PKR is the only party in the country where its national leadership elections take place over several weeks. All other parties in Malaysia can complete the process in a day because of their smaller voter bases.

For example, only 1,209 PAS delegates could vote in the 2017 party election. Umno, which practices an expanded delegates system, had about 146,500 eligible voters in its recently concluded party election.

As for PKR, the party had around 760,000 members in June 25 alone and most of them are eligible to vote.

This site, developed by Malaysiakini and updated weekly, helps readers to keep track of the trends and swings as the election develops.