In the 1970 Interzonal to pick 6 players to go to the Candidates Tournament (along with Korchnoi and Petrosian), Fischer won with 15 W, 1 L, 7 D giving 18.5 points. The next 5 were 3 tied at 15 and 2 tied at 14.
You can change every one of Fischer's draws to a loss in that tournament and he'd still have tied for first.
Then in the Candidates, he played Taimanov, Larsen, and Petrosian.
He beat Taimanov with 6 W, 0 L, 0 D. (Taimanov, a Russian) got into considerable trouble over this. The Russian government did not believe it was possible for a player of his level to be so thoroughly beaten unless it was on purpose. They stopped paying him and banned him from foreign travel).
Then he beat Larsen with 6 W, 0 L, 0 D.
Then he beat Petrosian with 5 W, 1 L, 3 D.