100M no Snap

In her middle school days, Mizuno Hikari was a hurdler on the track and field team and took her team to the championships. But afterwards, she got in a slump, and turned down the high school track club. However, after competing in the obstacle course at the school's athletic festival, she rediscovered the fun of running and joined the track club after all. As for her inspiration, it's the late Ise Katsumi's older brother, Masami... (translated from here)

Also contains the short story, "Tenkou 120 nichi-me".