High School Boys'  4x400 Inter-Ac
        
            Event
                191Thursday 4:40 PM
            
        
        
                
                    
                        | Records | 
                    
                
                    | ER | William Penn Charter (Philadelphia, Pa.) | 3:21.06 | 2009 | Ryan Brown, Dareem David, Jeff Calhoun, Shawn David | 
            
                
            
        Nine fastest teams from Events #156-201 (minus #189) qualify to Championship Final, Event #333 (Friday, 4:00 pm). The leading team from the Philadelphia Public League, Philadelphia Catholic League, PIAA District I, South Jersey, Northern Delaware and the Philadelphia Inter-Academic League (events #191-201 and #190 area schools), and the remaining fastest teams from these races qualify for 12-team Philadelphia Area final, Event #332 (Friday, 3:55 pm).
        New Event Record:  Haverford School shaves a few seconds off of the previous best of 3:21.06 by William Penn Charter in 2009 with their time of 3:18.97.