To get an event listed in the calendar, send your information 14-21 days in advance to: OEcalendar@denverpost.com or fax 303-866-9004. Be sure to include a contact number. Items will run on a per-space basis.
ADVENTURE RACING
July 22-23
Breckenridge sprint, 12- and 24-hour AdventureXstream, in Breckenridge; mountain bike, kayak, trek, orienteering/navigation; solo, two-person, four-person, coed or single; $75 sprint, $175 12-hour, $250 24-hour; a regional qualifier for the USARA National Championships. gravityplay.com
CLIMBING
Saturday
Dances with Branches – Intro to Recreational Tree Climbing; at Evergreen Parks & Recreation; certified instructor shows the ropes to climbing up a tall tree; for adults and children ages 7 and older; all equipment provided; class size limited. 303-674-6441 or treeclimbingco.com
Intro to Rock Climbing with The Women’s Wilderness Institute; in Boulder; $90 includes climbing gear and lunch. womenswilderness.org or 303-938-9191
July 22-23
Intro to Rock Climbing Weekend with The Women’s Wilderness Institute; in Boulder; $175 and includes all climbing gear and lunches. womenswilderness.org or 303-938-9191
July 29-30
Lead Climbing Weekend with The Women’s Wilderness Institute; in Boulder; $175 includes all climbing gear and lunches. womenswilderness.org or 303-938-9191
Babes Rock! clinics; in Summit County; for beginner and intermediate climbers; $350. babesinthebackcountry.com
CYCLING
Mountain and road
Saturday
2006 Breckenridge 100; at Carter Park, Breckenridge; $185; a NORBA-sanctioned event; 6 a.m. warriorscycling.com/home/home.php
Crested Butte Classic 100; at Brick Oven Deck, Crested Butte; free; 7 a.m. 970-349-6882 or active.com
Saturday
Sunshine Canyon Hill Climb; in Boulder; climbs 8 miles; $75 to $115; ages 18 and younger free; 7:30 a.m. tylerhamiltonfoundation.org
Sunday
Mike Horgan Hillclimb Bike Race and Ride; starts at Sixth Street and Canyon Boulevard, in Boulder, then races up Sugarloaf Road; $25; 18 miles; 8 a.m. boulderracing.com
July 21-24
Courage Classic; 157 miles through mountain byways and backcountry; also a century option for an extra 100 miles; also a one-day ride for cyclists of all ages; through Leadville, Vail and Summit County; $60 to $105. couragetours.com
July 22, Aug. 12, Sept. 16
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
July 23
Fifth annual Colorado-Eagle River Ride; 100-mile, 100K and 42-mile courses; along the Colorado River Road in Eagle County; fully supported with aid stations and SAG vehicles; $95 to $115. vailvelo.com
Intro to mountain biking: basic techniques class; practice braking, pedaling, turning, hopping; other topics include trail etiquette, bike jargon and maintenance; helmet required; $39 to $44; 2-4 p.m., Colorado Free University. freeu.com or 303-399-0093
July 30
24th Wray Elks citizen bike road races; in Wray; 14- and 34-mile races; 7:30 a.m. 970-332-5080 or kudokiddo@hotmail.com
Aug. 13
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. 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
HIKING/BACKPACKING
Monday-July 22
Keystone Mountain Adventures series; introductory backpacking program for teens ages 14-17; learn about low-impact camping, orienteering, high-alpine environment and cultural history of Summit County. Includes a day rafting the Arkansas River through Brown’s Canyon; $700. keystone.org or 800-215-5585
Friday-Sunday
Intro to Backpacking with The Women’s Wilderness Institute; at Snowy Range, Wyo.; $375 includes food and equipment; for women with previous hiking experience and a moderate level of fitness. womenswilderness.org or 303-938-9191
July 21-23
Mother/Daughter Backpack with The Women’s Wilderness Institute; in Snowy Range, Wyo.; $375, includes all food and equipment; mothers of all ages and daughters 13 and older. womenswilderness.org or 303-938-9191
July 25-29
Rocky Mountain Backpack with The Women’s Wilderness Institute; at Rocky Mountain National Park; $580 includes all food and equipment; for women with previous backpacking experience. womenswilderness.org or 303-938-9191
July 30
24-hour Sierra Club hike; up Pawnee Pass, south along the Continental Divide; over unnamed peak, then east to Shoshoni Peak; 10-mile route, 2,600 feet of elevation gain; 7 a.m. to 3 p.m. bill.campbell@rmc.sierraclub.org or 720-837-0074
Ongoing
Trail access, nordic walking, guided hikes and bird and nature walks; at the Adventure Center, in Broad Axe Barn, at Devil’s Thumb Ranch in Tabernash; 4,000 acres of wilderness and trails; $5 to $15; schedule varies. devilsthumbranch.com
Guided backpacking trips from Altitude Adventures; overnight and three-day trips; $200. 303-499-1100 or altitudeadventures.com
RUNNING
Saturday
Aspen Race for the Cure; a 5K run/walk to benefit the Susan G. Komen Foundation; in Aspen. 970-920-0250 or komenaspen@sopris.net
24th Grand Lake Buffalo 5K Run/Walk; at Grand Lake Town Park, in Grand Lake; 8:30 a.m. 970-627-8328
15th Run for Hope; 5K run and 3K fun run/walk; at Memorial Park/Prospect Lake, in Colorado Springs; starts next to the Velodrome, makes one lap around criterium course, then laps around Prospect Lake; $15 to $20; 7 a.m. pprrun.org or patlockhart@worldnet.att.net
Monument Downhill 5K; downhill course from Colorado National Monument to Grand Junction. 970-260-4612 or 970-243-3721.
