Get to know our coaches! We believe that we have assembled an amazing group of coaches and influencers that will help your athlete take their training to the next level.

This team is led by two professional coaches who work with athletes worldwide. The team of Peak Performance Running wants to help your athlete grow to love running and achieve their best potential!

Andrew Simmons

Head Coach

Andrew has guided many youth to National and All-American Titles since 2015.  Learn More >>

Katie Whidden

Strength / Assistant Coach

Katie has worked with youth since 2010 with a talent for helping them get to the next level.  Learn More >>

Katie Carbiener

Assistant High School Coach

Dr. Katie Carbiener’s experience as a DPT and as an athlete bring a unique perspective to the Peak coaching team.

Alex Holm

Head Juniors Coach

Alex is a former collegiate runner and current teacher who uses his passion for running to coach the next generation.

Nancy Yager

Head Coach Development Program

Nancy’s background as a school teacher and coach is the perfect combination for entry level runners.  Learn More >>

Colin Lyons

Assistant High School Coach

Colin’s holistic approach to training and his understanding of the sports psychology elevates the Peak Coaching team and our ability to serve the whole athlete.

Could this be you?

Assistant Coach

We’re looking for new staff to help us continue providing world-class coaching for youth.  Apply Now!



Andrew is the Head Coach of Peak Performance Running. Andrew has worked with youth since 2015. Andrew has USA Track and Field Level 2 certification specializing in Endurance as well as Lydiard Certification. Andrew is a full-time running coach for Lifelong Endurance. In 2015 he guided 2 youth athletes to All-American Status in Cross Country, followed up 2016 with a Girls 13-14 National Title, as well as 3 additional and 1 repeat All-American.

Coaching Mentality:

Andrew believes that good form, functional strength and efficient running economy are the building blocks of successful injury free youth runners. Andrew teaches athletes the importance of pacing, speed development and focuses on getting the most out of every workout. He is committed to helping athletes meet and exceed their goals. Andrew believes in coaching consciously and not callously. You won’t find him barking commands but rather asking the athletes to internalize thoughts and feelings when running and developing a feel for tactics, form, and drive.

Get to Know Coach Andrew:

Andrew is a runner at heart and is still competitive in local races across Colorado. He has completed 35+ Marathons, Ironman Louisville in 2011, and ultra marathon cycling events across the Midwest. Andrew enjoys writing and sharing his views on training on different blogs and sites. You might ask him about his favorite kind of coffee or his favorite city he’s visited abroad.

Professional Development:

Andrew is a running coach in Denver, Colorado who works with youth to adult athletes of all abilities and coaches distance running with 5K – Ultra Marathon athletes. You can find his work all across the web from opinions on the Lifelong Endurance blog to training articles on the TrainingPeaks Blog.



Katie Whidden is the Assistant Coach and Head Strength Coach of Peak Performance Running. Katie  has worked with youth since 2010. She has the highly regarded CSCS in strength and conditioning as well as certifications from USA Triathlon and USA Cycling. Katie is a full-time multi-sport coach for Lifelong Endurance. Katie is a former Division 1 athlete playing basketball at Elon University in North Carolina.

Coaching Mentality:

Katie believes that movement is important to the success of youth runners. Katie is the head strength coach at Peak Performance Running and is crucial to the success of our high school and youth athletes. She can make a workout happen just about anywhere and has a keen eye for finding an athletes weaknesses and helping them get to the next level.

Get to Know Coach Katie:

Katie can be found riding her bike all across the front range when she’s not working with athletes. She is an avid explorer with a heart of an adventurer speaking to many of the youth she works with. Katie is an avid learner and is a consummate reader and researcher. Her drive to explore has taken her to multiple countries and is always looking for her next trip You might ask her about her favorite hike in the area, or her work with the GBX Juniors, or her small summer triathlon group.



Alex is currently an elementary school teacher at Compass Montessori School in Golden, Colorado. He is in his 7th year of teaching, and absolutely loves it. Alex has been the head cross country coach at Compass for the last four years.

His experience at Compass has provided him the opportunity to build a program from the ground up. With his love of running, Alex also works are Runners Roost Lakewood! While working at Runners Roost, Alex is able to continue togrow in his knowledge of running, his understanding of the technology available to athletes, and connect with the running community

Coaching Mentality:

Alex’s goal when coaching athletes is to push them to be their best, not only as a runner, but as a person as well! Alex believes that it is important to enjoy what you do. He wants to share his enthusiasm and love of running so that his athletes develop their own love of running. Developing as a human is equally has important to Alex as developing as a runner!

