The content has been shared, if you want to share this content with other users click here.
Neves' name was mentioned 638,000 times on the microblogging platform on election day, Rousseff's 486,000 and third placed Marina Silva's 150,000.
Rousseff's workers' party was mentioned in 113,000 tweets and Neves' social democrat PSDB party 37,000.
Overall, there were 2.6mn tweets about the presidential elections, according to Twitter's metric tool.
Tweeting peaked at around 8pm, when it was confirmed that Rousseff and Neves would go head to head in a runoff.
The number of tweets related to election day, however, was smaller than the number generated during the final TV debate, aired by the country's biggest broadcaster, Globo TV, four days before the country went to the polls. On that occasion, over 3.1mn real-time mentions of the debate and the performance of the candidates were tracked on Twitter.