Shadow Guard and 5 Red Guards vs Grevious and 5 Magna Guards

Except in LoE, he didn't. He killed four rather crappy ones, including the two who accompanied Shaak Ti in the cartoon, and then was defeated by Mace, not Force-crushed.

Originally posted by Lightsnake
As far as I know, it's a bit of a blend...Mace's duel happened, Grievous did kill a lot of Jedi on Coruscant and he did beat Shaak Ti