Complex sentence: In 1954, Ed Witzberger took over promotion of the track, and eventually formed the Pittsburgh Racing Association (PRA) which raced coupes up to five nights per week including Thursday nights at Heidelburg.
Split into simpler sentences: In 1954, Ed Witzberger took over promotion of the track. He formed the Pittsburgh Racing Association (PRA) which raced coupes up to five nights per week including Thursday nights at Heidelburg.