Full Breakdown
Jenny Simpson Ends Competitive Running After Cardiac Arrest
8/21/2026, 7:57:01 PM
The Incident and Diagnosis
On June 16, Olympic bronze-medalist Jenny Simpson collapsed while pacing a mile group at the Sir Walter Running Pop-Up Mile in Raleigh, North Carolina. Bystanders performed CPR and used an automated external defibrillator (AED) until emergency medical services arrived. She was taken to UNC Rex Hospital, where she suffered a second cardiac arrest and was placed on life support before being transferred to Duke Hospital for advanced treatment. Doctors diagnosed her with arrhythmogenic right ventricular cardiomyopathy (Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC)), a rare inherited condition that creates scar tissue in the heart and can trigger dangerous heart rhythms.
Impact on Career
Simpson, 39, is a three-time Olympian who won bronze in the 1500 m at the 2016 Rio Games, claimed the 2011 world title, and earned additional World Championship silver medals in 2013 and 2017. She retired from professional racing after completing the 2024 New York City Marathon; the mile she paced on June 16 became her final competitive run. In her own words, the diagnosis makes returning to running “dangerous,” and she declared that “that chapter has ended,” while emphasizing that her broader story continues.
Official Statements & Responses
In an Instagram post, Simpson described her heart as “severely injured and stunned” and her lungs as struggling, yet she noted that both organs recovered enough to function independently within days. She expressed profound gratitude, calling her future “an incredible gift” and affirming that she will keep supporting the running community as chief running officer for Fleet Feet, a role she assumed in February 2024. Simpson asked supporters not to offer apologies but to share that they are glad she is still alive.
Data & Statistics
- Age: 39
- Event: pacing a mile group at a pop-up race in Raleigh, North Carolina
- Diagnosis: arrhythmogenic right ventricular cardiomyopathy (ARVC), a genetic condition that replaces heart-muscle cells with fatty and scar tissue, leading to irregular heartbeats and potential sudden cardiac death
Why It Matters
Simpson’s public disclosure shines a spotlight on ARVC, a condition that can affect seemingly healthy athletes and cause sudden cardiac arrest. Her transition from elite competition to a leadership position at Fleet Feet illustrates how retired athletes can continue to influence their sport, promoting health, confidence, and community engagement.
Verbatim Quotes
- “My future is an incredible gift. It's hopeful, and it will continue to have great purpose,” — Jenny Simpson, world champion
- “My body was dying, but my spirit wouldn't give up. I fought for my life,” — Jenny Simpson, world champion
- “Scar tissue within my heart disrupted its electrical system, triggering dangerous heart rhythms that ultimately caused my heart to stop,” — Jenny Simpson, world champion
- “I'm profoundly grateful that I got to have the career I did,” — Jenny Simpson, world champion
What’s Next
Simpson is slated to discuss her recovery and life with ARVC on “CBS Saturday Morning” and will appear in a podcast episode next month, offering further insight into her health journey and ongoing role within the running world.
