How to Join

Masters Swimming is not all about competition. It is a means to stay active, recreate, and enjoy new and life-long friendships.

Masters Swimming Ontario (MSO) is an independent organization for adult swimmers.

Any person in Canada 18 years of age or older, with no upper age limit, can participate in masters swimming and is welcome with MSO.

The MSO season starts on September 1st each year and ends August 31st.

In 2017-2018, MSO began operating a fully insured, adult swim league independent of both Swim Canada (SNC) and Masters Swimming Canada (MSC).  The emphasis is on the fitness and social side of adult swimming, and developing programs to help clubs achieve the original vision of master swimming – Fun, Fitness and Friendship through Swimming.

Swim meets will be offered and approved/sanctioned by MSO.  Masters swimming rules will apply. These events will be open to ANY person aged 18 or older. Swimmers not registered with MSO, will be assessed a Single-event Registration fee to purchase MSO insurance ($6 for small meets; $12 for Provincials).

Results and records will be recorded for MSO registered swimmers only and uploaded in the MSO Results Database. There is no connection with MSC or SNC.


Questions?  We have prepared a number of Q&As to help you.  You can also direct your questions to the MSO Registrar at


Swimmer Self-Registration

If you are training on your own but would like to attend MSO-sanctioned swim meets, you can register with MSO as an unattached swimmer. Your swimmer registration number is proof of insurance for any swim meets organized under an MSO-approval/sanction.

Swimmers whose club have chosen not to affiliate with MSO, may self-register with MSO as an unattached swimmer.

Some clubs have affiliated with MSO but allow their swimmers to self-register under their club name. Please indicate your club on the registration form.

Unattached swimmers are members of a club called The Ontario Masters Swimmers (TOMS). Please use this club name and club code when registering for any swimming event.

Your $12 annual registration fee is valid September 1 to August 31st each year.  There is no discount for part-year registration.

The signing of the Liability Waiver and the PIPEDA waiver is incorporated into the online Registration form below.


!!!!!   If you are under the age of 26 years, Rowan’s Law on Concussion Safety requires that you submit, as a condition of registration, a signed confirmation that you have reviewed concision awareness resources.  A reader friendly booklet is available. Please review the materials, complete the Swimmer Form and submit it to  MSO cannot legally register you without this step.  !!!!!!


1. Register and pay via PayPal
2. Register online and pay by interac e-transfer to
3. Register and pay by mail using the form available here.

Please allow about 6-12 hours for the registration to be processed. It is done manually once forms and payments are received.

Local Swim Clubs

Swim clubs provide organized training programs for swimmers. You can meet people, learn swim technique and improve your fitness. MSO provides insurance and swim meet management support for local clubs. If you are looking for a group to swim with, check out the Swim Clubs Tab on our website.  Information is provided on pool locations, swim times, and club contact emails. You can contact the club registrar or show up at the pool!

See you in the pool!

Updated August 9, 2019