Devin Olsen started fly fishing in Yellowstone at age nine. He started competing at age nineteen, earned a spot on Fly Fishing Team USA at twenty-one, and has competed in thirteen consecutive World Fly Fishing Championships with Fly Fishing Team USA. He has earned a bronze individual medal and silver and bronze team medals at world championships and numerous medals at competitions in the U.S. Devin holds a bachelor's degree in ecology and a master's degree in fisheries science and worked as a fisheries biologist for several years before founding his online store, Tactical Fly Fisher (tacticalflyfisher.com). He is the author of Tactical Fly Fishing and has produced three instructional films, Modern Nymphing: European Inspired Techniques, Modern Nymphing Elevated: Beyond the Basics, and Adaptive Fly Fishing.