The SCTA has qualified experienced coaches to lead you through coached group workouts throughout the year as well as special clinics to prepare you for your events.

Steve Doinidis
Anthony Sicola


Steve "Tigger" Doinidis was born in the winter chill of Michigan. A hockey player growing up, he competed in his first triathlon in 2012 on a mountain bike with zero practice in the pool. He moved to Santa Cruz in early 2013 for his beautiful wife, Sara, and the sunshine!

When he's not training, you'll find Steve out surfing or swimming in the ocean, climbing a local crag or escaping into the redwoods of Nisene Marks State Park.

Dave Liotta

Head Coach


Dave got hooked on triathlon in 1985 after competing in the USTS, Del Valle. After he won his age group at the Wildflower long course triathlon in 1986 he went on to compete in the Hawaii Ironman four times having finishing in under 10 hours.

Triathlon became a lifestyle for Dave and after studying philosophy in undergraduate school Dave decided to enroll in a Master’s program in Exercise Physiology. He published research on nutrition and endurance while also starting a side business with a mentor professor focused on testing and advising cyclists and triathletes. This business, “PR Consultants” is now “BeFit Consultants” based in Santa Cruz, CA. Dave still finds time to swim, bike, run occasionally but claims that the third transition into parenthood is at least as challenging and satisfying as any triathlon.

Penni Bengtson

Transitions and Rules

Penni is a Certified USAT Level II Race director and USAT Certified Coach. She owns her own event management and coaching business, Finish Line Productions. She’s been doing triathlon for 15 years and before that was a swimmer and cyclist. Before escaping from Silicon Valley to embrace starting a sports business, she worked at Sun Microsystems and Apple.

Martin Spierings

Triathlon Coach


Martin Spierings has competed in triathlons and running races since age 13 and has twenty years coaching experience working with athletes of all standards and backgrounds. In 2006, Martin formed his online coaching business TriCoachMartin after moving to Santa Cruz, California. Since then, he has coached athletes of all backgrounds and his athletes have achieved Ironman podium finishes, Age Group World Championship qualifications and USA Triathlon All-American honors. He founded a junior triathlon program and has coached club workouts, camps and clinics across the Bay Area. He has also published pieces on triathlon training featured in Competitor Magazine and the Santa Cruz Sentinel.