i'm not a comic book guy, but i know the answer, batman defeated superman, but died in the process.
All right guys. In the Frank Miller Batman series The Dark Knight Returns, Batman defeats superman, does not kill him so Superman knows that batman beat him, and fakes his death. This is 10 years after his retirement. I believe he's in his 60's.
Four Graphic Novels:
The Dark Knight Returns
The Dark Knight Triumphant
Hunt the Dark Knight
The Dark Knight Falls