DCF TRAINERS

(alphabetically)

Rob Barnum
Sarah Dillingham
Jimmy Greninger
Rick Heilmann
Jeremy Jones
Josh Jorgensen
Stavros Kalogirou
Mark Lind
Nathan Peterson
Darren Rosten
Luca Zanet

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-- Jeremy Jones (standing!) --
aka: "JJ"
Ht: 6’ 4”
Wt: 210
CrossFit Certification Level II
CrossFit Running and Endurance Certification Level I

Jeremy started with a number of sports at a young age (baseball, basketball, etc.), eventually focusing on soccer for a total of 9 years before moving on to study the Martial Arts.

He began training in Tracy’s Kenpo Karate (a.k.a. Kenpo Jiu Jitsu), a traditional reality based self-defense based system using private instruction as it’s primary medium for teaching. Eventually he became an instructor under Robert Yard and has been teaching Kenpo for over 10 years.

While studying under Mr. Yard, he was introduced to the art of Shootfighting. Containing such things as Muay Thai Kickboxing, Jiu Jitsu, Sambo, (and more), Shootfighting is an art based upon the Japanese version of mixed martial arts started in the late 70s brought to the United States by Bart Vale. Jeremy has been coaching Shootfighting for more than 6 years as well as competing in amateur matches occasionally.

Immediately following an amateur bout in spring of 2004, Jeremy found CrossFit. Even after winning in the ring, his body was brutally beaten by his first WOD (workout of the day). After more than a year of rigorously following the CrossFit method, incorporating it into his Martial Arts practice /teachings, and making occasional visits to the HQ in Santa Cruz, he was certified in the fall of 2005.

Since his certification, he has been running classes at various parks, garage gyms, and at the Martial Arts studio. Currently he is still teaching Martial Arts under Robert Yard in Fairfield California as well as being one of the head coaches at Diablo CrossFit.

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-- Rob Barnum --
Ht.: 6'0
Wt.: 180 lbs

Rob is a 25 year old entrepreneur who has been active in CrossFit since August 2005. At an early age, Rob began training to optimize his performance in various high school sports, notably baseball, basketball and boxing. Training with Humboldt State University's football team, Rob learned the fundamentals for olympic lifting that Rob integrated with his boxing training to optimize his speed and strength training.

When he arrived in the bay area for college, Rob fell into Crew, abandoning olympic lifting in favor of more focused training at the urging of his coaches. After noticing significant losses in strength, Rob retired from crew and returned to the gym with a focus on heavy lifting, pushing his bench press over 350 lbs but also making it difficult to run a 5k...

Shortly thereafter, Rob discovered CrossFit, where he found the perfect blend of the strength and speed training featured in each of these various training regimes. Two and a half years later, CrossFit remains the foundation for Rob's fitness approach.

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-- Luca Zanet --
Ht.: 6'4"
Wt.: 192lb
CrossFit Certification Level II
CrossFit Olympic Weightlifting Certification Level I


39 years old, Luca started in Italy with competitive swimming in his teen age years got tired of it and switched to rugby at 17, played in the under 18 league and then in the first division for a total of 3 season - had to work, thus had to let it go. Started regular weight trainig and cardio just to stay in shape. At age 21 Luca moved to San Francisco, at age 27, started training in Muay-Thai under Daniel Docto at C.K.C. (Concord Kickboxing Club) in Concord. Luca competed in some smoker fights and trained fighters and taught kids classes for about 3 years. C.K.C. closed after 11 years in 2004 so he went to train in San Francisco at the Fairtex gym and sometime later at Gracie in Pleasant Hill. Thanks to his trainer he was introduced to Crossfit 2 years ago, got hooked right away. The rest is history

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-- Josh Jorgensen--
Ht.: 6'3
Wt.: 215 lbs
CrossFit Certification Level I

"Jorgy" grew up in Antioch and started off playing baseball and soccer at a young age. Later, Josh attended De La Salle High School in Concord, and played football all four years, Varsity rugby for the first three years, and lacrosse for one year. Josh played offensive/defensive line and loved special teams, was even a wedge buster on kickoff for the elite DLS football team. Jorgy was awarded Most Inspirational Player his Senior Year and returned to begin coaching freshmen football. Josh is a CrossFit Certified Level 1 Trainer.

