Stephanie True Peters 
Track Team Titans [PDF ebook] 

Track season is about to begin, and Gerald "Sully" Sullivan is ready and raring to run. But on the first day of tryouts, no other students show up! If the Titans don’t get more members, there won’t be a track team. So Sully pays a visit to the other sports teams, hoping their star athletes will join. None of the other athletes think much of track and field. Sully will have to beat them at their own sports to change their minds. . . .