Jul 23, 2026
In this deeply moving episode of the
Athletics Ontario Running Podcast, we sit down with physician and
competitive runner Danny Grossi to hear a story of unimaginable
resilience and innovation.
After a stellar collegiate career at Princeton, a sudden medical
condition sidelined Danny for decades. His triumphant return to the
sport in his 50s was abruptly halted by a life-threatening blood
clot and severe compartment syndrome. Facing multiple intense
surgeries, doctors delivered a grim warning that he might never
walk again, let alone race.
Refusing to accept this fate, Danny leveraged his extensive medical
expertise and a rigorously data-driven mindset to engineer a
grueling but successful rehabilitation process. This harrowing
journey sparked a powerful new mission, leading him to develop
PIRX, a cutting-edge, AI-powered training app designed to predict
race performance and optimize physiological outcomes.
Tune in to discover how one athlete transformed the terrifying
threat of limb loss into a technological breakthrough dedicated to
helping runners everywhere reach their ultimate
potential.
Learn more about Danny and PIRX at: https://www.instagram.com/pirx.app/
Register to be an Athletics Ontario member: https://athleticsreg.ca/#!/memberships/athletics-canada-road-trail-membership
Check out Hammer Nutrition Canada (and use our special discount code AORP15 at checkout): https://hammernutrition.ca/