“I credit much of my success and experiences in such a short time to the passion that Jeff has for coaching.”
– Austin Arguello
US Junior National Team Member

“I love the Hammer products! No more gastrointestinal distress from those over-sugared products. This stuff is the real deal!”
– Paul Riso

“Since I began working with Jeff in 2010, I’ve seen huge gains in my cycling performance in terms of speed, endurance and race results. I can’t thank him enough!”
– Kirksey

“I have been racing for years, and with some minor changes in my nutrition, Jeff really made a difference in how I recover.”
– Jan Moss