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SEALFIT Coaching Staff

SEALFIT Coach - Mark DivineMark Divine
Founder & CEO of SEALFIT and, Creator of Unbeatable Mind

Mark Divine is from upstate New York with a degree in economics from Colgate University and an MBA in Finance from New York University Stern School of Business. Mark’s first career was with Coopers & Lybrand (now PriceWaterhouse Coopers) as a Certified Public Accountant. Clients included luminous financial firms such as Solomon Brothers and Paine Weber.

Four years after joining Coopers, Mark left behind the corporate world to pursue his vision to become an elite Navy SEAL officer. At 26 he graduated as honor-man (#1 ranked trainee) of his SEAL BUD/s class number 170. Mark served for nine years total on Active Duty and eleven as a Reserve SEAL, retiring as Commander in 2011.

Mark embarked on his third career as an entrepreneur in 1996 by co-founding the successful Coronado Brewing Company (CBC) and founding the web e-commerce site He later sold his interest in CBC, but continues to run as the leading web site for gear and information about the SEALs. In 2006 he launched US Tactical, a government contracting business where he gained contracts with Naval Special Warfare Group ONE for training support and with the Navy Recruiting Command for a nationwide mentoring program for SEAL trainees. This latter program was credited with increasing the quality of Navy SEAL candidates and reducing the attrition rate at BUD/s by up to 5% and was the inspiration for SEALFIT.

Mark was an adjunct professor of leadership at the University of San Diego, where he left a PHD program due to the Iraq war Reserve call up. In Baghdad with the SEALs again in 2004, he conducted a special study for the DOD on the role of the USMC in the Special Operations Community. Upon return home he decided to focus fully on his business and family.

Mark is an accomplished martial artist with black belts in Seido and Goju Ryu Karate, a military hand to hand combat certification in SCARS and senior ranking in Saito Nijutsu. He is teacher trained in Ashtanga Yoga, and created the innovative Unbeatable Warrior Yoga program taught to his students.

After working with thousands of special ops candidates and professionals developing mental toughness, Mark self-published his first book Unbeatable Mind in 2011 and launched the at-home study program He is also the author of The Way of the SEAL published by Readers Digest and 8 Weeks to SEALFIT published by St. Martins Press.

SEALFIT is uniquely effective at developing elite level physical fitness and mental toughness. The program has helped thousands to operate at an entirely new level in their personal and professional lives, and is used by military, first responders and sheepdog-like professionals of all stripes worldwide.

Mark is a highly sought after speaker for corporations where his Unbeatable Mind program is helping to forge mental toughness among business leaders. He lives in Encinitas, CA., several blocks from the SEALFIT Training Center, the 20,000 square foot facility where he enjoys training with his family and team.

Certifications, experience, honors
  • CPA, New York State
  • BUD/s class 170 Honor man
  • SEAL TEAM 3 Platoon CDR
  • Commanding Officer, NR SEAL TEAM 1
  • Commander, US Navy Reserves
  • Colonel, Kentucky Order of Colonels
  • Ambassador, SEAL (NSW) Foundation
  • Ashtanga Yoga Instructor training
  • Author, 8 Weeks to SEALFIT, Way of the SEAL, Unbeatable Mind
  • S.C.A.R.S. Military H2H instructor
  • Seido Karate: black belt
  • Goju Ryu Karate: black belt
  • Saito Ninjitsu: brown belt
  • Special Adviser to Women’s Olympic Cycling Team
  • Warrior Yoga founder and head instructor
  • Adviser, Spartan Race inc.
  • Board Member, CSSP, Performance Psychology
  • US Army Master Fitness Course
  • Various special operations courses – advanced Free Fall, SDV Operator, Leadership
Lesser-known Fact:
Mark founded the always-packed Coronado Brewing Company, and was nicknamed Cyborg in the SEALs

lanceDr. Lance Cummings
SEALFIT Coach, Director of Training, SEALFIT

Lance recently retired from Active Duty Navy Service with 30 years of combined Active and Reserve service. He deployed overseas in support of US Foreign Policy with six different SEAL teams on both the East and West Coast. He served at the Naval Special Warfare Center as a Basic Underwater/SEAL (BUDS) instructor where he earned his Master Training Specialist classification. Lance also worked several State Dept. Security Team contracts with private employers during his time in the Naval Reserves

An accomplished athlete, he has represented the United States at the international level in Military Pentathlon and won several Marksmanship awards in inter-service competition in both handgun and carbine categories. From 1990 to 1995, he competed in 200 triathlons, from sprint to Ironman distances. He was on the USA Dragon Boat Team in 2011, winning Gold, Silver and Bronze medals in World Cup competition. His current hobbies include Outrigger Canoe racing, mtn. biking, running, and Crossfit training.

