TOLL 2021 - 2022 registration underway. TOLL Prep is currently full and we are exploring a potential new outdoor heated site in close proximity to Prep. Contact us for more info. 

Fall 2021 stroke/endurance/in-water registration will begin in late July or early August. Please contact us to receive updates. 


Marcia Tollefson began teaching swim lessons to young swimmers in 1989 at Bethesda Sport and Health Club. Since then, her vision grew into the comprehensive swim program you see today. John and Marcia Tollefson currently head the organization and all four Tollefson sons have either participated as swimmers or coaches or both. In 2010, Tollefson Swimming added the  competitive team TOLL to their offerings.

Teaching Strategies

At the core of Tollefson Swimming is a passion for technique through which the most efficient swimming can be achieved. Coaches focus on improving swimming and technique for every individual swimmer no matter their age, skill level, or desire to compete. Instruction follows a logical path from water safety, breathing, and proper stroke technique to advanced skills, like starts and turns. Tollefson Swimming feels that by addressing parts of a stroke individually and only moving on when that technique has been mastered, a swimmer can truly achieve their best.

Tollefson Swimming offers six main programs to meet the needs of any swimmer:

  1. Semi-private classes for beginners to learn water safety and stroke basics from an in-water instructor
  2. Small deck-coached classes for intermediate and advanced swimmers to refine stroke techniques and learn more advanced competitive skills
  3. Training and Endurance classes for strength and conditioning.
  4. Masters swimming practices and meets
  5. Weekday morning program for home schooled swimmers
  6. Team TOLL, a competitive USA Swimming team that competes regionally as a part of Potomac Valley Swimming

Not sure where your swimmer should begin? Contact us for an appointment so we can observe your swimmers in the water for placement in the proper stroke class. We train a broad range of swimmers from beginners and recreational swimmers to seasonal MCSL and CCSL swimmers, high school competitors, USA Swimming Team members, adults, tri-athletes, and seasoned master swimmers.  Swimmers succeed when they learn and practice proper technique with continued support and guidance. 

Mission Statement & Vision