COVID-19 Statement - click here
- We are open during limited hours: please call ahead of visit
- In-person bike fitting is now available, with precautions

#1 Triathlon Shop in Northern Virginia

Lab Testing and Triathlon Training Programs
Scientific Bike Fitting Lab & Shop

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SPORTFIT LAB in Herndon, Virginia, is the premier triathlon shop and performance center in Northern Virginia, providing a full range of training services and products to suit any athlete, whether you are a triathlete, runner, bicyclist, or swimmer.

Customer Service Expertise
With more than 35 years of experience, we offer a level of personal attention and expertise unmatched in the region. SPORTFIT LAB is our passion and we are dedicated to offering the assistance you need to achieve your sports, fitness, and lifestyle goals.

A Personal Program for Every Athlete
Whether a complete beginner or experienced competitor, no two athletes are alike, and no two SPORTFIT programs are, either.  We use scientific fitness assessments to develop personalized training programs that meet your individual needs.  We teach you techniques for training and racing, and monitor your progress whether you're training for your first race, or your 10th Ironman event.  We understand busy lifestyles, and tailor each program to fit around your preferred training schedule, work schedule, and family schedule.

The Best Equipment and Gear with Personal Guidance
Our fully-equipped Bike and Triathlon Shop provides solutions for all your training and racing needs.  Take advantage of our "Fit-Before-You-Buy" bike fitting service to purchase the best bike for your budget and fitness level.  Equip your bike with the best seat with our Bike Seat Demo Program, or the latest wheels and other parts.  Try on the best triathlon clothing, shoes, wetsuits, helmets, hydration systems, and accessories.  We'll help you find the right product for your level and style -- and offer the best prices you can find!

Bike Repairs and Maintenance
Our Maintenance Director, Rob Crangle (a.k.a. Ashburn Bicycle Repair), offers complete bike building, repair, and maintenance services, here at Sportfit Lab -- and also ON THE ROAD.  We can pick up your bike and keep it in perfect working condition, or upgrade it with the latest components, parts, wheels, or accessories.

Contact us for more information about our comprehensive multisport services.

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Douglas Baumgarten, M.S. - Sportfit Lab Director

• Harvard University Graduate with Master's Degree in Exercise Science
• American College of Sports Medicine (ACSM) Health/Fitness Director Certified
• National Academy of Sports Medicine Certified Performance Enhancement Specialist
• Certified Medical Exercise Specialist
• MSBL baseball All-Star
• Championship Fastpitch Softball Official
• Schwinn Certified Cycling Instructor

Fit Institute Slow Twitch (F.I.S.T.) Certified Triathlon Bike Fitter
• Serotta International Cycling Institute (SICI) Certified Bike Fitter
• International Bike Fitting Institute Level 3 Certified Bike Fitter
• USA Cycling Certified Coach & Experienced (Triathlon) Bike Racer
• Barnett Bicycle Institute Certified in bicycle assembly and maintenance
• Certified Squash Professional – Two-Time Virginia State Open Champion 


Elizabeth Baumgarten, M.S. - Sportfit Coaching Director

• Master's Degree in Public Policy (Peace Operations), George Mason University
• Ironman Cozumel 2011 Age-Group Winner
• Ironman World Championship (Kona) Finisher, 2012
• Amer. Swimming Coaches Assn. Level 2 Certified Coach (2013)
• US Masters Swim Certified Level 2 Coach
• World Triathlon Championships Age-Group 7th Place finish (2017)
• USA Triathlon All-American 2011-2014

USA Triathlon Level II Certified Coach; Training Peaks Certified Coach
• #1 Triathlon Regional AG Ranking
Over 90 Age Group or Overall Female Podium Finishes in Running and Triathlon Races since 2004, from 5K to Marathon & Sprint to Ironman Distance
• Boston Marathon Finisher 2010,2013, 2014
• 2013 Washington Area Runner Age-Group, Ranked Ninth
• Slowtwitch Certified Swim Coach

 Nancy DiPietro - SPORTFIT Triathlon Coach

• Ironman Arizona finisher
• Multiple age-group triathlon winner, sprint to 70.3
• Marathon and ultramarathon finisher

• USA Triathlon Certified Level 1 coach
• Age group winner, REV3 Expert mountain bike series
• Slowtwitch Certified Swim Coach

Dave Hsu
Dave Hsu - SPORTFIT Triathlon Coach

• 35 years of triathlon experience
• Retired US Army Special Forces Officer
• Former Endurance coach for U.S. Special Operations Forces
• 4-time Ironman 140.6 triathlon finisher
• NYC and Boston Marathon (multiple) finisher

• USA Triathlon Certified Level 1 Coach
• B.S. in Exercise Science from University of Louisville
• Certified Exercise Physiologist by the American College of Sports Medicine
• Certified Running Coach through Road Runners of America Club
• Elite cyclist - Kelly Benefit Cycling Team