For sprint triathletes like Central Point's Katie Guest, you know it's tough physically. But it's just as hard mentally.
Think about it: swimming, biking, running. One right after the other. And Katie does it all solo.
Watch part 1 here.
Previous Oregon Outdoors series are here.
Rogue Valley resident Katie Guest runs on a dirt track in Grants Pass, part of her triathlon training regimen. (Andy Atkinson, Mail Tribune)