London Broncos moved off the foot of the Super League on Sunday following a comprehensive victory over Castleford Tigers.
Luke Dorn ran in four tries as Broncos won their first away game in 17 months by 42-20.
Broncos now have 10 points from 24 matches, same as that of bottom side Widnes.
Castleford are two points ahead of Broncos in 12th place.