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They aimed at a Guinness Book of Records entry as the largest assemblage of folks wearing underpants taking part in a public run; word is they fell 40 short and will have to come back next year.
The Boulder Ironman underpants run, Denver
IronMan Underpants Run in Kona 2023
Underpants Run - IRONMAN Foundation
2015 Kona Underpants Run – Triathlete
Kona memories: Were those guys running in underpants? - Triathlon
IM Kona '16: Day 9
2014 Kona underpants run
E3 Tri Team
Why so serious?: Underpants Run puts the fun in Ironman World
2014 IRONMAN World Championship Recap
IM Kona 2015 - Underpants Run
Kona 2011 - Underpants Run
2014 Kona Underpants Run – Triathlete
Kona Underpants Run 2013 – Triathlete
