Complex sentence: The Beavers football program had its best season in school history in 2011, finishing the regular season undefeated and winning the SMAC East Championship, District Championship, and the Regional Championship.
Split into simpler sentences: The Beavers football program had their best season in school history in 2011. They finished the regular season undefeated and won the SMAC East Championship, District Championship, and the Regional Championship.