Colombia Presidential Election Runoff: Margin of Victory

Platform comparison

Active sub-markets

Market context

Colombia’s presidential runoff is the live event behind this market, with the margin of victory defined by the absolute gap between the top two candidates’ shares of valid votes. The first round was tight by Colombian standards: Abelardo de la Espriella led Iván Cepeda by 43.74% to 40.90%, a 2.84-point spread, which is why the runoff has been treated as a competitive race rather than a coronation.[1][2]

For context, the current crowd-implied 1% YES looks far below the first-round result and the broader polling picture. Reporting ahead of the runoff said prediction markets were pricing a De la Espriella win at roughly 80%, while AtlasIntel on 13 June had him on 50.9% versus 43.1% for Cepeda, leaving a much wider expected gap than the first-round margin.[3][4] On Polymarket, that probability is typically shown directly; on Kalshi it is usually easier to compare via the contract price in cents; on Betfair and Smarkets, the same view is expressed through decimal odds, with fees and market-maker spreads affecting the effective price differently across platforms.

Traders should watch for the official final count, turnout, and any late coalition signals or endorsements that can shift second-round vote transfers. The runoff was scheduled for 21 June, and media coverage on 21 June framed it as a contest between continuity under Cepeda and a hard-right security pivot under De la Espriella, which matters because the size of the winning margin depends not just on who wins, but on how undecided, centrist, and blank-ballot voters break on the day.[4][5][8] Availability also differs by venue: Polymarket access is crypto-based, while Kalshi, Betfair, and Smarkets differ in KYC reach and fiat on-ramps, which can affect liquidity and how quickly the market reprices on election night.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Colombia Presidential Election Runoff: Margin of Victory specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi Alternative 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 Alternative 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.

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.

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.