Colombia Presidential Election Runoff: Margin of Victory

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Market context

Colombia’s presidential runoff is the real-world event here, with Abelardo de la Espriella and Iván Cepeda meeting after a first round that produced a 43.7% to 40.9% split, a gap of just 2.84 percentage points. That matters for this market because the contract is about the **margin of victory**, not simply who wins, so a narrow result is the key reference point; first-round turnout was also the highest ever in a Colombian presidential election, which means late shifts in participation or blank-vote behaviour can still affect the final spread.[1][3]

The current 1% yes price implies the crowd sees an extreme margin outcome as very unlikely, and the first-round numbers do not strongly support a landslide either way. Historical framing points to a tightly polarised race: the finalists together took 84.64% of valid votes, leaving a relatively small pool of third-party support and blank ballots to redistribute, which usually caps the scope for a huge second-round gap.[1] Polling before the runoff had de la Espriella ahead, including an AtlasIntel survey cited by Al Jazeera showing him on 50.9% to Cepeda’s 43.1%, with about 5.9% undecided or inclined to spoil their ballot.[4]

For traders, the main catalysts are turnout, the final alignment of centrist and third-place voters, and any late campaign moves that change how efficiently each side converts support into valid votes. Post-first-round reporting highlighted claims and counterclaims around the count, but the official preliminary result still showed a clear, orderly runoff setup, and the final tally will be resolved on valid-vote percentages rather than raw votes cast.[1][3] If participation falls from the first-round record, a narrower margin becomes more plausible; if one camp outperforms in mobilisation, the spread can widen quickly even without a dramatic swing in preference.[1][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Colombia Presidential Election Runoff: Margin of Victory across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Sport Prediction — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 Sport Prediction, 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.

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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.

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