59% — Will Flavio Bolsonaro qualify for the runoff in the 2026 Brazilian presidential election
Kalshi 59% · 3 contracts · $0 volume · medium confidence
Updated 2026-08-24 22:50:07 UTC

Why this matters:
This probability indicates a 36% chance that Flavio Bolsonaro will advance to the runoff round of Brazil's 2026 presidential election, where the top two finishers compete in a second round. The market reflects competitive uncertainty about his standing among right-wing candidates and his viability relative to other potential contestants. The main factors influencing this estimate are Flavio's current polling position within the right-wing political space, competition from other center-right and conservative candidates, and any legal or political developments affecting his candidacy. The election's first round, scheduled for October 2026, will definitively determine whether he finishes in the top two and qualifies for the runoff. Current uncertainty hinges on voter preference consolidation among non-left candidates and whether frontrunners Lula (priced at 93%) and other challengers fragment the vote.

Key factors:
- Flavio Bolsonaro's standing in recent public opinion polls relative to other right-wing and center-right candidates competing for the non-left vote
- Legal or electoral barriers that could disqualify him from running, given the Bolsonaro family's history with judiciary decisions
- Vote fragmentation among conservative and center-right candidates, which determines whether any single right-wing candidate reaches the runoff
- Comparison with related contract prices showing Lula at 93% and other conservative candidates ranging from 7-16%, establishing Flavio's relative competitiveness
- Schedule of major campaign events, debates, and polling releases between now and the October 2026 first-round election

Contracts:
- Will Flavio Bolsonaro qualify for the runoff in the 2026 Brazilian presidential election?: Flavio Bolsonaro — 83¢ Kalshi $0 (weight 33%)
- Will Luiz Inácio Lula da Silva qualify for the runoff in the 2026 Brazilian presidential election?: Luiz Inácio Lula da Silva — 92¢ Kalshi $0 (weight 33%)
- Will Renan Santos qualify for the runoff in the 2026 Brazilian presidential election?: Renan Santos — 3¢ Kalshi $0 (weight 33%)

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## Methodology

SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours.

## SF Signal

- SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration.
- No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only.

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*Last verified: 2026-08-24T22:20:50.037Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "59% per prediction markets (SimpleFunctions, August 2026)"
Canonical: https://simplefunctions.dev/answer/brpresadvance
Full data: https://simplefunctions.dev/api/public/query?q=Will%20Flavio%20Bolsonaro%20qualify%20for%20the%20runoff%20in%20the%202026%20Brazilian%20presidential%20election
Provider: SimpleFunctions — https://simplefunctions.dev