A licensed Chiropractor, Lance also is certified in Cold Laser Therapy, Functional Mobility, Thermal Imaging, and is a registered Emergency Medical Technician.

Certifications, experience, honors
  • Honor Graduate, US Army Master Fitness Trainer Academy
  • BUD/S Class 124
  • SEAL Team and Group Training Officer
  • Certified Chiropractic Sports Physician
  • NAUI Scuba Instructor
  • US Navy Master Training Specialist
  • Certified Veterinary Chiropractitioner
  • Certified Strength and Conditioning Specialist
  • Doctorate in Chiropractic, Life University, Marietta GA
  • BS Education, Southern Illinois University
  • American College of Sports Medicine Fitn
  • TRX Suspension Training Level 1 Trainer
  • Functional Movement Systems (FMS) Level II Certified
  • Structural Functional Movement Assessment Certified
Lesser-known Fact: He once paddled from the Atlantic to the Pacific Ocean through the Panama Canal in 15 hours

SEALFIT Coach - Dan Cerrillo

Dan Cerrillo Cerrillo is a Senior Coach for SEALFIT, and owner of CrossFit Bellevue in Bellevue, WA. Coach Dan is a former Navy SEAL (BUD/S class 194) with more than 13 years experience in the SEAL teams.

While on active duty, Dan completed six overseas deployments, including over a hundred combat operations during Operation Enduring Freedom (Afghanistan) and Operation Iraqi Freedom. Cerrillo was also a Master Trainer at Basic Underwater Demolition/SEAL training.

After leaving the SEALs Dan focused his energy on coaching athletes, Special Operations candidates and professionals in CrossFit and SEALFIT. Coach Cerrillo thrives on forging mental toughness and bringing the best out in his trainees.

Certifications, experience, honors:
  • SEALFIT Certified Trainer
  • CrossFit Certified Level 2 Trainer
  • CrossFit Level 1 Olympic Lifting
  • CrossFit Level 1 Nutrition certification
  • CrossFit Kids certification
  • CrossFit Level-1 Gymnastics
  • Nationally Registered Wilderness
  • Emergency Medical Technician Level-I
  • United States Navy Master Trainer
  • Basic Underwater Demolition / SEAL Training Instructor
  • Nationally Registered EMT-B
Lesser-known Fact:
Dan began his athletic career as a collegiate wrestler and football player at Charleston Southern University.

shane Shane Hiatt joined the navy prior to graduating high school. A former SEAL (BUD/s class 164) he has over 16 years experience in the SEAL teams having served on both coasts.

During his time in the teams Shane did six deployments and saw combat both in Somalia and in Iraq. He was an instructor at the Naval Special Warfare Center Advanced Training Command for Air Ops where he was the LPO, he is a navy master training specialist, and an air ops trainer.

He took a break in service between serving on the east and west coast and went to the University of Arizona where he earned a BA in philosophy with a double minor in political science and naval science.

Shane dabbled in triathlons while in college and after returning to active duty, completing over 50 races including an Ironman.

Certifications, experience, honors:
  • SEALfit Certified Trainer
  • Kokoro Certified Trainer
  • Naval Special Warfare Master Training Specialist
  • BA in Philosophy form the University of Arizona
Lesser-known Fact:
Shane is currently working towards a scratch handicap in golf with aspirations of playing on the PGA Tour.

Chriss Smith
SEALFIT Academy and Kokoro Trainer, Official Training Site owner

SEALFIT Coach - Chriss Smith

Chriss Smith is the founder and owner of Trident CrossFit in Alexandria, VA. A former Navy SEAL with more than 12 years experience in the SEAL teams and other Tier 1 Special Mission Units, he fully understands the necessity of total body fitness, mental toughness, and the roles they play in everyday life.

