Kannan Sundararajan, popularly known as Coach Kay, is a highly respected name in the endurance running community. As the Founder and Head Coach of KaysFIT Academy, he has dedicated his journey to transforming individuals into stronger, fitter, and more confident athletes — driven by a passion for running and a vision of promoting healthy living.
Credentials
M.Sc in Sports Performance Coaching
ACE Certified Personal Trainer
UESCA Certified Ultrarunning Coach
High-Performance Endurance Coach
Race Director — OOTYULTRA & Bison Ultra
Career by the numbers
42
Consecutive marathons in 42 weeks
10+
Years of coaching experience
Coaching philosophy
At KaysFIT Academy, Coach Kay follows a holistic and evidence-based coaching approach. His philosophy focuses on more than just running — it’s about building a strong foundation for long-term performance and overall well-being. Each training plan is personalised and data-driven, ensuring it aligns with the athlete’s goals, lifestyle, and fitness level.
Signature achievements
Founder of KaysFIT Academy — est. 2016
Grown into a leading platform for endurance training, helping runners unlock their full potential through structured coaching and community support.
Race Director — OOTYULTRA & Bison Ultra: visionary behind some of India’s most challenging endurance events, attracting runners nationwide and testing both physical and mental strength.
Completed 42 consecutive full marathons in 42 weeks — bringing unparalleled real-world insight into his coaching methods.
Why train with Coach Kay
Proven track record of athlete success
Real-world ultramarathon experience
Structured, scientific & personalised plans
Long-term fitness & injury prevention focus
Supportive mentor, guide & motivator
Vision & mission
Vision
To build a community of strong, resilient, and mindful athletes who embrace fitness as a lifestyle.
Mission
To provide world-class endurance coaching that empowers individuals to push boundaries and lead healthier lives.
Ready to start your journey?
Whether you’re preparing for your first 5K or aiming to conquer an ultramarathon, Coach Kay and KaysFIT Academy are here to guide you every step of the way.
Train Smarter. Run Stronger. 🏆
