Our Staff

Olivia Graff - Owner & Coach


Instagram: @ohshitcrossfit

Olivia's athletic origins lie in gymnastics and circus arts. After finding CrossFit in 2007, she became obsessed, and three years later left her IT career and opened United Barbell.

Olivia is particularly passionate about helping people who are new to fitness find joy in their growing athletic abilities. Since the birth of her daughter in 2013, Olivia can add helping little ones find their athletic path to her list of passions.

Olivia is a cyclist and is currently focused on training for the cyclocross season and the 2019 Death Ride.

Certified CrossFit Level 2 Trainer
USA Weightlifting Sports Performance Coach
Mobility|WOD Functional Training for Adaptive Athletes
CrossFit Adaptive Training
CrossFit Aerobic Capacity
CrossFit Olympic Weightlifting
CrossFit Movement & Mobility
CrossFit Football
CrossFit Kids
CrossFit Powerlifting

Jason Luk - CrossFit Coach


Instagram: @coachjasonluk

Jason has been CrossFitting for nine years and joined United Barbell after he moved to the city in September 2012 transferring from CrossFit Milpitas.  A former Cross Country and Track Runner, he remains a competitive athlete with his first competition being the 2008 CrossFit Games and has been diving into local competitions as well as entering in The Open every year.

Outside of the gym, Jason is a Wellness Ambassador at AOL where he coordinates healthy office programs and also provides one on one coaching for high-performing individuals who seek to overcome plateaus in certain areas of their life whether it be eating, exercise, sleep, stress or more.  He's committed to helping clients grow into their full potential to lead fulfilled and driven lives after having overcome corporate burnout himself.

Certified CrossFit Level 2 Trainer
Certified Wellness Coach

Jack Lambert - CrossFit Coach


Instagram: @worthxwhile_

Jack is a former Marine whose passion for fitness took him from his career as an EMT into a full time CrossFit coach.

Jack discovered his love of CrossFit when using it to train during his military career. After spending a period of time "bro-lifting," he discovered he needed a more well-rounded training methodology and returned to CrossFit after being inspired by CrossFit Games athletes.

He enjoys petting dogs, drinking coffee, and living his best life.

Certified CrossFit Level 1 Trainer

Lisa Reither - CrossFit Coach


Instagram: @lisareither

More about Lisa soon!

Certified CrossFit Level 1 Trainer

Jon Hanna - CrossFit Coach


Instagram: @j.hanna.sf

More about Jon Soon!

Certified CrossFit Level 2 Trainer
CrossFit Scaling Course
CrossFit Lesson Planning Course
CrossFit Spot the Flaw Course

Dave Huynh - Olympic Lifting Coach


Instagram: @deebeau

Dave was a high school distance runner and tennis player. Ironically, he does neither of these sports anymore, and is a dedicated competitive Olympic weightlifter. His current goal is qualifying for the American Open.

While in grad school, Dave discovered CrossFit after getting a coupon handed to him. He joined United Barbell as an athlete in 2012 and fell in love with the community, making UB his home away from home. After completing much of his CrossFit certifications for his own personal development, Dave decided to embark upon UB's internship program and become one of our resident Oly coaches, moonlighting as "CrossFit Dave" once year during the CrossFit Open.

Certified CrossFit Level 1 Trainer
USA Weightlifting Sports Performance Coach
Masters Olympic Weightlifting Programming with Zygmunt Smalcerz

Jon Ly - CrossFit Coach


Instagram: @jonlyfitness

More about Jon soon!

Certified CrossFit Level 1 Trainer

Tess Candell - CrossFit Coach


Tess’ CrossFit journey began as a college freshman as a rower at George Washington University. Eager to try something new, her father suggested CrossFit. She wandered into CrossFit DC in January of 2012, and was soon hooked. Upon graduating, she began managing CrossFit DC. Seven years later, Tess took a job with Territory Foods (a meal prep and delivery service) and moved to San Francisco. She picked up coaching again at United Barbell. She eats to live and lives for good eats! When Tess isn’t throwing around barbells at the gym, she’s often cooking at home, hiking outdoors or exploring the city.

Certified CrossFit Level 1 Trainer
Certified CrossFit Level 2 Trainer
Precision Nutrition L1 CrossFit Spot the flaw Course

Liran Krell - CrossFit Coach


Liran is a former Israeli Defense Special Forces soldier who was involved in sports - so when he found CrossFit, it was a perfect match! Three years after he started CrossFitting he left his engineering career to become a full time coach.

Liran specializes in gymnastics, but enjoys keeping a well rounded program through CrossFit. His goal is to help athletes move better and feel comfortable being uncomfortable. 

Certified CrossFit Level 1 Trainer CrossFit Spot the Flaw Course CrossFit Scaling Course

Jackeline Rodriguez - Admin, Ray of Sunshine


Jackie is an SF native and former cheerleading athlete who sidelined her fitness until she discovered CrossFit. At first she was intimidated but with the support of her co-workers is now proud to call herself a CrossFit athlete!

In her spare time Jackie enjoys visiting art galleries, museums, traveling, and always living her best life.