Welcome to L4 Swimming!  Here's the latest news:

AU is requiring and issuing entry passes for L4 swimmers. No swimmer will be admitted without one. Email julie@l4swimming.org to coordinate with AU for your pass.

There's an upcoming swim meet at American University for which we'll have to cancel practice.  The date:

  • Friday 10/28/22
Other than these days, AU is open for business, with practices 6 days a week.  Come by and give AU a try!

Welcome to Lane 4 Swimming (L4), one of the largest and most diverse adult swim teams in the nation.  We are an all-encompassing Masters team, gladly accepting all ages and abilities.  

Our vision is quite simple: to provide the absolute best pool and open water training opportunities for adult athletes, all at reasonable cost.  We do this by offering convenient workout locations in DC and suburban Virginia, some of which are sure to align with your schedule and home/work locations.  Unique on the East Coast, our athletes can attend workouts at 8 different locations (11 in the summer) at one low cost.  
We encourage prospective new swimmers to try us out for a swim at no cost.  Visiting USMS-registered Masters swimmers may join our workouts at no cost while you are in the general DC area.

Frank Marcinkowski, Head Coach, & Founder

Welcome to L4 Swimming!  Here's the latest news:
American University is back!  Workouts start Monday, September 11.  Here's the schedule:

Monday: 6:45pm-7:45pm 

Wednesday morning: 6:30am-8:00am

Thursday: 6:45pm-7:45pm 

Friday: 6:30am-8:00am

Saturday: 12pm-1:30pm

We've added Takoma Park pool for Sunday workouts! On Sundays we now have Takoma Park 10:30am-Noon starting this Sunday Sept 10. We will not hold practices on Sept 24 and Oct 8 due to swim meets.

Old Keene Mill? Our regular schedule will continue at OKM through Friday, September 15.  

Interested in seeing the fall schedule?  We're reverting to a schedule very similar to last years.  For details, please look at to calendar to see when various practices are restarting.

Interested in swimming at American University?  AU has specific requirements for entry to the building.  If you're trying AU for the first time, contact Julie at julie@l4swimming.org before you go, she'll let you know the procedures.