Complex sentence: In 2005 and 2006 the forensics team placed second in the state and in 2007 they won 5A state breaking the all-time state record for number of points with 392, proceeding to win state four times in a row through 2010.
Split into simpler sentences: In 2005 and 2006 the forensics team placed second in the state, and in 2007 they won 5A state breaking the all-time state record for number of points with 392. They then proceeded to win state four times in a row through 2010.