ADVENTURE RACING
Sept. 23
Seventh annual Salomon Summit Adventure; a one-day adventure race; solo (male, female), two-person (male, female or coed), or three-person coed or three-person coed relay; in Frisco. 303-635-2815 or emgcolorado.com
CLIMBING
Sunday; Aug. 20; Aug. 27
Divas rock out: women-specific class for beginners; in Boulder area; covers basics of climbing; 8 a.m. to 3 p.m.; $149. outdoordivas.com
CYCLING
Mountain and road
Saturday
Babes on Bikes; in Breckenridge (Sept. 16 clinic on Front Range) women-specific clinics include skills practice, trails education, bike fit and maintenance tips for all levels of riders; $120. babesinthebackcountry.com
Birthday Bash ride; at Eben G. Fine Park, Third Street and Arapahoe Avenue in Boulder; marks the 30th anniversary of the Bikecentennial ride of 1976, in which 4,100 cyclists rode across America on the 4,248-mile
TransAmerica Trail, which starts in Yorktown, Va., and ends in Astoria, Ore.; includes free afternoon ride at 1:30 p.m., barbecue and lectures; 5:30-8:30 p.m. 970-221-4838 or rob@comfybikes.com
Second Kent Eriksen’s Tour de Steamboat; noncompetitive century road bike ride starts and finishes in Steamboat Springs, crossing Rabbit Ears Pass, Gore Pass and Yellow Jacket Pass. rockypeakproductions.com
Colorado Cycling Festival’s Rist Canyon Road Ride; 50 miles up Rist Canyon, climbing more than 8,000 feet; at Hughes Stadium in Fort Collins; $65; 8 a.m. coloradocyclingfestival.com.
Aspen Summer Race Series, Summer Uphill; at base of Ajax on Summer Road, in Aspen; 4.8-mile, 3,400-feet vertical climb; $10; 8:15 a.m. 970-920-6885 or clkeleher@hotmail.com
Intro to CX; coed cyclocross clinic; half-day of training techniques and on-bike skills practice; at Village School and Powers Park, in Littleton; $30; helmets required; 8:30 a.m. jdssportcoaching.com
Sunday
14th Ride for Sight; 100-mile bike tour; also 10-, 20- and 50-mile routes; $15 to $35; 6:30 a.m. rideforsightwy.org
Aug. 18-20
BetterRide Mountain Bike Camp; by UCI World Masters Championships silver medalist and USA Cycling expert coach Gene Hamilton; in Summit County; $399. betterride.net
Aug. 19
Ultra 100; in Beaver Creek; 20-mile mountain bike race; loop, stadium base and finish area; 100-mile and 100K team and solo divisions. mtbrace.com
Off-road handcycles clinic; in Crested Butte; hosted by the Adaptive Sports Center of Crested Butte will be hosting a clinic for off-road handcycles. 970-349-5733
Aug. 19-20
24 Hours in the Sage; 24-hour race, lap format on desert singletrack; in Gunnison; $115. 24hoursinthesage.com
Aug. 25
Women’s Mountain Bike Workshop with Mia Stockdale; in Boulder; former pro rider teaches new skills, all levels welcome; 5:30-7:30 p.m.; $20. 303-449-3482 or outdoordivas.com.
HIKING/BACKPACKING
Friday
Voldsmarch Wheeler Geological Overnight Hike; at Hanson’s Mill, in Creede; 24K overnight camp and hike into Wheeler Park; 8 a.m. 719-658-1123
Sunday
Classic Sierra Club hike to the summit of Mount Audubon; 13,223 feet; 8-mile route; 2,700-foot elevation gain; bring 10 essentials; free. 720-837-0074 or bill.campbell@rmc.sierraclub.org
KAYAKING
Friday-Saturday
River Divas: clinic consists of one session on a lake, then a river session; in Boulder area; covers river features, bracing and river running skills; 4:30-7:30 p.m.; $169. outdoordivas.com
Monday; Aug. 14
Rolling Divas: Flat-water roll class; in Boulder area; learn tips and techniques for improving rolling skills; 4:30-7:30 p.m.; $59. outdoordivas.com
RUNNING
Thursday
Eldorado Springs Cure 4-mile run; in Eldorado Springs; $13-$20; 7 p.m. co-cancer-foundation.org
Mountain Avenue Mile; in Fort Collins; $10; 6:30 p.m. 970-493-2379
Friday-Saturday
Wild West Relay; 36 legs, 195 miles; course starts in Fort Collins and finishes in Steamboat Springs, winding through sections of northern Colorado and Wyoming and crossing over Sand Creek Pass (10,269 feet) and Rabbit Ears Pass (9,426 feet); run under full moon. wildwestrelay.com
Saturday
Run For Hope 5K; at City Park in Fort Collins; $12 kids, $20 adults; 8 a.m. runforhope.net
25th Rat Race; in Ault; 10K and 5K runs and a 5K walk; on a certified country course; $20 to $25; 7:30 a.m. 970-834-1326
Georgetown to Idaho Springs Half Marathon; in Georgetown; $25 to $30; 8 a.m. bkbltd.com
Sunday
Teva Berry Picker 5K/10K; at the base of Lionshead Gondola, in Vail; $25; 9 a.m. vailrec.com
