Anytime Fitness gym in Berkeley

David Guthartz brings over 35 years of study and instructional experience in yoga and fitness training to his clients at Anytime Fitness. He has been continuously certified since 1995, by the American College of Sports Medicine, and has worked as a Personal Trainer at UC Berkeley RSF for 18 years, attracting a varied and loyal clientele including students, senior staff members, performing artists, and internationally renowned academics. David enjoys working with people from diverse cultural backgrounds, of all ages, and fitness capabilities, and considers his training in yoga to be the foundation of his approach to developing fitness programs that are optimized for each unique individual.

Lily is a fitness enthusiast turned personal trainer who hails from Los Angeles. She is an accomplished equestrian, as well as an animal-lover, actor, and fantasy nerd. Lily loves exploring new modes of exercise, and is experienced in a variety of disciplines including weightlifting, Pilates, barre, yoga, and interval training. She finds inspiration in the outdoors, and often finds herself applying the skills she practices in the gym to mountain biking, hiking, and backpacking. Lily believes whole-heartedly that exercise is a time to not only challenge yourself, but also have fun with your body! She always strives to bring imagination, presence, and positive vibes to her sessions, and values the ability of fitness programming to promote whole-person well-being and mind-body awareness as well as to boost clients towards their specific health goals. FUN FACT: If you see her around, ask Lily to show you her strobe-effect hand trick, or to recite some Shakespeare!

My main educational background is a Bachelor's degree from U.C. Berkeley, which is arguably the most unrelated subject to exercise/fitness, is English literature. My major kept me sedentary for most of my undergraduate career, but toward the end of college, with the help of some friends and social media’s growing display of strong, powerful women in the gym, I became fascinated with weightlifting. When I began weight training, I started to feel more energized throughout the day and more confident in myself, to sleep better at night, and to experience everyday life with more self-compassion and resilience than ever before. As a personal trainer with a less conventional background in fitness than most, I want to help others experience how exercise can benefit their lives holistically the way I have. I'm here if you ever want to geek out about exercise, swap restaurant recommendations, or just say “hi.” Fun Fact: I cut my own hair

Magdalena was born and raised in northern Sweden and started working in the fitness industry in 2013. She has dedicated a significant amount of time to working in sports labs to gain a deeper understanding of the human body. Over the years, Magdalena has been fortunate to collaborate with various teams, groups, and individual athletes to help them enhance their performance and overall health. She also has a background as an educator, where she certified Personal Trainers. While Magdalena enjoys working with a diverse range of clients, her particular passion lies in endurance sports. She describes herself as a "complete endurance nerd" and expresses a keen interest in creating training programs for events like 5k runs, marathons, and triathlons. Fun Fact: Watch out! Magdalena grew up with two older brothers and thereby knows how to wrestle.

Dario Mathias is Brazilian and has been passionate for sports since he was a child when he started playing soccer. This passion led him to pursue a Bachelor's Degree in Exercise Science, which he achieved in 2005. After that he completed two postgraduate courses in Physical Exercise in Aging and Disease. Dario has been a group class’ instructor and personal trainer for the past 10 years and is known for his fun and friendly personality.

In 2014, Dottionna felt ungrounded, overwhelmed, and that she lacked control over the direction of her life. That’s when she discovered yoga—a practice that not only anchored Dottiona but also became a guiding force for transformation. Through yoga, Dottiona began to reconnect with herself, cultivating strength, flexibility, and a sense of inner peace she hadn’t known before. With each session, she felt more empowered, grounded, and capable of navigating the ups and downs of life. Over time, her practice evolved, leading her to pursue a 200-Hour Yoga Teacher Training certification, specializing in Hatha, Vinyasa, and Ashtanga yoga. Today, Dottiona is passionate about sharing the profound benefits of yoga with others, helping them find their own center amidst the challenges of life. Whether you’re stepping onto the mat for the first time or deepening an existing practice, she’s here to guide you on a journey of self-discovery, balance, and empowerment.

Daly is an East Coast native, transplanted to the Bay Area during high school. She did competitive gymnastics in her youth and has been engaged in various forms of physical activities to date; strength training, yoga, trx, running, swimming, hiking, cross fit, bar method. She formed her passion for health and wellness at an early age while traveling with her family to destination spas, and continues to nurture that interest with various courses, certifications and an extensive home library. Daly loves working with people, especially with an aging population, and helping to guide them in the preservation of health, strength and mobility throughout their lives. FUN FACT: In her youth, bewitched by a beautiful Ukrainian aerialist from Cirque du Soleil, Daly was compelled to take 3 years of flying trapeze in hopes of joining the circus.

Though a lifelong fitness enthusiast, it was only recently that Dash discovered a deep interest in becoming an advocate for others to achieve their goals of health, form, and functionality. He is presently on a course of study for an NSCA-CPT certification. His approach to fitness prioritizes simplicity, consistency, and specificity, eschewing fads and novelty in favor of base strength and fundamental movement patterns which carry over to general physical capacity in all areas of life.

