Runoff simulator for governor in Brazil: build your scenario
Pick a Brazilian state or the Federal District, decide where the voters of the eliminated candidates go and how many do not return to the polls. The calculation uses the final first-round result released by the TSE (Brazil’s electoral court). It is your scenario, not a forecast.
Runoff scenario
Five states and the Federal District decide their governor in the runoff. Move the controls and the result changes instantly.
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Frequently asked questions
What is this simulator?
A scenario calculator for the governor runoff. You decide where the voters of the eliminated candidates go and how many stop voting, and the page redoes the math with the official first-round result.
Does the simulator predict who will win?
No. The result shown is for the scenario you built; it is neither a forecast nor a poll. The official result is the TSE’s, on the night of October 25.
Where do the numbers come from?
From the final first-round result released by Brazil's Superior Electoral Court (TSE) on October 4, 2026.
Which states have a runoff for governor?
Acre, Amazonas, Federal District, Espírito Santo, Rio Grande do Norte and Tocantins.
What is the tipping point?
This is the share of eliminated candidates' votes that each finalist needs to get ahead of the other, given the abstention and non-return rates you chose.