I don't know the answer but i know Penn High School in Indiana has won every conference game for 27 straight years!
The Penn High Kingsmen in Mishawaka Indiana Have won 153 straight NIC conference games. On October 2, 2009 The Mishawaka Cavemen beat the Kingsmen ending their 153 game conference winning streak. Before this game the Kingsmen had beaten the cavemen 34 times. Prior to this, the last time Penn lost a regular conference game was to Elkhart Memorial 7-10 in overtime on September 27, 1985.
thirty three
manitowoc
Clairton bears at 47 wins
texas a & i university back in the late 70s?
steubenville big red.
I do'CAUSE IM THE BEST
Blue Ridge High School won 63 games straight from 1994-98
151 consecutive wins northern California high school, De La Salle
64 consecutive wins by the Pittsfield Saukees between 1966 and 1973.
vito cappizo from Nantucket is 3rd with 293 wins
Longest winning streak is 64 games starting in the 1966 season at Pittsfield High School, Pittsfield, IL
The streak stopped at 89 games (third longest in high school history) when they lost in overtime in the State 5A championship game.