Preston Mudd is a kid and minor character that only appeared in the first book. He was a very good athlete and even made "Athlete of the Month", but on the plaque, his name was put as P. Mudd. Some boys found out it sounded like Pee Mud and they started making fun of Preston for it; he hasn't been seen or mentioned since. This caused Greg to believe he shouldn't do his best in gym class. In the Popularity List, Preston is put in the 420th mark, which is just above Rowley according to the film.
- Diary of a Wimpy Kid (online) Book (First appearance)
- Diary of a Wimpy Kid (First book appearance)
- Diary of a Wimpy Kid (2010 film)
- Diary of a Wimpy Kid: Class Clown
- Diary of a Wimpy Kid Do-It-Yourself Book
- The Wimpy Kid Movie Diary