Get to know Coach Alex:

When Coach Alex is not working with athletes or students, he is spending his time with his amazing family. Alex and his incredible wife, Kim, have four beautiful daughters. Alex has two step daughters (Audrey 14, and Molly 11) and two daughters of his own (Hazel 3.5, and Evelyn 1.5). Alex’s family loves to spend time outdoors: running, biking, hiking, or walking their dogs, Lucy and Timber. Alex is still running in races in the Denver Metro area, and is training to continue to improve and tackle his personal bests!



    Colin is an assistant coach with Peak Performance Running. Colin has a Master’s in Applied Sport Psychology and is a Sport Psychology Consultant at Optimum Mental Performance Training in Denver. He has been coaching youth athletes since 2014 from middle school to the NCAA. Colin ran Division I cross country and track at the University of Vermont where he earned a BA in History and a BA in Anthropology. A former high school teacher and 6+ years’ experience working at running stores, allows Colin to understand the needs of a wide range of runners.

    Coaching Mentality:

    Colin is a firm believer in the mind body connection needed for athletes to perform at their best. Through focusing on the process of personal excellence, Colin encourages athletes to adopt a mastery oriented mentality which emphasizes skill development, self-reflection, and enjoyment. Athletes will get used to answering, “what did you do well today?”, “what didn’t go well today?”, “how are you going to make those changes?” and “what did you learn today?”. Colin’s goal is to help runners develop the physical and mental skills to navigate the ups and downs of running, and to be able to use these skills in all aspects of their lives.

    Get to know Coach Colin:

    When Colin is not coaching, he is spending time with his wife Katie, dog Lucy, and cat Lilly. You can usually find Colin doing something outside, be it training for races (800/1600 mostly), hiking, camping, or working in his yard. When forced to go inside, Colin can be found reading about sport psychology, running, physiology, and anything else that piques his interest.



      Nancy, a former school teacher in rural Michigan, transplanted to Colorado in 2017. She was an avid runner with Coach Andrew as part of the Kalamazoo Area Runners. She has worked with youth runners for 5+ years before working with Peak Performance Running, add to that another 15+ years of working with students. She takes her experiences as a coach and teacher and combines them into a program that allows new runners to grow and flourish. She is the Assistant Coach for the Development Program and is a warm welcoming face you will see at every practice.

      Coaching Mentality:

      Nancy is a nurturer and a listener first, she gets to know every athlete and what motivates them and what they enjoy about running. She is an RRCA certified coach and uses her background and knowledge as a runner to help bring kids to where they want to be as runners. Nancy is a major key to the success of Peak Performance Running as she is the coach laying the foundation for the future of our team. She has a keen eye for good running form and is diligent when it comes to progress new runners at a level that challenges them but doesn’t break them.



      Dr. Katie Carbiener is the Assistant Coach with Peak Performance Running. Katie is a Doctor of Physical Therapy and has practiced in orthopedics since her graduation from the University of Colorado-Denver in 2015. She currently treats patients out of Sirona Physical Therapy located in downtown Golden. She has been coaching young athletes since her time in undergrad at Longwood University in Virginia, where she played Division I Lacrosse. Her undergrad degree was in Exercise Science with a focus on strength and conditioning. This has continued to allow her to appropriately train and treat the athletes she works with. She also works at Runners Roost fitting shoes and coordinating their Racing Team.

      Coaching Mentality

      Katie’s primary goal is for her athletes to have fun running AND feel good doing it! She places an emphasis on the work it takes to be competitive, while also teaching her athletes the appropriate rest and recovery techniques required to avoid injury. She is a big fan of the strength programming that Peak provides since this is an integral part of a runner’s success that is often neglected. Katie includes her PT perspective in coaching and emphasizes proper form to help her athletes be most efficient and effective with their gait strategies. The runners will get used to hearing her preach the idea of “quality over quantity”.

      Get to Know Coach Katie:

      Katie loves running and racing and still competes in races across the country. She is learning to accept her love-hate relationship with the marathon distance, but also enjoys working on her speed and strength for shorter distances. When she is not running, she is enjoying the outdoors. She likes rock climbing and mountaineering and tries to plan some peak bagging each summer. Katie also loves all types of bike riding and bike-packing adventures. Her recovery days are often spent enjoying the town of Golden and volunteering with different organizations in town.