Liverpool legend Bob Paisley took 95 games to get his 50th league win while Gerard Houllier and Roy Evans both took 102 games to reach the fifty mark.
Only Bill Shankly and Kenny Dalglish have reached 50 wins quicker than Benitez. Dalglish's teams took just 85 league games between 1985 and 1988 to reach 50 wins while Bill Shankly did it in 90 games, although those were all in the old second division.