Chicago Cubs vs. Washington Nationals

Platform comparison

Market context

The Chicago Cubs travel to Washington on 13 August for a regular-season matchup against the Nationals, with first pitch at 4:05 PM ET. Polymarket currently prices Cubs victory at zero per cent, reflecting either extreme confidence in a Nationals win or minimal trading activity on this contract. The settlement window extends to 20 August 2026, allowing for postponements or rescheduling within that seven-day buffer.

Historical context matters here: Cubs-Nationals games in August typically favour neither team systematically, though the Cubs have generally held stronger records in recent seasons. The 0% pricing suggests either that traders believe Washington holds a decisive advantage at this particular juncture—perhaps due to recent form, injuries, or pitching matchups—or that the contract has simply attracted negligible volume. In low-liquidity markets on Polymarket, extreme probabilities often reflect sparse order books rather than genuine certainty. The conditional token structure on Polygon means positions settle in USDC once the official MLB result is confirmed.

Traders should monitor roster announcements and starting pitcher confirmations in the days preceding the game, as these directly influence win probability. Weather conditions at Nationals Park can affect play, particularly for a daytime August fixture. Any late-season injury updates to key position players or bullpen arms will shift the underlying matchup dynamics. The Cubs' recent performance trajectory and the Nationals' home-field record through early August provide concrete reference points for reassessing the current 0% valuation before settlement.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

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.

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 does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.