Supporters of President Luiz Inacio Lula da Silva and challenger Flavio Bolsonaro staged competing rallies in Brazil on Saturday, filling streets on the eve of a tightly contested presidential election.

Tens of thousands took part in the demonstrations as the incumbent and his right-wing rival brought their campaigns to a close. Lula supporters gathered in red at Copacabana beach in Rio de Janeiro, while hundreds of motorcyclists rallied for Bolsonaro.

The rival gatherings provided a public display of the political divisions surrounding the election in Latin America’s largest nation. A bitter campaign has deepened polarisation as voters prepare to choose between the president and his challenger.

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Copacabana was a focal point for Lula’s supporters. Their gathering placed the incumbent’s campaign visibly on the streets as the contest approached its conclusion, with red dominating the beachfront demonstration.

Bolsonaro’s supporters offered a contrasting display, with hundreds of bikers revving their engines. The motorcycle gathering marked the right-wing candidate’s own show of support during the final campaign events.

The overall attendance figure describes participation in the demonstrations, rather than the candidates’ respective shares of electoral support. The gatherings showed that both sides could mobilise supporters, but do not establish which candidate was ahead nationally.

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The distinction matters in a contest described as close. Neither the combined street turnout nor the number of motorcyclists provides a measure of the eventual vote, and the available account gives no separate attendance totals for the two camps.

With the campaign ending, attention now turns from the competing demonstrations to the presidential vote. The election follows a divisive contest in which both the incumbent’s supporters and those of his challenger made their presence visible as the campaign drew to a close.