Washington Nationals vs. Colorado Rockies

Platform comparison

Market context

The Washington Nationals defeated the Colorado Rockies 7–3 in their MLB game on Monday, 20 July 2026 at Coors Field, with Andrés Chaparro, Jacob Young and CJ Abrams each hitting a home run to secure the victory [1][2]. This outcome aligns perfectly with the market’s current 100% YES probability for the Nationals, confirming the event has already concluded as expected.

Historically, when a team holds a 100% implied probability in a completed sports market, resolution is virtually certain unless the game is postponed or cancelled without a make-up, which did not occur here [2]. Comparable cases in MLB prediction markets show that once a final score is officially recorded by the league, markets resolve immediately without further volatility, as the result is no longer contingent on future variables.

Traders should monitor the official final statistics released by MLB for any post-game adjustments, though no such changes are anticipated given the clear 7–3 margin [1]. The primary catalyst for resolution is the confirmation of the final score by the league’s official data feed, which has already been published by major sports outlets including CBS Sports and Bleacher Report [1][2]. No further announcements, schedules or dependencies remain relevant as the game is complete.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Washington Nationals vs. Colorado Rockies plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.