According to the Diary of a Wimpy Kid Wiki, Greg Heffley is in 7th grade in the "Rodrick Rules" film. However, there are conflicting reports about his grade level in other sources. In a Reddit post, a user claims that Greg is a sophomore in the newest book, which would mean he is in 10th grade. However, this post is contradicted by a CBR article that states Greg seemingly finishes eighth grade in "Hard Luck". A post on the Diary of a Wimpy Kid Wiki also mentions that Greg starts 6th grade in the first book, 7th in the second book, and starts a new grade in "The Ugly Truth" and "Old School". Finally, a semi-autobiographical journal/cartoon book by Jeff Kinney in the guise of seventh-grader Greg Heffley is available only online, with new pages added each day. Therefore, it is unclear what grade Greg Heffley is currently in.