USMS National Records
|M50-54||50 Back (LCM)||Boyd W Johnson||- -80||34.69|
|M55-59||50 Back (SCY)||Boyd W Johnson||05-29-84||30.34|
|50 Back (LCM)||Boyd W Johnson||08-13-83||34.13|
Please submit all record documentation along with a completed Record Submission Form for all swims that are faster than the current records as of the date of the swim.