NYC mayoral race: What you will know on primary night

New Yorkers across the five boroughs will head to the polls Tuesday to cast their ballots in the pivotal Democratic primary elections to select the party’s nominees for mayor, comptroller, the City Council and other key posts.

It’s the first citywide election to utilize the Big Apple’s new ranked-choice voting system, which allows voters in the primary to pick their favorite candidate in the race and then rank four more candidates — eliminating the need for a run-off election. But in the likely event that no Democratic candidate garners more than 50 percent of the vote, the city likely will not find out who the presumed next mayor will be until mid-July. Here’s a guide to what we’ll know and what we won’t know on primary night.