Sierra Morris | Running Mental Performance

Hi! I’m Sierra - the name behind Shattered Runner 🤘🏼

It’s been over a year since I introduced myself and I’ve connected with so many incredible people in that time. So here we go:

I’ve always been interested in human limits and the power of the mind. I’m constantly pushing myself physically and mentally to see what I’m capable of

With my masters in sport and performance psychology, I’ve provided resilience and mental skills training for athletes, US army soldiers and leadership, and now I do the same at the University of Alabama

I started running at the end of 2021 after playing collegiate and semi-professional rugby for 8 years

Since then, I’ve ran 8 marathons including 2 major marathons (Chicago & Boston), a handful of half marathons, and recently started running trails

In 2025, I ran Boston and PR’d with a 3:05. I’m looking at breaking 3 hours within the next year

In September 2025, I started The Run, Shattered Podcast to share mental skills and techniques you can use to shatter your goals and connect with runners who are already training these skills

At the end of 2025, I paced my mom with my sisters in their first ever marathon @everywomansmarathon we will be back next year!

In April 2026, I ran my first 50-mile trail race at Lake Martin 50 (shout out @setrailruns for an awesome race) finishing 1st female, 2nd overall, and 2+ hours under my goal

I’m preparing for my first 100-miler in July 2026 @vermont100mile which is where I spent a lot of time skiing and hiking growing up

I’m here to positively contribute to the running community, share my love of running, and help you strengthen your mental skills so you can shatter your limits - whatever that looks like!