Complex sentence: In fall 2012 sevens competition, the Lions clinched the 2012 Heart of America 7s tournament, defeating Missouri in the semifinals, and defeating Arkansas in the final 21-5, to earn automatic qualification to the 2012 USA Rugby Sevens Collegiate National Championships.
Split into simpler sentences: In fall 2012 sevens competition, the Lions clinched the 2012 Heart of America 7s tournament, defeating Missouri in the semifinals, and defeating Arkansas in the final 21-5. The tournament win also earned the Lions automatic qualification to the 2012 USA Rugby Sevens Collegiate National Championships.