These are most dangerous in groups. Multiple sprinters hitting you at once can kill you in mere seconds, and even faster in multiplayer, but are extremely easy to kill. Even at rank 40 you can kill a sprinter with one well placed Desert Eagle shot.
Special Ability: Spawns frequently and forms a big group
Attack(s): Punches you
Speed: Much faster than Swarmers, a bit faster than a Shadow and the Skeletons and the third fastest zombie in the game, after the Mamushka stage 4.