Sunday
Rocky Mountain Road Runners: Marathon Training Series Race No. 1; 10 miles; $10 to $20; at Big Dry Creek Trail, in Westminster; 7 a.m. rmrr.org
Donor Dash 2006 5K Run/Walk; and 1K walk; at Washington Park, in Denver; 8 a.m. donoralliance.org
Aug. 20
2006 Pikes Peak Marathon; 26.21 miles; at Pike National Forest, in Manitou Springs; various cutoff times; 7 a.m. pikespeakmarathon.org
Oct. 15
The Denver Marathon; also a half marathon or four-person marathon relay; $85 to $105. denvermarathon.com
Nov. 11
Mesa State 37K Rimrock Run; gate-to-gate through Colorado National Monument; starts at the park’s east entrance, in Grand Junction; 8 a.m.; limited to 400 entries. rimrockrun.org or 970-243-4055
SAILING
Ongoing
Community Sailing of Colorado sailing programs; for children ages 8-17 and adults 18-95; introductory learn to sail, advanced sailing, voyaging and racing; at Cherry Creek State Park or Standley Lake Regional Park; certified sailing instructors. communitysailing.org or 303-757-7718
SKYDIVING
Ongoing
Mile-Hi Skydiving Center; full jumping operations; weekdays 9 a.m. to sunset, weekends 8 a.m. to sunset. 303-702-9911 or mile-hi-skydiving.com
TRAIL RUNNING
Saturday
Howelsen Hill 8 Miler; at Howelsen Hill, in Steamboat Springs; a challenging trail run on singletrack; $20; 9 a.m. runningseries.com
Sunday
Barr Trail Mountain Race; in Manitou Springs; $15 to $30; 7 a.m. runpikespeak.com
July 23
Crag Crest Trail 10 1/2-mile run; at Island Lake Trailhead on Grand Mesa (about 15 miles north of Cedaredge); $3. 970-241-6478 or mmstriders.org
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
SWIMMING
Aug. 12
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
TRIATHLON/DUATHLON
Saturday
Lory Trail Duathlon, Relay and 5K; 4.2-mile run, 8- to 10-mile bike; duathlon $45; 5K $25; duathlon relay $45; at Lory State Park, in Fort Collins. runnersroostftcollins.com
Table Mountain Triathlon for kids, juniors and U-23s; at Duncan YMCA, in Arvada; $25 to $35; lengths vary by age. tablemountaintriathlon.com
Sunday
Danskin Women’s Triathlon Series-Denver; at Aurora Reservoir, in Aurora; 3/4-kilometer swim sprint, 20K bike and 5K run; $75; 7 a.m. danskin.com
Table Mountain Triathlon; 500-yard pool swim, 20K bike, 5K run; start at Duncan YMCA in Arvada; $57.50 to $60; tablemountaintriathlon.com
Ongoing
Surf & Turf Aquathon 2006; six-race series; series championship Sept. 6; at Chatfield State Park, Gravel Pond, in Littleton; individual race, $27; five-race series, $125 to $165; short course: 500-meter swim, 5K trail run; long course: 1,500-meter swim, 5K trail run. aquathonusa.com
2006 Dip & Dash Series; July 18 and 25, and Aug. 1; at Aurora and Cherry Creek reservoirs; 6 p.m. starts; $30 to
