The Keyo Brigg Bomber 2019 World Quadrathlon Championship - sponsored by a local company - was held on Sunday (May 26).
Ken Harrison, from Brigg Matters magazine, took these pictures.
Organised by Lincsquad and with headquarters at Ancholme Leisure Centre in Scawby Brook, the event involved a 1.5k river swim, a 38k cycle ride, 7k by kayak and a 10k run through Brigg.
Ken reports about 100 competitors - solo and team members.
Watch out for more pictures he took which will appear in Brigg Matters.