This is the double page from the fifth chapter of R.u.N., entitled Time Trial.
R.u.N. is a shonen, sports, high school web manga about parkour.
You can read all the chapters of R.u.N. here: [link]
For more information about the characters and the story, you can also visit our site [link]
Story by: Kariofillis - Chris Hatzopoulos & Raphael Voutsidis
Illustrated by: Manos Lagouvardos