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

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Active sub-markets

Market context

Peru's second-round presidential runoff is scheduled for 7 June 2026, following the first round held in April. The contest will pit the top two vote-getters against each other in a direct head-to-head matchup. This market brackets the final margin of victory in 0.1 percentage-point increments, measuring the absolute difference in valid votes between the winner and runner-up. Traders evaluating this contract need to assess not just which candidate prevails, but the precision of the outcome—whether the victory is decisive (5%+ margin) or narrow enough to trigger automatic recounts and legal challenges.

Historical Peruvian runoffs show considerable variance in margins. The 2016 second round saw Pedro Pablo Kuczynski defeat Keiko Fujimori by 0.24 percentage points, triggering weeks of contested tallies and recount demands. By contrast, the 2021 runoff between Pedro Castillo and Fujimori produced a 1.3-point margin, though still subject to protracted legal disputes. These precedents suggest that margins under 1% carry material risk of procedural delays affecting market resolution, whilst outcomes above 3% typically resolve without significant contestation.

Key catalysts for traders include polling releases from firms like Ipsos and CPI, scheduled for Q1 2026, and any shifts in coalition-building between now and the first round. Conditional order logic should account for first-round results—if either candidate secures an unexpectedly large share in April, second-round margin distributions shift materially. Watch for announcements regarding Peru's electoral authority (ONPE) staffing and any legislative changes to vote-counting procedures, as administrative capacity directly affects margin precision and resolution certainty.

Methodology

We track Peru Election 2nd Round: Margin of Victory? (0.1% brackets) on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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 Polymarket Review 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.

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.

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.