The Happy Girls Run is set for May 26 at Riverbend Park in Bend.(The Bulletin file photo)

Two months: Happy Girls Run Bend, which will be held at Riverbend Park in Bend on May 26. The event includes 5K, 10K and half marathon races for women. Registration costs $35 for the 5K, $45 for the 10K and $80 for the half. For more information or to sign up, visit http://happygirlsrun.com/bend-happy-girls.

Three months: The Pacific Crest Endurance Sports Festival, which will include 20 multisport and running races in Sunriver and the surrounding area June 22-24. Entry fees vary widely depending on the event, but registration details are available at http://whyracingevents.com/event/989.

Four months: The Cascade Lakes Swim Series, five open-water swim races ranging in distance from 500 to 5,000 meters held at Elk Lake July 27-29. The 5K race will double at the U.S. Masters Swimming National Open Water Championship. The event is open to swimmers 18 and older. Registration costs $35 for the first race, and each additional race costs $5. To learn more, visit www.comaswim.org/cascade_lakes/about.htm.

Five months: The Beat Beethoven’s 5th 5K, a fundraiser for the Central Oregon Symphony in which racers attempt to finish a 5K before Beethoven’s 5th Symphony concludes (that is about 33 minutes). The race starts on the COCC track in Bend on Aug. 25. Learn more at www.beatbeethoven5k.com.

Six months: The Oregon 12/24, a 12-hour or 24-hour relay (or individual, if that’s your style) mountain bike race that will be held on an 11-mile loop at Wanoga Sno-park on Sep. 29 and 30. Registration costs $40 to $500, depending on the race and division entered, and is available at http://oregonmtb24.com.