




P E R S O N A L T R A I N I N G B O X I N G - M U A Y T H A I
G R O U P C L A S S E S & H O M E W O R K O U T O P T I O N




David Hemingway founded K-One Fitness in San Francisco in 1995. K-One Fitness was a premier martial arts training gym that offered classes in Boxing, Muay Thai kickboxing, and Brazilian Jiu-Jitsu. The gym also featured a kids' program that taught Mixed Martial Arts to develop self defense skills and build confidence in children.



The facility was equipped with a full array of personal training equipment and had a dedicated team of personal trainers. It included two training areas and a boxing ring. Hemingway is a 2nd degree Blackbelt in a Kyokushin based system and was a Northern California Golden Gloves Champion. Hemingway is also a Certified USA BOXING COACH.
Hemingway was present at the gym daily, teaching, training, and fully embracing the blood, sweat, and tears lifestyle that he loved.





