Math says differently.
Vincent Crabbe (8): Buckbeak, Remus Lupin, Sirius Black, Luna Lovegood, Dobby, Dudley Dursley, Vincent Crabbe, Mr. Filch,Severus Snape,Voldemort
Cho Chang (1): Draco Malfoy
Sirius Black (0):Vincent Crabbe
Mr. Filch (0):Remus Lupin,Buckbeak
Dudley Dursley (0):Voldemort
Moaning Myrtle (0):Ron Weasley
Ron Weasley (0):Vincent Crabbe
4 hours and 20 minutes remaining!