Chriss believes that the psychology of sport, fitness, and fun are integral components to a healthy lifestyle. His mission is to help others overcome self-doubt and their own perceived limitations, allowing them to unleash their warrior within.

Chriss is passionate about cultivating mental toughness and using functional fitness and SEALFIT to develop character and bring out the best in his trainees. He is a real inspiration to those who have the opportunity to work with him.

Certifications, experience, honors:
    • SEALFIT Certified Trainer
    • CrossFit Certified Level 2 Trainer
    • CrossFit HQ, Level 1 Certified Staff Trainer
    • CrossFit Level 1 Olympic Lifting Certification
    • CrossFit Level 1 Triathlon Certification
  • NSCA Certified Personal Trainer
  • POSE Running Certification
  • Athletes Performance Tactical Mentorship Certification
  • Competitive Ultra Marathon Runner
Lesser-known Fact:
If Chriss told you what he did for 6 of his 12 years in the SEALs, he would have to kill you.


Dan Miller

SEALFIT Academy and Kokoro Camp Trainer

Dan Miller was born in Kalamazoo, MI, and grew up the youngest of four boys in a household where sports and competition were never hard to find. While he played many sports growing up, his real passion was skiing. Dan’s dream of skiing in the Olympics led him to relocate to Winter Park, CO, to train and compete in mogul skiing for much of his young adult life. After retiring from competition, Dan became a ski coach, which provided his first opportunity to mentor and motivate people in physical pursuits.

Despite his love for the mountains, Dan put the snow shovel away in 2001 and traveled to Indonesia, Australia, and Central America. He subsequently landed in beautiful Del Mar, CA, and decided personal training would be a perfect fit for his active lifestyle and competitive nature. Regardless of your experience, Dan will motivate, educate, and provide an entertaining atmosphere for your workout.

Certifications, experience, honors:
  • Kokoro Certified Trainer
  • Crossfit Level II certified
  • Crossfit Olympic Lifting
  • CrossFit Nutritional Certified
Lesser-known Fact:
In 1991, Dan opened Rudi’s Deli in Winter Park, CO. The endeavor became one of his biggest challenges and rewarding experiences. Rudi’s still thrives today. In 2012 Dan opened CrossFit 2120 in Del MAr. CA.

Glen Otero

SEALFIT Academy and Combat Defense Trainer

SEALFIT Coach - Glen Otero

Glen Otero believes the best way to learn something is to combine formal education with practical training and diligent practice.

His mastery of the martial arts came from studying under multiple Kung Foo San Soo masters for a period of four years in San Diego.

Glen Otero learned firearms skills—including rifle, pistol, and shotgun—from Kent Turnipseed, and even earned instructor status with Turnipseed Technique, Inc. He has also learned special tactics and techniques from LAPD SWAT and Heckler & Koch, and is a former NRA Rifle Instructor.

These firearms skills are combined with extensive outdoor knowledge and survival skills. In the foothills of the Rocky Mountains, he trained with the Boulder Outdoor Survival School (BOSS) to learn survival skills in a non-military setting. His time at the National Outdoor Leadership School (NOLS) added a wilderness leadership component to his skill set.

Glen has held concealed carry weapons (CCW) permits in several states, including California. He has worked in multiple security capacities and, on more than one occasion, worked alongside the Secret Service.

Glen holds a Ph.D. in Microbiology and Immunology from UCLA and a B.S. in Biochemistry from the University of Illinois, Urbana-Champaign.

Certifications, experience, honors:
  • SEALFIT Certified Trainer
  • Combat Defense Master Trainer
  • Kung Foo San Soo Trained Fighter Certificate
  • Kung Foo San Soo Universal Fighting Instructor Certificate
Lesser-known Fact:
Glen holds a Top Secret security clearance.


