From a drone behind him: Collin running alone on the shoulder of a straight Kansas highway, his long morning shadow beside him

Collin and his crew holding a Welcome Home Collin banner on the Lincoln Memorial steps

Collin breaking the finish tape at IRONMAN Mont-Tremblant in 2022

Collin Chartier. Take your life back.

From a doping ban to a 2,000-mile run home.

Breathwork and mental performance coach, Denver.

Work with me Watch me on Colorado's CW2

Based in: Denver, Colorado
Raced: Pro triathlete, Team USA
Now: Performance coach

Collin Chartier in a black t-shirt, arms crossed, against a dark background

I know the way back because I had to find it.

I spent my twenties as a pro triathlete. I won an IRONMAN and the PTO US Open and raced for Team USA. In 2023 I tested positive for EPO and lost my pro career. That one's on me, and it played out in the news.

The rebuild started with my breath. Learning to regulate my nervous system is how I got my agency back. So I became a coach, built GroundApp, and started teaching the tools that got me through.

In the summer of 2026 I finished a 2,000-mile run home for the Herren Project.

Today I coach people through their own comebacks, one on one, in groups and from the stage. I also help Denver families buy and sell homes with Thrive Real Estate Group. Different work, same job: keep people calm and clear through the biggest moments of their lives.

As seen on

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Running Home

2,000 miles. Boulder to the Lincoln Memorial. For the Herren Project.

In the summer of 2026 I set out from Potts Field in Boulder on a 2,000-mile run to the steps of the Lincoln Memorial to raise money and awareness for the Herren Project, which gives free support for prevention, recovery and resilience to people and families affected by addiction. Every mile was for the people still in the rebuild.

Potts Field, Boulder
Day 1. June 13, 2026. Mile 0.
Mile one, on the track.
The Kansas line
Day 9. June 21. Mile 201.
Norton, Kansas
Day 15. June 27. Mile 320.
Wamego, Kansas
Mile 539.
On WIBW.
Wamego, Kansas
Mile 539.
Thank you, Wamego.
Kansas City
Day 26. July 8. Mile 668.
The crew van, the day before, almost there.
Terre Haute, Indiana
Day 47. July 29. Mile 1,179.
On the road to Indy.
Indianapolis
Day 48. July 30. Mile 1,269.
On WISH-TV.
Dayton
Day 53. August 4. Mile 1,379.
Columbus
Day 57. August 8. Mile 1,454.
On Good Day Columbus.
Pittsburgh
Day 64. August 15. Mile 1,641.
Cumberland, Maryland
Day 72. August 23. Mile 1,799.
The end of the GAP Trail, then onto the C&O Canal towpath.
Herndon, Virginia
Day 78. August 29. Mile 1,977.
On the W&OD Trail, a day from the finish.
The Lincoln Memorial
Day 79. August 30, 2026. Mile 2,000.
Across the Arlington Memorial Bridge to the steps.

Collin and the crew on the Lincoln Memorial steps with Marymount runners, holding a Welcome Home Collin banner — The Lincoln Memorial
Day 79. August 30, 2026. Mile 2,000.
On ABC7, FOX 5 DC, NBC Washington and the Washington Times.

See the run

On Daybreak with Chris Parente, Colorado's CW2.

Pick where you start.

Every path starts the same way: a short note so I know what you're carrying. Then we build the plan.

Collin and a training partner checking their watches on a trail

1:1 Coaching

Breathwork and mental performance coaching built around your life. For athletes, founders and anyone rebuilding after a hard season.

Start 1:1

Endurance & Triathlon Coaching
Private 1:1. Training and race-day mental prep from someone who raced as a pro and finished a 2,000-mile run home. Built around your body, your schedule and your goals.
Ask about training
Group & Corporate
Breathwork and stress training for first responders, teams and companies. Practical tools people use the same day, from a one-off workshop to a weekly class.
Plan a session
Speaking
The fall, the bottom and 2,000 miles back. Talks on resilience, accountability and the nervous system for schools, teams and companies.
Book a talk

Collin sitting cross-legged on a mat in a mountain meadow, smiling

GROUNDED: calm under pressure

First call Nov 3.

For stress, anxiety, poor sleep and the always-on feeling. 90 days of breathwork, nervous system training and mental performance, with a live call with me every Tuesday, so you stay calm when it counts.

RegulateWeeks 1-4
PerformWeeks 5-9
Own itWeeks 10-13
Live callEvery Tuesday

Check-ins at the start, midpoint and finish so you can see the change.

Join GROUNDED Live

Coaching, not therapy or medical care.

In their words.

Owen H., 1:1 breathwork + coaching

From clients' written testimonials and App Store reviews, lightly edited for spelling and punctuation. Some class reviewers received a discount for leaving a review.

GroundApp reviews on the App Store

GroundApp. Breathwork in your pocket.

GroundApp is the breathwork app I built for people who perform. Check in with Bodie, my breathing companion, and he lines up the breath for how you feel. More than 40 techniques, and guided sessions in my voice.

Check In With Bodie: Name how you feel, rate your strength and energy, and Bodie builds a short session from your answers.
40+ Techniques: Box Breathing, Deep Slow Breathing, 2-to-1 and Triangle Breathing are free forever. Premium opens the rest, plus O2 and CO2 tables for dry-land breath-hold training.
Guided in My Voice: Premium guided sessions narrated in my voice. Free comes with a session timer, streaks and basic stats.
Apple Watch + Health: An Apple Watch app, Whoop, Garmin, Oura and COROS through Apple Health, and live heart rate from a Bluetooth monitor.

Free to download. Premium is $39.99 a year (US), with a 3-day free trial for eligible new subscribers. Rated 5.0 on the App Store.

Download on the App Store groundapp.live