[Panther Thunder]

Interesting data on Undefeated Teams listed on KHSAA website. This might be good fodder for longevity discussion:

UNDEFEATED TEAMS - Total Number of Seasons (Includes no ties)
School (Years)
13 Highlands (1930, 57, 60, 61, 64, 68, 70, 82, 96, 98, 2007, 09, 11)
9 Owensboro (1897, 1904, 06, 09, 14, 17, 29, 45, 74)
8 Danville (1926, 27, 30, 32, 54, 84, 92, 94)
Male (1893, 95, 1924, 37, 43, 51, 63, 64)
Paducah Tilghman (1907, 23, 32, 33, 38, 47, 50, 73)
Trinity (Louisville) (1972, 76, 83, 88, 89, 90, 2002, 11)
6 Ashland Blazer (1929, 30, 31, 33, 35, 42)
5 Boyle County (1963, 99, 00, 01,03, 09, 10)
4 DuPont Manual (1936, 38, 48, 59)
Hopkinsville (1940, 43, 65, 66)
Paris (1943, 73, 81, 82)
3 St. Xavier (1969, 1974, 1975)
Hazard (1928, 30, 36)
2 Bowling Green (1995, 2011)
1 Newport (1936)

Pikeville was undefeated in 1987, 1988. So at least two. Not sure what the MST record was in 1955.