Peru Election 2nd Round: Margin of Victory? (0.1% brackets)

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Market context

Peru's second-round presidential election on 6 June 2026 will determine which candidate advances with a simple majority of valid votes cast. The margin of victory—the percentage-point gap between first and second place—is being priced at 0% YES across all 0.1% brackets on Polymarket, suggesting traders currently assign negligible probability to extremely narrow outcomes. This pricing reflects either confidence in a decisive result or insufficient liquidity to establish meaningful odds on granular margin brackets. The market settles on the absolute difference in valid vote percentages, excluding blank and spoiled ballots, making the exact turnout composition material to final resolution.

Peru's runoff elections have historically produced variable margins. The 2016 second round saw Pedro Pablo Kuczynski defeat Keiko Fujimori by 0.24 percentage points—one of the tightest margins in recent Latin American presidential history. The 2021 runoff between Pedro Castillo and Fujimori yielded a 1.59-point margin. These precedents establish that Peruvian second rounds can produce outcomes within the 0.1% bracket range, though such tightness remains exceptional rather than typical.

Traders should monitor polling releases from firms including Ipsos Peru and CPI through early 2026, as second-round matchup preferences shift substantially once first-round results eliminate candidates. Campaign spending disclosures and regional turnout patterns in the first round will inform margin expectations. Constitutional court rulings on candidate eligibility—a recurring feature of Peruvian electoral cycles—could alter the final matchup composition and thus the margin distribution.

Methodology

This page reviews Peru Election 2nd Round: Margin of Victory? (0.1% brackets) 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 Polymarket Scam? — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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.

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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.

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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.