Brad McLeod

SEALFIT Academy and Kokoro Camp Trainer. Official Training Site owner

SEALFIT Coach - Brad McLeod

Brad is the founder of SEALgrinderPT gym in Atlanta, Georgia. Brad is a former Navy SEAL and served 5 years at SEAL Team Four as a radioman, parachute rigger and climber. Brad was dropped from BUD/S class 125 after failing a math test during 2nd phase but returned in class 132 to complete BUD/S – going through 2 Hell Week’s and over 10 months of tough training. He is now a student of mental toughness and conditioning and aspires to help other athletes to apply this to their training.

With skills learned in the Teams, Brad still enjoys rock climbing, trail running, kayaking, Brazilian Jiu-Jitsu and competing in CrossFit events.

Certifications, experience, honors:
  • SEALFIT Certified Trainer
  • CrossFit Level I certified
  • Underground Strength Coach Level 1 certified
Lesser-known Fact:
Brad is almost old enough for his AARP card.

Charles Moser

SEALFIT Academy and Kokoro Camp Trainer.

charlieCharles graduated from buds class 172 and spent 6 years as a Seal at Seal Team 5. He is currently a Swat officer for the Las Vegas Police dept. Charles has conducted over 1000 high risk warrants and over 100 hostage rescues. He is currently a Sniper for the Blue team.

Certifications, experience, honors:
  • Crossfit level 1
  • Sniper Instructor
  • Handgun / Rifle instructor

Jeff Grant

SEALFIT Academy and Kokoro Camp Trainer.

-1Jeff Grant is the founder of Switzerland-based Hillseeker Fitness, a global coaching business for endurance athletes and home of Hillseeker CrossFit. Jeff has a background as an ultra endurance athlete. In 17 years of endurance sports, he has finished some of the toughest races on the planet, including a weeklong run through the Moroccan Sahara, a 37-hour run around Mont Blanc and numerous ultra marathons, Ironman Triathlons and mountaineering expeditions. Jeff was Honor Man of Kokoro 13. After working in an IT and management career for 18 years, Jeff followed his passion and moved into coaching full-time. He coaches athletes in-person and online throughout the world, regularly coaches at

Certifications, experience, honors:
  • Pose Method® Level 2 Running Coach
  • CrossFit L1, Coach’s Prep & most specialty certs
  • 200-hour RYT Yoga Teacher’s Training in Rocket Yoga
  • M.Sc. Information Systems University of Colorado
Lesser-known Fact:
G Jeff studied music initially in college, was the Drum Major for the 300-member UGA Redcoat Band and plays the 10-foot long Swiss Alphorn occasionally in the Alps.

Dr. Derek Price

SEALFIT Academy and Kokoro Camp Trainer

1At home in Arizona, Dr. Price keeps many irons in the fire including his multiple multidisciplinary medical offices along with his Crossfit Gym and Consulting Practice. Derek finds time to train daily with his classes while carving out some additional time to prepare him for his endurance events including Ironman and Alcatraz Open water swim races. That being said his number one focus is set squarely on his beautiful wife Heather and his three amazing daughters.

Dr. Price’s background is not of military beginnings but in the trenches of football where he worked his way through the University of Iowa into the NFL to play for the Detroit Lions. His time in the NFL was cut short due to a severe neck injury which required career ending surgery. Since that time Derek went on to become a Chiropractic Physician, husband, father and multiple time Ironman finisher.

Derek found SEALFIT by chance while in conversation with other SEALs after at triathlon on Coronado. He signed up for Kokoro immediately and spent the next year preparing his body and mind for the 50 hour crucible. After witnessing the life changing effects such a challenge has on a person, Derek made it his personal mission to continue on as Cadre and is currently proud to be one of a very small population of Certified Kokoro Coaches.

Certifications, experience, honors:
  • Honor man Kokoro Class 17
  • All- American JC Grid wire Tight End
  • Western States League Player of the Year 1992
  • Certified Chiropractic Sports Physician
  • Certified Kokoro Coach
  • Certified Crossfit Olympic Lifting Coach
  • Certified Level 1 Crossfit Trainer
  • Doctorate in Chiropractic, Life University, Marietta GA, Honors Graduate
  • Industrial Athlete Championship Founder and Developer
  • Adaptive Athlete Fitness Coach
Lesser-known Fact:
Derek hates cheese, not just a mild dislike but a true hate