Trainers & Coaches

Nick Murrieta - Human Performance, Unconventional Training & TribeFit Instructor


  • B.S. Kinesiology- Arizona State University
  • B.S. Biological Sciences- Arizona State University
  • CPT - National Academy of Sports Medicine (NASM)
  • ONNIT Academy - Unconventional Trainer - Level 1
  • Golf Fitness Specialist- NASM
  • The Neuro Institute - Undergraduate Research

A native of Arizona, Nicks interests in health + performance stem from his own experiences, while playing sports and rehabilitating a back injury. Nick attended Arizona State University, receiving a B.S. in Kinesiology (Exercise Science) and a B.S. in Biology with an emphasis in history and neuroscience. While in school, Nick completed internships at Fischer Sports Physical Therapy & Conditioning as well as The Neuro Institute, where he worked with a broad range of clientele from Sports Performance to rehabilitation programs for TBI's and Spinal Cord injuries. This not only have gave him a lot of respect for the human body, but also gave him insight into the potential that each human has to come back and perform.  Upon graduating in 2013, he opened up After it Training, a studio that advocates for community values, efficiency based training and everyday human performance.

Nick aims to tackle the goals of every client unique to them, striving for top performance of both mind + body. He emphasizes the power that the RIGHT HABITS can have in your health and everyday performance such as Nutrition, Sleep and Unique Recovery methods. He maintains that every human being should be passionate about their own Human Performance no matter what profession they are in, because it hinges on the VALUE & SUCCESS of their overall life.

In his time outside of training, he likes to travel, read, hang out with friends & family, and his dog Maggie Moo. 

Rated and quoted by Thumbtack as one of the top fitness professionals to hire in 2015 & 2016.


John Winters - Personal Trainer, Holistic Nutrition


  • B.S. Kinesiology - Arizona State University
  • CPT - National Academy of Sports Medicine (NASM)
  • Performance Enhancement Specialist - NASM
  • Corrective Exercise Specialist - NASM
  • Hypnotherapy - Southwest Institute of Healing Arts
  • Holistic Nutrition - Southwest Institute of Healing Arts
  • Reiki - Southwest Institute of Healing Arts

John Winters has been a personal trainer and health coach for over 12 years. He has a degree in Kinesiology from Arizona State University, is a Certified Personal Trainer through the National Academy of Sports Medicine as a Performance Enhancement Specialist and a Corrective Exercise Specialist, and completed training in life coaching, hypnotherapy, holistic nutrition, and Reiki at the Southwest Institute of Healing Arts. His experience and knowledge with weight loss is not just professional, its personal. While John has helped a variety of people to achieve their weight loss goals, he has found that the personal trials that he has been through have made him more effective and empathetic at understanding the obstacles everyone faces that are keeping them from their goals for better health.

Carrie Markham - Personal Trainer, Pitching Coach, TribeFit Instructor, Head Softball coach at Xavier


  • BS Sports Management – Belmont Abbey College
  • MS Leadership and Organizational Change – Pfeiffer University
  • National Academy Sports Medicine (NASM) – Certified Personal Trainer
  • 2014 INBA Bikini Competition Competitor
  • CPR/AED – First Aid Certified
  • Head Varsity Softball Coach at Xavier College Prepatory

Carrie Markham is a 5th generation Phoenician who decided upon high school graduation to accept a two sport collegiate athletics scholarship in Charlotte, NC.  Upon graduation from Belmont Abbey College in 2009 with a BS in Sports Management, she continued her education at Pfeiffer University receiving a Masters in Leadership and Organizational Change.  After receiving her Masters, she stayed in the south another few years working an internship in the NBA and began her softball coaching career.  In 2012, Carrie decided to make her trek back across the country to her hometown of Phoenix where her love for softball led her to start her own softball pitching coach career which transformed to personal training.  After spending countless hours with female athletes who struggled to perform specific motions with their pitching form, Carrie became more interested in biomechanics and focusing on the differences in the male vs female bodies.  Her experience in working with softball pitchers has not only tested her patience but grown her knowledge in the way the body moves naturally and efficiently.  Increasing body strength and flexibility is the key to softball pitchers success, and I believe it is just as pertinent to the aver women’s body.   Efficiently structured workouts by Carrie will not only help you reach your fitness goals, but will help you manage your personal obligations while taking care of your own health needs.  

Scott Young - Personal Trainer, TribeFit Instructor, Unconventional Training


  • Onnit Academy Certified Trainer - Unconventional Training
  • Fitness Director - Pure Fitness (Tempe, AZ)
  • Apex Health Specialist (24 Hour Fitness)
  • CPR/AED - First Aid Certified

Scott started in the fitness industry in 2010, where he worked as personal trainer and fitness director in Tempe, AZ. Scott has since decided to evolve his training methods by becoming a Certified Onnit Academy Trainer. In addition to common training tools such as the barbell and kettlebells, Scott is able to add more Unconventional Training Methods to his clients' workouts such as the Steel Mace and Steel Clubs, which demand total body control and total body strength. 


CJ Krause - Personal Trainer, Functional Movement Specialist, Strongman Competitor 


  • International Fitness Association- Aerobics, Group and Personal Training

  • International Fitness Association- Nutrition

  • FMS level 1 Certification

  • PowerPlate Certification

  • 18 module Nutrition

Growing up, CJ struggled with maintaining a healthy weight and body image. Until as a teenager, he decided it was time to take control of his health. By developing good exercise habits and focusing on nutrition, over the next few years, CJ lost nearly 100 pounds. CJ has been a certified personal trainer for 6 years and has been a certified nutritionist for 4 years. As he overcame his own weight loss challenges, CJ loves encouraging others to make changes for themselves and gives others the tools to maintain a more active and healthy lifestyle.

CJ has been an obstacle course athlete for 3 years, competing in over 20 Spartan races and various other obstacle courses. He loves the balance of endurance and strength involved in each race.

CJ is going into his third year as an NAS and USS Strongman middleweight competitor and has enjoyed multiple podium finishes this far. CJ currently plays winger and fullback for the Division II Tempe Old Devils Rugby Football Club and loves the competitive nature and the necessary combination of strength and skills required for the sport.

CJ is excited to join the After It team and enjoys all of the services they provide, as they align with his philosophy that functional strength is vital to excel in all activities, whether it be everyday life, athletic pursuits or everything in between.