# Lula won Brazil's Presidential election in the first round

*Politics. 43% certain. Monday, 5 October 2026*

> Speculative fiction assembled from prediction-market prices. This has not happened.

**Flávio Bolsonaro placed second and Renan Santos third in the vote.**

On Monday, 5 October, Luiz Inacio Lula da Silva secured the presidency in Brazil's first-round vote. His Victory eliminated the need for a runoff. Flavio Bolsonaro finished in second place with a vote share exceeding 39 percent, while Renan Santos took third.

The contest concluded in a single round, with Lula emerging as the clear front-runner. Bolsonaro's share of more than 39 percent placed him well behind the winner. Renan Santos' third-place finish confirmed the ranking of the top three candidates.

Santos' position reflected a smaller share of the electorate. No other candidate reached the same level of support.

The electoral authority released the final tally on Monday. It confirmed Lula's win in the first round. It also verified Bolsonaro's second place and Santos' third place.

## Analysis

A first-round Victory allows Lula's administration to begin its term without the delay of a second round, giving it immediate leeway to pursue its policy agenda.

Bolsonaro's vote share of over 39 percent demonstrates that a sizable portion of the electorate backs his platform, which may translate into significant opposition influence in the legislative arena.

Renan Santos' third-place finish shows limited electoral weight, but his presence could still matter in coalition negotiations. The precise distribution of votes beyond the top three remains unknown, leaving the balance of power in Congress uncertain.

## What this was built from

- **Brazil Presidential Election First Round Winner**: Lula, 74%; settles Monday, 5 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-winner)
- **Brazil Presidential Election First Round: Margin of Victory**: Lula da Silva <5%, 55%; settles Monday, 5 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-margin-of-victory)
- **Brazil Presidential Election First Round: Flávio Bolsonaro Vote Share?**: 39%+, 86%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-flavio-bolsonaro-vote-share)
- **Brazil Presidential Election First Round: Renan Santos Vote Share?**: 2-4%, 43%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-renan-santos-vote-share)
- **Brazil Presidential Election First Round: 2nd Place**: Flávio Bolsonaro, 72%; settles Monday, 5 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-2nd-place)
- **Brazil Presidential Election First Round: 3rd Place**: Renan Santos, 51%; settles Monday, 5 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-3rd-place)