Your primary personal training certification from an NCCA-accredited organization (NASM, ACE, NSCA, ISSA) belongs at the top of your resume. Include the certification name, issuing organization, and expiration date. Specialty certifications — corrective exercise, performance enhancement, pre/post-natal, nutrition coaching — add value and should be listed in a dedicated certifications section.

Replace vague claims like 'helped clients reach their goals' with specific outcome data. 'Delivered 12-week programs with 80% of clients achieving their stated goal' or 'Average client lost 18 lbs in 90 days' are the kinds of metrics that build immediate credibility. If you have before/after client testimonials with permission to share, a portfolio link is worth adding.

Personal trainers at commercial gyms are profit centers. State your annual revenue generated from training, your average session price, your client retention rate, and any sales awards or recognition. Trainers who can demonstrate that their chair earns money consistently get the best shift assignments, referrals, and compensation packages.