Here is a list of the Portsmouth Trojans 20 win seasons and how each of those seasons ended:
1988: 27-1..........D2 State Champions
2012: 24-3..........D3 State Runnerup
1990: 24-3..........D2 State Runnerup
1991: 22-3..........D2 Regional Runnerup
1987: 22-3..........Class AA Regional Semifinalist
1961: 22-3..........Class AA State Champions
1979: 21-1..........Class AA District Runnerup
1919: 21-1..........No OHSAA tournament at the time
1989: 21-4..........D2 Regional Semifinalist
2011: 21-5..........D3 State Semifinalist
1980: 21-6..........Class State Runnerup
1931: 20-2..........Class AA State Champions
1955: 20-4..........Class AA Regional Runnerup
1984: 20-4..........Class AA District Runnerup
1983: 20-4..........Class AA Regional Semifinalist
1982: 20-4..........Class AA Regional Semifinalist
1981: 20-4..........Class AA District Runnerup
1934: 20-5..........Class AA State Runnerup
2015: 20-7..........D3 Regional Runnerup