Executive Team

Glenn Seth

RKC, WKC, LMT: co-founder, Master Trainer

Glenn has been training with kettlebells for more than fifteen years after serving as a US Marine, and has certifications from World Kettlebell Club (WKC), Russian Kettlebell Challenge (RKC) and ACE. He has trained with world-class athletes Valery Fedorenko and Catherine Imes. Glenn's unique teaching approach to kettlebell training focuses on flow which, along with fitness and function, give F3 its name. At F3 Wellness Connections, rated best kettlebell workout by the Washington Post, Glenn and his team offer a progression program for new clients to advance their kettlebell practice through four stages, called the Path of the Warrior. For advanced students and local trainers, Glenn offers DC's only kettlebell certification program, The VonSeth Method. He is also a licensed massage therapist with over fifteen years of hands-on training and experience in top spas in and around DC.


Sarah Seth

MBA, HKC: co-founder, Business Manager

Sarah was born in Paris but grew up in Cote D’Ivoire (her country of origin) and France until moving to the USA in 2008 to continue her studies. She became a strong advocate for fitness and wellness after she decided to adopt a healthier lifestyle six years ago, which resulted in a significant weight loss and drastic improvement in her health and wellbeing. Sarah was introduced to kettlebell training and the health and wellness industry by her husband Glenn in 2013 and it automatically turned into her passion. Having witnessed the life-changing effects of kettlebell training, she was inspired to use her business management background to assist her husband in growing their family business and sharing the tremendous mental and physical benefits of fitness training and massage therapy with their community. Sarah holds a bachelor’s degree in Business Administration from Temple University and a Master of Business Administration from University of Maryland University College. She is also a Hardstyle Kettlebell Certified (HKC) Instructor. She loves traveling and discovering new cultures with her family and is dedicated to raising a healthy, happy daughter.


Kettlebell Training


Danny Lamas

B.A, HKC: Head Trainer

Danny is a certified F3 coach and Hardstyle Kettlebell Instructor. He has trained under Master Trainer Glenn Seth since 2011. He has a B.A. from George Washington University in Political Science. He was inspired to take up kettlebells as an enthusiast of author Tim Ferriss' books on entrepreneurship, learning, and fitness. The efficiency of full-body kettlebell workouts in improving functional strength and producing rapid fat loss inspired him to become a regular at F3 for more than two years before becoming an instructor. Danny enjoys presenting clients with new and exciting challenge through consistently varied workouts.



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Simone Egwu


Simone began practicing yoga after years of college sports. In yoga she found peace that hadn't been replicated in any of her other physical pursuits. The mindfulness of yoga practice provided a foundation to cope with her anxiety and depression and brought her to a place of gratitude and presence. She believes that a strong connection between mind and body enables us to appreciate the gift of each present moment. A D.C. native, Simone hopes to share the light and solidarity of yoga with her community and her students. She teaches a slow-burning, earthy flow with plenty of soul and always, always pigeon pose. 




Shelley Green


Shelley provides therapeutic massage to address soft tissue injury and dysfunction, chronic pain, and stress management.  As an experienced therapist, she listens and tailors your session accordingly.  Shelley specializes in Swedish, Deep Tissue, Myofascial Release, Trigger Point Therapy, Precision Neuromuscular Therapy, Reflexology, and Aromatherapy.  She also has had training in Oncology Massage and Advanced Soft Tissue Therapy for TMJ and Dysfunction.


Daniel Bradley


Daniel Bradley works with physically-active adults to maximize their performance and reduce injury in and around training for athletic events. “I have been trained in and focus on sports massage and active release technique. I help my clients enhance their athletic performance through sports massage techniques that include deep tissue work, fascial stretch therapy and active release technique. By integrating these modalities, I’m able to help my clients excel by minimizing acute and chronic injury and promoting faster recovery." From cyclists to runners, swimmers, ballers and everything in between, Daniel is our in-house sports therapist. As an expert in the field of sports massage, Daniel has brought his magic hands to the 2009 U.S. Track and Field Championships, the 2013 U.S. Masters Swimming Championships, the 2012 and 2016 Olympic Track and Field Trials in Oregon, and most recently at the 2016 Capitol Hill Volleyball Tournament. A 2003 graduate of Washington D.C.'s Potomac Massage Training Institute (PMTI), Dan earned his Level One Certification in Fascial Stretch Therapy from the Stretch to Win Institute in Tempe, Arizona. Dan’s areas of expertise include:

  • Deep Tissue Massage

  • Sports Massage

  • Active Release Technique (Full Body Certified)

  • Fascial Release Therapy

  • Kinesio taping


Laura Lopez Rodriguez

Licensed Massage Therapist and Esthetician, RYT

Laura is a licensed massage therapist and esthetician. She is passionate about Holistic Health and became a massage therapist to help people get and stay healthy through the gentle power of touch.

Laura graduated from the Central Maryland School of Massage in Frederick in 2011. She is licensed by the State of Maryland, Virginia and District of Columbia.  She is National Board Certified. She is a Yoga Instructor and a Medical Assistant which is a solid background for recovery.

Laura is trained in a variety of Eastern and Western modalities, specializing in craniosacral therapy, Swedish, deep tissue, lymphatic drainage, and Thai massage.  Laura works with a diverse group of clientele to help ease the effects of pain and discomfort and recover health.


Esthetician Services


Anna Hall

Master Esthetician

Anna Hall is a native of the beautiful country of Armenia. she obtained her certification as Master Esthetician, specializing with advance clinical skincare, chemical peels, microdermabrasion and lymphatic drainage from the Esthetic Institute of Virginia. She takes the time to analyze each individual of their skin textures and skin care concerns. Then she customizes a treatment plan that will help best each client. To achieve this, Anna utilizes and combines only the best natural and organic products of various brands that provide actual results. She does not rely on a brand’s entire product line, rather she researches, identifies and utilizes only the products that have proven successful. She also specializes with various skin care technologies including European-sourced microcurrent, radio frequency, and electric muscle stimulator (EMS) machines. Anna focuses on each client’s specific needs, combining both technological skin care treatments and the best products available. Under Anna’s care, customers discover effective preventative, anti-aging and nourishing skin care.