Here is a list of how the Trojans have fared against undefeated teams in the tournament:

1951: Portsmouth 53, Chillicothe 51…….Cavaliers were 20-0 going into this game
1956: Middletown 102, Portsmouth 82…Middies beat the Trojans in the regional semis and go on to win the state
1961: Portsmouth 50, Urbana 44………..Trojans spoil the Hillclimbers perfect 25-0 record
1963: Portsmouth 62, Marietta 51……….District championship; Tigers were 21-0 and ranked #6 in Ohio
1967: Portsmouth 67, Waverly 58……….Tigers suffer first loss in sectional championship
1972: Celina 77, Portsmouth 71 (OT)….Bulldogs were ranked #1 in Ohio; Mike Lovenguth scored 36 points for PHS
1980: Portsmouth 65, Willard 53…………The Crimson Flashes were 26-0 and ranked #1 in Class AA
1987: New Lebanon Dixie 67, PHS 58…The Greyhounds beat the Trojans in the regional semifinals
2005: Ironton 54, Portsmouth 30…………Fighting Tigers finished 26-1 and state runnerup in D3
2009: North Adams 77, Portsmouth 75 OT……Green Devils squeak by the Trojans in sectional final at Waverly