I was thinking about things like outrunning zombies, and that of course led me to thinking about other monsters that a runner would fare well against.
The Mummy. As long as we're talking about the shambling revenant style mummy a runner should do fine. If the mummy is using magic and mind control there would be some trouble.
The Wolfman. Sorry runners, not much hope here, with wolf augmented strength and speed runners would be overtaken.
Frankenstein. Runners against the old black and white movie Frankenstein would do fine, the Frankenstein from the novel would be to fast and strong.
Dracula. Running itself isn't any good against Dracula, but if you get enough garlic at the pre-race pasta dinners. . .
What other monsters could you outrun?