Middle Atlantic Swimming (MASI) is one of 59 Local Swimming Committees (LSC's) of USA Swimming, the national governing body of competitive swimming in the United States. MASI consists of Eastern Pennsylvania, Southern New Jersey, and all of Delaware. We have over 115 member clubs, 11,000+ athletes and 1,200+ officials, coaches
and non-athlete members. 

Our LSC is driven by:

Our Mission
Middle Atlantic Swimming advocates the growth and development of our safe and diverse swimming community through education, innovation and a commitment to excellence.

Our Vision
Utilize the sport of swimming to inspire strong leaders, build character and achieve excellence.

Our Values

A Tradition of Excellence
Of the 200 clubs awarded by the USA Swimming Excellence Program in 2018, 12 were from MASI
Of over 3,000 USA Swimming clubs, 25 of the top 500 are part of Middle Atlantic Swimming. 
Middle Atlantic Swimming has had at least one athlete on each Olympic team since 1952.

Latest Middle Atlantic Swimming News

Exciting New Middle Atlantic Swimming Championship Series Coming in 2023

BLUE BELL, Pa. - For many years, the Middle Atlantic Championship series has brought thrilling moments, captivating crowds, and memories to last a lifetime....

By Scott Day

Eight Middle Atlantic Swimming Clubs Earn USA Swimming Club Excellence Accolades

COLORADO SPRINGS, Colo. - Middle Atlantic Swimming (MASI)continues to be a force on the national level after eight different MASI clubs are recognized by...

By Scott Day

Follow Us Fridays! Join in On the Fun!

This week, we are kicking off a new Fall Campaign with “Follow Us Friday”! We’re kicking it off in a BIG WAY with THREE...

By Scott Day

51 Middle Atlantic Swimming Members Earn USA Swimming Scholastic All-American Honors

COLORADO SPRINGS, Colo. - For the past few months, the hashtag #ChampionsSwimWithUs has circulated amongst the Middle Atlantic Swimming family. That hashtag is not...

By Scott Day

Date and Location Set! 2023 Tri-State Cup

2023 Tri-State Cup will be hosted by Middle Atlantic Swimming @ The Graham Aquatic Center in York, PA. Keep an eye out for more...

By James Platt

Eight Middle Atlantic Swimming Members Earn Spots at USA Swimming Select Camp

Eight Middle Atlantic Swimming Members Earn Spots at USA Swimming Select Camp COLORADO SPRINGS, Colo. - Middle Atlantic Swimming is on the rise. Recently,...

By Scott Day

Meet Director and Operational Risk Director Workshop Schedule 2022-2023

All participants must be non-athlete members of USA Swimming. The workshops are for all new and re-certifying Meet Directors and Operational Risk Directors. Please...

By Mike Seip

SWIMS 3.0 for Unattached Athletes and Non-Athlete members

USA Swimming has launched a NEW online registration process with the Introduction of SWIMS 3.0. All registrations must be completed online. ALL registered members...

By James Platt

Eight Records Fall, Jersey Wahoos Sweep at 2022 LCM Senior Championships

Sideline Photos - Saturday Session Sideline Photos - Saturday Evening Session CARLISLE, Pa. - What a weekend! A weekend filled with great performances, memories...

By Scott Day

Two Jersey Wahoos Earn Their Stars & Stripes This Summer

COLORADO Springs, Colo. - The opportunity to represent your home country is something that very few people ever get to experience. Two current members...

By Scott Day

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