The Bulls are tied with Atlanta but hold the tiebreaker over the Hawks, who play the Knicks in New York Wednesday night.
A Bulls win, or a Bulls loss coupled with a Hawks loss, will secure the fifth Eastern Conference seed and a first-round NBA Playoff matchup against the Brooklyn Nets.
If the Bulls lose and the Hawks win, the Bulls would drop to the sixth seed and face the Pacers in the opening round of the playoffs, which begin this weekend.