Ten events are on the schedule for the 2011 Pacific Crest Weekend Sports Festival, which will be staged in Sunriver this Friday through Sunday. The weekend’s running and multisport lineup includes events ranging from hourslong endurance races to activities designed for youngsters. Descriptions of each race are listed below.

• Long course triathlon: In a race with distances similar to those in a Half-Ironman triathlon, participants in Pacific Crest’s long course triathlon begin with a 1.2-mile open-water swim at Wickiup Reservoir, followed by a 53-mile point-to-point bike ride on Cascade Lakes Highway and Forest Service roads 45 and 40. The triathlon is completed after a 13.1-mile run on paved paths in Sunriver. This event serves as the TRI NorthWest Long Course Championships.

• Endurance duathlon: Offers the same distances and routes as the long course triathlon, less the swim.

• Marathon: This 26.2-mile footrace on wide, paved pathways in Sunriver is a certified Boston Marathon qualifier.

• Half marathon: This 13.1-mile footrace on wide, paved pathways in Sunriver is the most popular Pacific Crest event. As of Monday, more than 1,200 runners were registered for the race.

• Olympic-distance triathlon: Participants in this three-leg event perform a 1,500-meter open-water swim at Wickiup Reservoir, a 28-mile point-to-point bike ride on Forest Service Road 40, and a 19-kilometer run on paved paths in Sunriver. Of the four multisport events offered at Pacific Crest, the Olympic-distance triathlon draws the biggest field. As of Monday, some 600 triathletes were registered.

• Olympic-distance duathlon: Offers the same distances and routes as the Olympic-distance triathlon, less the swim.

5K run and walk: A mostly flat 3.1-mile footrace on paved paths in Sunriver.

• 10K and 5K:: Mostly flat footraces on paved paths in Sunriver.

• Kids’ Splash Pedal-n-Dash: A timed event for kids ages 12 and younger begins at the Sunriver Community Church and includes a “splash” through three wading pools, followed by a quarter-mile bike and a quarter-mile run. All participants will receive a finisher’s medal and a T-shirt after crossing the finish line. Entry fee is $25.

• Kids’ 1-mile and half-mile dash: Youngsters have two running options from which to choose for this nontimed event, which is staged in the Sunriver Village Mall. Finishers will receive a T-shirt and finisher’s medal. Entry fee is $12. All proceeds from both kids events go to the Three Rivers Cares for Kids Foundation.