Sebastian
Serrano-Valladares

Seb Serrano is an Australian endurance runner and lawyer, known for his disciplined approach to training, routine and balanced living. A dedicated Strava enthusiast, he documents the realities of pursuing performance goals alongside the demands of a full-time professional career.

Through his content, Seb shares fitness, training and everyday lifestyle storytelling, with a strong focus on endurance sport and consistency. He has completed multiple marathons, including the Sydney Marathon and Melbourne Marathon, reflecting a long-term commitment to performance-driven living.

Seb has collaborated with leading global and national brands across sport, performance and lifestyle, including Adidas, Nike, WHOOP, JD Sports, Foot Locker, Berocca, L’Oréal Men and Rexona, highlighting his strong alignment with fitness and performance-focused partnerships.

In 2025, Seb was nominated for the AiMCO People’s Choice Award for Best Health, Fitness and Sport Creator, recognising his growing influence and connection with his community. He has also shared his perspective on training, discipline and work-life balance as a guest on The Socius Podcast.

With a foundation built on endurance, structure, and balance, Seb continues to grow his platform as a credible and relatable voice for audiences, integrating fitness, ambition and everyday life.