USA Swimming ID Number


USA Swimming undertook a major effort to develop a new identifier [ID number] for its members in the 1999 membership year. Every member of USA Swimming will have a unique ID number that will rarely, if ever, change. This number will be issued to athlete and non-athlete members.

Formula for Determining USA Swimming ID

The USA Swimming ID number will be easy for you to remember: your date of birth [MMDDYY], the first three letters of your legal first name, the first letter of your middle name, and the first four letters of your last name. If your first or last names don't have enough letters [or you don't have a middle name or middle initial], an * [asterisk] will be used to fill in the blanks. Here are some examples:

Legal Name

Date of Birth

USA Swimming ID Number


Rose August Buchman

born 05/16/78


Preferred name of "Sissy" not used in ID

Thomas O'Neal

born 09/12/65


No apostrophe in USAS ID

Ty H Ng

born 04/05/80


Short names are padded with *

Mary Catherine Martin

born 06/19/86


Legal first name is "Mary Catherine", no middle name

George Jackson Fry, Junior

born 07/08/96


Generational suffix Jr, Sr, III etc. not in USAS ID

If Rose prefers to be called "Sissy" the registration procedure will now accommodate her. Her membership card will be issued with her preferred name printed on it. She will be entered in meets as she is registered, with her full legal name and her preferred name of Sissy Buchman will print on the meet reports. By the unique ID number, USA Swimming will always know who Sissy really is [Rose August Buchman, born 05/16/78.] If, as Sissy ages and matures, she decides to not use her preferred name and begins using Rose, her swimming history will always remain with her.

Once assigned, your USA Swimming ID number should never change. What is crucial is that, once assigned, your ID is unique across the entire USA Swimming membership. No matter where an athlete goes, the ID number will always identify who they are.

It is crucial that everyone realize the importance of providing complete and accurate information on the registration form for your USA Swimming ID number. It is also very important that you remember your new ID number and always include it on forms when asked to do so.

Privacy Issues

The USA Swimming ID is considered private information along with the individual's birthdate. Please refer to the USA Swimming Privacy Policy for clarification. The ID's are for the conduct of official swimming business only.

Frequently Asked Questions

  1. Q: What happens if there is a duplicate number?
    A: When a duplicate occurs, which should be rarely, the USA Swimming computer will know and USA Swimming National Headquarters staff will change the number of the second individual. If this happens to you, the LSC Registration Chair will generate a new membership card as well as notify the athlete's swim club.

  2. Q: Why is this formula being used?
    A: USA Swimming considered assigning a random number. The feedback received was overwhelming that the number needed to be something kids and parents could remember easily. Those individuals who were speaking from a meet management perspective thought that including the birth date was critical. Social Security Numbers were ruled out due to privacy act requirements.

  3. Q: How will USA Swimming benefit?
    A: It is critical to the growth of our sport that USA Swimming monitor the progress of every member. This is in effort to improve athlete retention, follow athlete development, and enhance our ability to secure sponsors. USA Swimming will improve its focus and its capacity to evaluate USA Swimming programs and their costs.