Here is the full list of all 12 Sprinter achievements.
Completed Chapter 1!
Completed Chapter 2!
Completed Chapter 3!
Completed Chapter 4!
Completed Chapter 5!
Completed Sprinter!
Beat Chapter 1 Gold Times!
Beat Chapter 2 Gold Times!
Beat Chapter 3 Gold Times!
Beat Chapter 4 Gold Times!
Beat Chapter 5 Gold Times!
Beat All Gold Times!