Amy fell in love with weight training when she was in school. Lifting weights not only helped to shape her physique but it strengthened her inner sense of self. Because she was physically stronger, she felt more empowered and capable of being active and injury free. Amy continues to prioritize strength and resilience training no matter what activity she explores. She believes it is so foundational for preventing and mitigating injuries, sport performance, and daily functional movement. As a trained educator, Amy has decades of experience teaching and helping others reach their goals. With a background in weight training, martial arts, cycling, TRX, body weight training, jump rope, and StrongFirst hardstyle kettlebells, she will help you to become stronger and more resilient so you can perform at your best no matter what you are doing or how old you are.

Florian brings decades of health, fitness, and movement practices to his work as a Personal Trainer. As a former physical therapist and Aikido instructor, Florian has an extensive knowledge of working with people through the mind-body connection. Florian’s approach to health and wellness is to build a healthy and strong body and spirit to last a lifetime. He strives to provide personalized training sessions that are fun, focused and mindful. Florian continues to be inspired by his own training in ‘Systema’, a Russian system of health and combat practices as well as TACFIT Training Methods, and ‘Strong First’ Kettlebell training .

Alezander was born in Merced but grew up in Richmond - spending most of his life in the Bay Area. As a kid, he was always active, often playing soccer or competing in small tournaments. Currently, he is studying Business Administration at the Haas School of Business at the University of California, Berkeley, and is on track to graduate in May 2025. When he’s not hitting the books, Alezander enjoys going to concerts, traveling, and spending time with friends. Fun fact: he’s left-handed!

Molly grew up in Davis and she spent a lot of her time swimming, running and biking around town. She played water polo in high school and did competitive synchronized swimming for 13 years. She recently graduated from California State University, Chico where she got her BS in Exercise Physiology and hopes to become a personal trainer. She enjoys spending her free time playing pickleball, going on runs and weight lifting. Apart from exercising, she enjoys baking and cooking. She started making her own sourdough bread and is always looking for fun new recipes to try! Fun Fact: Molly is fluent in Spanish and hopes to travel to Spain some day!

Christelle is a self-described cartoon character come to life, passionate about everything from singing/songwriting to fitness, mental health, and marketing. Born and raised in San Jose, CA, she’s been performing since childhood—whether it was singing in choirs, dancing to music video choreography, or practicing hula & Tahitian after school. Fitness became a big part of her life when she, her mom, and her sister Krissie (an AF Berkeley member!) started bonding over Tae Bo exercise videos. That passion eventually led her to strive to one day become a fitness instructor herself. Fun Fact: Christelle’s first performance at age 5 was with Lea Salonga (yes, the voice of Disney’s Jasmine & Mulan!). And she’s only been injured once– from doing a TikTok dance. 🙈

Monique began her sports journey at the age of 5 playing basketball at the YMCA. From there her love of multiple sports and being active developed more as she grew up in the Bay Area. Watching the Cal vs Stanford women's basketball game solidified her wanting to play competitively once she got older. From Varsity all 4 years and 3 years team captain of the girls basketball team at El Cerrito High school she got the opportunity at the early age of 15 to play overseas in China. From there she played at Las Positas College amounting #1 Leading Rebounder of the state California Juco, following the same year receiving All American Honorable Mention in the US for Women's Junior College Basketball. Monique is also currently pursuing a Kinesiology B.A degree at San Francisco State University while playing on the Women's basketball team. Fun Fact: She can play Wicked’s ‘Defying Gravity’ on the drums!

Brandon, a true Bay Area native, grew up playing baseball at St. Mary’s College High School, just around the corner from the gym. His love for staying active extended to the outdoors, where surfing and hiking became his go-to activities during college. Holding a BA in Anthropology and a Masters of Science in Exercise Science: Sports Nutrition, Brandon is a well-rounded fitness professional. Not just an academic, Brandon has also showcased his physical prowess by competing in Men’s physique bodybuilding and powerlifting in the USAPL Federation in the 82.5kg weight class. His diverse background and achievements contribute to the dynamic and knowledgeable fitness environment he brings to the community. FUN FACT: Brandon is on his impressive journey toward a 1000lb total in powerlifting, conquering the big 3 lifts: squat, bench, and deadlift.

Natalia was born and raised in Berkeley where she grew up taking advantage of the Bay Area's outdoor recreation. Growing up, she enjoyed playing soccer, volleyball, hiking and running. Natalia recently graduated from the University of California, Santa Barbara where she received a B.A. in Sociology after transferring from Diablo Valley College in Pleasant Hill. During her time away at Santa Barbara, Natalia took time off from working out. Now that she's back in the Bay and working at Anytime Fitness, she looks forward to slowly getting back into being active again! During her free time, Natalia enjoys spending time in the sun, watching reality tv shows, and trying new food spots around the Bay! FUN FACT: Natalia is a master juggler!