Stephanie Guilfoyle

Stephanie is a STAR 3 Spinning® instructor originally from Annapolis, Maryland. Wife to a Naval Aviator, she has spent her adult life traveling and living in various states and countries, teaching Spinning® classes in gyms on both US Coasts.

A personal trainer and group fitness instructor, Stephanie holds certifications from NASM, AFAA, Les Mills, and SilverSneakers. She received a B.S. in Mass Communication from Towson University and recently received her M.S in Exercise Science from CALU.


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Happy Memorial Day!

In honor of the Memorial Day holiday, Mad Dogg Athletics will be open from 6am-3pm on Friday, May 27 and closed on Monday, May 30.

All orders placed after 12pm on Friday, May 27 will ship Tuesday, May 31. Have a fun and safe holiday weekend.


-  The Mad Dogg Athletics Team