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-- Sarah Dillingham --
Ht.: 5'8"
Wt.: 144lbs(5 months preg)

Sarah is a mother of 4 and runs a number of women's classes at The Shed She is an AFAA Certified Personal Trainer (01) and Group Fitness Trainer (00). Sarah's "hobby" is running...very far. She is an accomplished ultra marathoner, having completed several ultra marathons, including the grueling, high altitude Western States 100 miler. Sarah is a confirmed gym rat, teaching Pilates and other fitness classes at several gyms in the East Bay. Teaching and ultras weren't enough for this active mother, so in 2006 Sarah began training in Brazilian Jiu Jitsu and brought home a silver medal in her first competition in Las Vegas. She's soon to become a CrossFit Certified Level 1 Trainer.

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-- Rick Heilmann --
Ht.: 6'2"
Wt: 210lbs
CrossFit Certification Level I

Rick has been involved with sports, especially basketball and football, his entire life. In highschool he played football all four years for the elite, De la Salle. He also played Rugby for one year at DLS. Before starting CrossFit, Rick had a passion for weightlifting and working out. However, 10 months after immersing himself in CrossFit, Rick lost 30 pounds and is the best shape of his life. Rick is CrossFit Certified Level 1.

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--Nathan Peterson--
Ht: 5'10
Wt:180

Nate's pursuit of physical fitness began in high school while training for sports; mainly football, wrestling, and tennis, containing a strong foundation for olympic lifting, endurance training, and speed skills. After excelling in wrestling for six years, Nate's grappling career was quickly ended by a serious shoulder injury. Due to the injury, overall fitness fell to the waste side in college as he presumed the normal collegiate workouts of bench press, preacher curls, and overall mirror watching, but after graduating from Penn St. in the spring of 2006, Nate packed up the car and headed west to California, where he was immediately introduced to the CrossFit program by DCF Trainer Rob Barnum. Since then, Nate has been actively training with the Diablo CrossFit team and looks forward to continuing the trend towards overall fitness.

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--Stavros Kalogirou--
aka: "Stav"
Ht: 5'10"
Wt: 185
CrossFit Certification Level I
CrossFit Nutrition Certification Level I

Stavros currently works for the Santa Rosa Fire Department as a Firefighter/Paramedic. He grew up in the east bay and played sports(football, basketball, baseball) his Jr/Sr year at a local high school. Although he grew up athletic, he was never satisfied with his level of fitness. Once in college he took up running and swimming and immediately got in to the best shape of his life. Trail running on Mt. Diablo and swimming at DVC ended up keeping Stavros in great shape for most of college. Some life changes took place and his fitness declined for a couple of years, it wasn't until he began the pursuit of a new career, Firefighting, that he again took his fitness (and nutrition) seriously.

Stavros trained consistently with one of our other trainers, Darren, at a local "globo-gym" for nearly two years. They both made big "strength" gains and had impressive results...at weightlifting. The lull of the same weightlifting with some cardio routine wore on him and he looked for something different and found Diablo Crossfit. Once that decision was made, there was no turning back. In 2006 Stavros found Diablo Crossfit and began training under Jeremy and Craig. He found The Shed in it's early stages. It was almost empty during his first workout, but he was hooked. He quickly realized his fitness was one-dimensional and not practical to his new career choice.

Stavros left us briefly for two periods during fire academies he was in, and came back for good in 2007 once he was hired with the Santa Rosa Fire Department. He has also learning more about nutrition and using the Zone to increase his productivity at Crossfit. During that time his fitness has excelled. He recently attended a Crossfit Level I certification training and is leading classes during the week as well as private training.