Colombia Presidential Election Runoff: Margin of Victory

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Active sub-markets

Market context

Polymarket is pricing this runoff-margin contract at **1% YES**, which implies the market expects the winning gap between Colombia’s top two presidential runoff candidates to finish outside the contract’s threshold in the directions that would pay out on a “YES” outcome. On Polymarket, the trade settles in USDC on Polygon through conditional tokens, so the live price is the market’s current view of how the official runoff result will land rather than a forecast of the headline winner alone.[7]

The key historical frame is that Colombia’s 2026 race has already been tight by first-round standards: Abelardo de la Espriella led Iván Cepeda 43.7% to 40.9%, a gap of 2.84 percentage points, which is unusually small for a two-candidate runoff setup.[1][2][3] That context matters because margin markets are driven by vote transfers, turnout, and invalid or blank ballots, not just which side starts ahead. Reports ahead of the runoff pointed to a meaningful bloc of centrist and anti-establishment voters, while some coverage also noted polls showing de la Espriella with a modest lead, suggesting the spread could still narrow or widen sharply depending on late movement.[2][4]

For traders, the main catalysts are the official count and any late campaign developments that affect turnout or second-round alliances. The runoff was scheduled for 21 June 2026, and market moves are most likely to hinge on election-night transmission, any dispute over invalid votes, and whether one bloc consolidates behind either finalist in the final hours.[1][4] Because the contract resolves on the absolute difference in valid-vote percentages, the exact certified tally matters more than the narrative of victory, so changes in turnout among undecided, blank-ballot, or third-party voters can be decisive.[2][4]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, 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?

On Kalshi UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Kalshi 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.

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.