Here we are.

Offering pre / post apocalyptic fitness guidance and strength training.


Dynamic experience (both individual and group sessions), RunWild trips, and/or personal consultation.

Zen? So the only zen you'll find is what you come with - so quit looking.


Yolanda Faye

San Francisco

David Butterworth has been a motivational and healthy addition to my life. Butter and I have had various training sessions together; Run Wild, Private Training, Testing online training and I have to say it has all been an incredible experience. Butter takes you as you are: mind, body, and soul and helps you be YOU! And at the end of the day that’s exactly what we each need. Thank you Butter!

Samantha Richards

San Francisco

I trained with Butter for 4 months (unfortunately had to stop when I moved for a job) however, it was the first time I could actually see results in my body. Not only did I see the physical changes but I felt better, more energized and by far much stronger! Training with Butter changed more than just my physical appearance, I learned to love getting up early and accomplishing so much before the rest of the world was awake! Even now, 36 months post move, I have yet to have a similar training experience.

Alyssa Soto


Training with David, I felt I finally had the ability to tap into my inner athlete as he introduced me to a more dynamic way of training. The diversity of his training sessions coupled with his energy of presence allows you to get to know yourself every session and excel at whatever it is. Above all, it’s his positive direction and genuineness to see you for who you are that sets David apart from any other “trainer”.