Complex sentence: The SJR varsity football team had a streak of seven Non-Public Group III titles through the 2005 season, a run ended with a close loss to Holy Cross High School in the first round of the 2006 playoffs.
Split into simpler sentences: The SJR varsity football team had a streak of seven Non-Public Group 3 titles through the 2005 season. This run ended with a close loss to Holy Cross High School in the first round of the 2006 playoffs.