Colombia Presidential Election 1st round winner?

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Active sub-markets

Market context

Colombia will hold its first-round presidential election on 31 May 2026. The market currently implies zero probability that any single candidate wins outright in the first round—meaning the crowd expects a runoff on 21 June. This reflects the fragmented nature of Colombian politics, where no candidate has secured a first-round majority since 1994, when Ernesto Samper won with 50.4% of valid votes. The country's electoral landscape has become more dispersed over three decades, with multiple viable candidates splitting the vote across ideological lines. Historical precedent strongly favours a second round, making the 0% probability assessment broadly aligned with structural political reality rather than a contrarian position.

The key variables determining whether this market resolves YES hinge on candidate consolidation and turnout patterns. As of early 2025, no single frontrunner commands the polling dominance required for a first-round win. Traders should monitor campaign momentum shifts, endorsement announcements from eliminated primary candidates, and whether any candidate achieves sustained polling above 45%—a threshold that would begin to challenge consensus expectations. The Colombian electoral authority (Registraduría Nacional) will announce official results within days of voting, providing settlement clarity well ahead of the December 2026 deadline. Recent polling volatility and the possibility of a surprise consolidation around a single candidate represent the primary catalyst for YES resolution, though historical patterns suggest this remains a low-probability outcome.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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 Who Will Win, 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.

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 Who Will Win?

Zero. Who Will Win routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.