LEGENDS OF ULTRA
SPORTS ACHIEVEMENTS
Celebrating the extraordinary athletes of endurance sports.
From grueling 1,000 km cycling epics to monumental 4,000 km challenges, from 42.2 km full marathons to relentless 200 km ultra runs—this is where human limits are tested and redefined.
We showcase the grit, resilience, and unbreakable determination of ultra sports legends, sharing stories that go beyond medals and finish lines.
Our mission is simple: to inspire the next generation of endurance athletes to dream bigger, push harder, and never quit.
Legends
Mike Hall
The pioneer of self-supported ultra-cycling. Winner of the Trans Am Bike Race and founder of the Transcontinental, Hall redefined what is possible on two wheels without support.
Courtney Dauwalter
Widely regarded as the greatest ultra runner in history. Holder of the Triple Crown of 100-milers, Courtney dominates the sport with her unmatched endurance and legendary mental fortitude across the globe's toughest trails.
SIVEEJ K S
SIVEEJ K S is an ultra-endurance athlete from RBI Mysuru, known for combining elite ultra-cycling with long-distance running. His journey is built on discipline, resilience, and a constant drive to test human limits. In running, he progressed from multiple half marathons to two full marathons, completed the demanding Chamundi Hill Duathlon, and finished a grueling 50 km ultra run. A defining moment came in December 2025 at the Tumkur Intentionality 50 km Ultra Run, where he, his spouse Shani Siveej, and son Arjun K Siveej completed the 50 km distance together. This historic achievement earned them recognition in the India Book of Records for ‘Maximum Members of a Family Participating in a 50KM Ultra Run Together,’ symbolizing unity, shared sacrifice, and the power of a family moving as one.
On the bike, Siveej has established himself among serious ultra-cyclists. He completed the legendary 1200 km Paris–Brest–Paris in 87 hours 40minutes, the Thailand ISAN 2024 km ride in 176 hours, and a full 8,848 m Everesting in 33 hours and 50 minutes. His résumé includes major Indian ultra events such as Three States 1200 km, Lambasingi 1200 km, and Coorg 1000 km, and he is a three-time Super Randonneur. These efforts highlight not just physical strength, but exceptional mental toughness and strategic pacing over multi-day efforts. Beyond medals and records, SIVEEJ K S stands out as a role model and motivator. He balances athlete, professional, and family roles while continuing to push boundaries. His story shows that true endurance is measured not only in distances, but in character, consistency, and the inspiration he passes on to future generations.
Kilian Jornet
The king of mountain running. Kilian has broken nearly every significant record in mountain endurance, from UTMB victories to speed records on Everest and Mont Blanc, redefining what is possible on foot.
OUR MISSION
Ultra World Sports exists to document, preserve, and honor verified endurance accomplishments across ultra sports. As an official platform, we record exceptional performances that define excellence and set new benchmarks—across ultra-cycling, full marathons, and ultra-distance runs. Every achievement is archived with accuracy, integrity, and respect for the athlete’s effort, combining curated storytelling with technical data analysis to capture both the performance and the perseverance behind it. Rooted in the spirit of relentless determination, we celebrate the legends of endurance sport while bridging the gap between raw grit and professional performance—creating a lasting legacy that inspires future generations to push beyond limits, on two wheels and on foot.
CHALLENGE THE LIMITS OF HUMAN ENDURANCE
CHASE THE HORIZON
LEGENDARY ENDURANCE EVENTS
Join the elite ranks of ultra-cycling. Register for our upcoming world-class challenges and test your limits against the legends of sports history.
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