Reece’s Roundup; 5K run or 1-mile walk/run; at Butterfield Park, in Castle Rock; $18 to $25; 8 a.m. rubinofamily.net
Aug. 17
Pearl St. Mile and Kids’ 800; at Pearl Street Mall, 14th and Pearl in Boulder; 800-meter race for children age 8 and under; $15 to $20; 6 p.m. boulderraceseries.com
Aug. 18
24th Valley 5000; 5K race; at Loveland Public Library, in Loveland; $18 to $20; 7 p.m. lovelandfyi.com/valley5000/valley5000.html
Aug. 19
Palisade Peach Festival 5-mile; in Palisade; 8 a.m. 970-434-3376
Aug. 20
2006 Pikes Peak Marathon; 26.21 miles; at Pike National Forest, in Manitou Springs; various cutoff times; 7 a.m. pikespeakmarathon.org
SKATEBOARDING
Aug. 17-20
Seismic U.S. Nationals of Slalom Skateboarding; in Longmont and Windsor; four disciplines: slalom, giant slalom, tight slalom and skatepark slalom; divisions include kids, juniors, amateurs and pro; 6 p.m.; $25 to $125. 303-440-9449 or
usnationals.coloradoslalom.org
SWIMMING
Saturday
10K open-water race; benefits Wingshadow, a nonprofit organization that serves endangered youth in northern Colorado; at Horsetooth Reservoir, west of Fort Collins. whswim.com or 970-419-3252
TRAIL RUNNING
Saturday
Desert Championships 10K and 15K trail/desert runs; 1 1/2 miles northwest of Grand Junction airport; $2 to $3; 7 a.m. mmstriders.org or 970-241-6478
Aspen Summer Race Series, Summer Uphill; at base of Ajax on Summer Road, in Aspen; 4.8-mile, 3,400-feet vertical climb; $10; 8:15 a.m. 970-920-6885 or clkeleher@hotmail.com
Aug. 15
Twilight Trail Series No. 4; 5.75-mile race at South Valley Open Space Park, Littleton (Ken Caryl Valley); 6:30 p.m.; $10 to $20. runuphillracing.com
Aug. 19
Hamlin Scramble 9-mile; trail race on a loop course starting and finishing at the Hamlin Gulch Road intersection with Fall River Road outside of Idaho Springs; $25 to $29; 8 a.m. eclecticedgeracing.com
Sept. 30
Salomon Six; 6-mile race kicks off Salomon 24 Hours of Frisco Weekend; 8:30 a.m., Frisco. 303-635-2815 or emgcolorado.com
Sept. 30-Oct. 1
Third annual 24 Hours of Frisco; trail runners race on the peninsula along the shores of Lake Dillon; solo, two- to four-person team or six- to eight-person team; a 6-mile loop on the trails of the Frisco Nordic Center, in Frisco. 303-635-2815 or emgcolorado.com
TRIATHLON/DUATHLON
Saturday
Highlands Ranch Splash-Mash-Dash Sprint Triathlon; at Recreation Center at Northridge, in Highlands Ranch; 800-yard indoor/outdoor swim, 12-mile bike, 5K cross country run; $55-60; 8:30 a.m. highlandsranchrunseries.com
Saturday-Sunday
10th Boulder Kids Triathlon; at Boulder Reservoir; noncompetitive event for children 3-15; field limited to 300 participants, split into six age-group waves of two-year increments; distances are age appropriate; 7 a.m.; $35. 5430sports.com
Sunday
Fall Frenzy Kids Triathlon; at Parker Recreation Center, in Parker; ages 6-8: 25-yard swim, 2-mile bike, 1/2-mile run; ages 9-11: 50-yard swim, 4-mile bike, 1-mile run; ages 12-14: 200-yard swim, 8-mile bike, 2-mile run; $45. fallfrenzy.com
5430 Long Course Triathlon; 1.2-mile swim, 56-mile bike, 13.1-mile run; at Boulder Reservoir, in Boulder; solo and team; $190-$210; 5 a.m. 5430sports.com
Aug. 19
Aspen High Country Triathlon/Duathlon; at Aspen Recreation Center, in Aspen; $50; 7 a.m. aspenrecreation.com
Aug. 19-20
RattleSnake Triathlon; also the DU club championship and relay team triathlon; Aug. 19: sprint (500-meter swim, 12-mile bike, 5K run; Aug. 20: Olympic- style (1,500-meter swim, 40K bike, 10K run; at Aurora Reservoir, in Aurora; solo or team; $99 to $169. rattlesnaketri.com
Sept. 6
Surf & Turf Aquathon 2006; finale of six-race series; at Chatfield State Park, Gravel Pond, in Littleton; $27; short course: 500-meter swim, 5K trail run; long course: 1,500-meter swim, 5K trail run. aquathonusa.com
LECTURES/CLASSES
Aug. 29
Women’s Backcountry Medicine; in Boulder; learn how to recognize, treat and prevent everything from matters of inconvenience to true backcountry emergencies; free, 7 p.m. 303-449-3482 or outdoordivas.com
MISCELLANEOUS
Sept. 5-Oct. 9; Oct. 9-Nov. 10
Outdoor Fitness Boot Camp; programs in Boulder, Broomfield and Superior; five weeks (16 Monday/Wednesday/Friday classes), hours vary for programs; challenging and wacky exercise-driven class series combining fun, teamwork and friendly competition; for all fitness levels; $175 to $245. fitliv.com
