It is based at the Ancholme Leisure Centre, Scawby Brook.
Competitors will undertake a 400m pool swim, a 20k cycle ride and a 5k run - the later sections taking in Brigg streets.
The event is being organised by FastFWDSports.
Many competitors - men and women - have signed up to take part, including some from the Brigg area, Scunthorpe, North East Lincolnshire and further afield.
Swimming will be from 8am.
Find out more through this link to the organisers' website...