Kaustubh Radkar

Kaustubh ‘Kau’ Radkar, also known as Kaustubh Radkar, is a former national swimming champion, and worldwide recognised Ironman athlete. Till now, Kaustubh has completed 16 Ironman triathlons, and is among India’s elite athletes. He is considered as a poster boy of Ironman in India. Kaustubh started swimming as early as an age of nine, and went on to win various national and state level championships. He later went on to represent India at several Asia Pacific Swimming Championships, and was also the national swimming champion for seven successive years. Kaustubh made a name for himself by making a telling debut in the 2008 Arizona Ironman triathlon. He completed the event in 11 hours 41 minutes and 36 seconds, which is still the fastest time on debut by an Indian. Till now, he has completed Iron 14 times, across six continents. Kaustubh is the first and the only Indian, who has become an Ironman Certified Coach. He provides coaching to amateur, elite athletes and professional triathletes. Besides training athletes, he also holds motivational talks in schools, colleges and corporate events.

Kaustubh Radkar Major Achievements

  • Only Indian to have completed the Ironman triathlon for a record 16 times.
  • Only Asian in the world to have completed the Ironman triathlon across six continents.
  • Only the fourth athlete to have completed the Ironman across six continents.
  • Fastest Indian at 2016 Comrades Ultramarathon with time of 8:47:45.
  • Longest standing record in 50 meter freestyle swimming (1999) at state and national level.
  • National swimming champion (1995-2001).
  • Represented India at several Asia Pacific Championships.
  • All American Swimmer (2003-2004).
  • Dean’s List Athletic Honours (2002-2004).


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