In 2003, Sumter held a record of 15-4-1, and an overall 18th spot in the massey rankings
and
In 2004, they were 4 spots higher with a 16-5-1 final record.
In 1981, they won their sole state championship in the sport (to my knowledge).
I've also overheard people talking while I've reffed a few cesa games, that the coach of one of the cesa teams was a former Sumter coach, who apparently did a pretty good job their, but I can't remember his name right off the top of my head.