Summerland will be represented by eight triathletes in the 2012 Subaru Ironman Canada on Sunday.
Three have taken part in the event in the past.
They are Patrick Amundsen, 58; Andrew Burden, 34; and Sophie Chadwick, 24.
Also entered this year are Jillian Abney, 20; France Burke, 46; Derek Carnell, 55; Neil Crofts, 50; and Lauren Currie, 28.
The race, which starts and ends at the Okanagan Lakeshore in Penticton, consists of a 3.8-kilometre (2.4-mile) swim, a 180-kilometre (112-mile) bike ride through Osoyoos and Keremeos and a 42-kilometre (26.2-mile) run on the east side of Skaha Lake.
The 30th annual race has drawn 2,800 competitors from more than 25 countries and 44 U.S. states.
They will have 17 hours to complete the course and earn the title of Ironman.
The race begins at 7 a.m. west of the Lakeside Resort when the swimmers enter the water in a mass start.
As they leave the water, they get on their bikes and pedal south along Lakeside Road and Highway 97, turning west at Osoyoos for the climb up Richter Pass.
They return by way of another pass at Yellow Lake on Highway 3A.
From the Okanagan Lake transition area they set out again on foot to complete a full marathon to Okanagan Falls and back.
The course closes at midnight.
Summerland residents are among the 4,000 volunteers who help put on the race.
Volunteers and other spectators can watch for the Summerland triathletes and cheer them on.
Here are their numbers: Abney, 2065; Amundsen, 1906; Burden 458; Burke 2765; Carnell, 1905; Chadwick, 2066; Crofts, 1742 and Currie, 2132.