Complex sentence: The race, which was extended by 12 laps, marked the first time that a race had used three attempts at a green-white-checkered finish, had eight cautions, a record setting 29 different leaders and a record setting 88 lead changes.
Split into simpler sentences: The race, which was extended by 12 laps, shattered numerous NASCAR records: it marked the first time that a race had used three attempts at a green-white-checkered finish. There were eight caution flags, a record setting 29 different leaders and a record setting 88 lead changes.