Welcome to KaysFIT Academy

At KaysFIT Academy, we blend running, knowledge, and motivation to help you become your best self. Whether you’re chasing marathon goals or building a stronger endurance mindset, our science-backed, experience-driven coaching is here to support you every step of the way. We help you reconstruct your health and running foundation so you’re ready to go the distance. Ready to begin? Let’s do this together.

We’re also the proud organizers of some of India’s most exciting ultramarathons—OOTYULTRA (9th edition on 22-Mar-2026, Sunday), Bison Ultra, an ITRA-certified trail race (7th edition on 8-Jun-2025, Sunday), and the Madurai Ultra. These aren’t just races—they’re powerful journeys through breathtaking trails, hillscapes, and heritage-rich towns that blend the thrill of running with exploration, sports tourism, and cultural immersion.

Through these experiences, we nurture the spirit of the #ultramalaivasi community—a vibrant group of runners, volunteers, and locals who love the mountains, cherish the outdoors, and are passionate about giving back. Our races celebrate not only nature’s raw beauty but also the rich traditions, stories, and hospitality of the regions we run in. By connecting with the land and its people, we aim to preserve their charm while creating shared value for everyone involved.

Come, be a part of something meaningful. Let’s run with purpose, together.

OOTYULTRA Marathon, a tough race for everyone!

OOTYULTRA is a challenging ultramarathon road running event organized annually in Ooty, India since 2018 by KaysFIT Academy for runners of all levels from beginners to ultramarathon enthusiasts

9th Edition on 22-Mar-2026, Sunday

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Registration starts on 31-Oct-2025

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Read the 8th edition race report

Bison Ultra Marathon, An Exclusive Trail Run

Bison Ultra is a scenic trail ultramarathon organized by KaysFIT Academy, first held on February 9, 2020, in Yercaud, India, designed for trail running enthusiasts seeking challenging and immersive experiences in nature.

6th Edition on 8-Jun-2025, Sunday

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Madurai Ultra Marathon, Combining Endurance With Nature and Cultrue

Madurai Ultra is a trail running event organized by KaysFIT Academy, set to debut on April 8, 2024, at Kadambavanam Resorts in North Madurai, India, offering various distance options for runners of all skill levels.

Second Edition on 7-Dec-2025, Sunday (Tentative)

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Registration will begin on 1-May-2025

KaysFIT Academy: Elevating Endurance through Scientific, Evidence-Based Personalized Coaching

KaysFIT Academy, founded in 2016 by Kannan (Coach Kay) Sundararajan, combines years of experience with scientific, technology, and data-driven personalized training programs. Specializing in high-performance endurance coaching, the academy integrates sports science with holistic development for runners of all levels, from beginners to seasoned ultramarathoners. With the support of caring coaches and the RCF (Reconstruct the Foundation) framework, it enhances athletic performance while fostering mental resilience and personal growth through expert guidance and tailored coaching methodologies.

Achieve a massive Jump in your Personal & Professional Productivity

Adopt AI by KaysFIT Academy, led by Coach Kannan Sundararajan (Coach Kay), focuses on enhancing personal and professional productivity through tailored AI strategies and prompt engineering, empowering individuals and organizations to navigate the complexities of AI effectively.

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