston’s 4–4–8, but the prediction market’s current zero probability correctly reflects the post-event settlement rather than the pre-match uncertainty that defined the odds on Kalshi or traditional books [2][4].

Traders should note that no further catalysts exist for this contract as the settlement window closed immediately after the final whistle, with the result confirmed by official NWSL records and major sports outlets [1][4]. The only dependency was the match completion itself, which occurred without delay, rendering any pre-game announcements regarding lineups or injuries irrelevant to the final outcome [3]. This case illustrates how prediction markets can rapidly converge to 0% or 100% once real-world events resolve, unlike sportsbooks that close lines immediately upon game completion.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.