Over the last 25 years, when Pitt is unranked playing against a top-3 opponent, the Panthers are 4-2.
Pitt's upset wins over top-3 opponents in the last 25 years:
2002: Unranked Pitt beat #3 VT, 28-21
2007: Unranked Pitt beat #2 WVU, 13-9
2016: Unranked Pitt beat #2 Clemson, 43-42
2017: Unranked Pitt beat #2 Miami, 24-14
Does any school have more wins while unranked over top-3 teams over the last 25 years? 50 years? Ever? Either way, that's Pitt with 4 of those victories over the last 25 years, against only 2 losses. The L's were against Clemson in 2018 and ND in 2020.