Triathlon World Records

Joe Salter completed a triathlon while juggling in one hour, 57 minutes. See Rules for full information.

Alex Cunningham completed a triathlon. The whole course measures 22 feet in distance.

Jack Nunn, a former US national team rower who won silver in the eight at the 2001 Under-23 World Rowing Championships in Linz, Austria, finished three of triathlon's most punishing races in a little over two years. He completed the Norseman Xtreme Triathlon in Norway in 15:02:45 in August 2017, the three-day, 320-mile Ultraman Florida in 33:24:36 in February 2019, and the Ironman World Championship in Kona, Hawaii in 15:05:51 in October 2019. RecordSetter checked each finish against the official published race results, for a combined 63 hours, 33 minutes and 12 seconds. Not bad for a 6-foot-3, 220-pound athlete built for a rowing shell rather than a mountain climb.