ADVENTURE RACING
Saturday
Denver Oyster urban adventure race; at REI flagship store, 1416 Platte St.; disciplines include inline skating, urban trekking, rafting/creeking, running, biking and navigation; three-person teams; length four to eight hours (30-40 miles); 8 a.m.
Sept. 8
Vail Adventure Xstream Adventure Race; in Vail; sprint or 12-hour races; mountain bike, kayak, trek and navigate; $85 to $175.
or 970-259-7771
CYCLING
Mountain and road
Friday-Sunday
Rocky Mountain G3 Gravity Series, race No. 2; at Sol Vista Basin, Granby; $70 to $90; super-D and DH disciplines; races at noon. 970-333-1159
Saturday
Dillon Bike Criterium; in Dillon; Course is .58 mile, classic, smooth, technical criterium course through the center of Dillon; 8 a.m.; $25. 866-503-3400,
15th annual Kaiser Permanente Moonlight Classic; at the state capitol building, Colfax and Lincoln; pedal through the streets of downtown Denver and surrounding suburbs; $20 to $35; 8:30 p.m. moonlight-classic.com
Stonewall Century Ride; 102-mile road bike course that begins and ends in La Veta Town Park in La Veta; 25-mile and 50-mile options also available; $55; 6:30 a.m.
Saturday-Sunday
Fifth annual 24 Hours in the Sage; at Gunnison’s Hartman Rocks Multi-Use Recreation Area; a full-day relay; solo, duo teams and four- and five-person teams; men, women and coed; ride a 13-mile loop continuously from noon to noon; most laps wins; loop includes 14 trails, mostly singletrack with an 1,100-foot gain.
or 303-507-1148
Saturday-Monday
Mountain Bike Skills Camp with USA Cycling coach Gene Hamilton; in Morrison/Conifer area; 10 a.m. Saturday to 4 p.m. Monday; $399.
Sunday
Intro to CX co-ed cyclocross clinic; in Littleton; half-day of training techniques and on-bike skills practice; space limited, pre-registration required; must be 18 years or older and hold a valid ACA license; $30; 8:30 a.m.
HIKING/BACKPACKING
Monday
L2S hiking and backpacking training; one gym/classroom session and one hike weekly to improve endurance and prevent injury; learn the basics of packing, nutrition and safety; eight-week program: $360, or $15 per class, $30 per hike. L2S-livehealthy.com or 720-352-3638
Sept. 11
Wilderness Trekking School; beginning mountaineering and hiking course, includes five weekly lectures and five weekend field days; $80; 6:30 p.m., American Mountaineering Center, Golden.
, or 303-279-3080
Oct. 4-7
Introduction to Backpacking (canyons); near Grand Junction; the Women’s Wilderness Institute offers a course covering backpacking basics during a trip to Utah’s slickrock canyons; $495. 303-938-9191 or
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KAYAKING/RAFTING
Sept. 1-3
Colorado River Canoe Trip; from Grand Junction to Westwater, Utah; with Bernie Kendall and Mike Willis from the White Water Canoe Co.; through Ruby and Horsethief canyons; no experience necessary; gear provided. 970-350-9400
Sept. 5-9
Writing from the river’s edge tour; starts and ends in Grand Junction; canoeing retreat with novelist and poet Page Lambert; appropriate for writers and canoeists of all levels; course travels into Labyrinth Canyon of Utah’s Green River; $850. .
RUNNING
Friday
Valley 5000; at Loveland Public Library, Fourth and Adams streets, Loveland; $20; 7 p.m. .
Saturday
Peach Fest 5-Miler; run/walk begins at Taylor Elementary in Palisade and heads toward the Colorado River; $20; registration at 7 a.m., race begins at 8 a.m.
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Second annual Heart and Lung 5000; in Littleton; 5K race with a combination of flat pavement and dirt paths; 8 a.m.
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Sunday
Alferd Packer Cannibal Run 5K; at the Riverfront Event Center in Littleton; $25 to $35; 7 a.m.
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Fans on the Field; 10K walk/run and 5K fun run; at Invesco Field at Mile High, the Pepsi Center and Coors Field; $15 to $30; 8:30 a.m.
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Aug. 26
11th annual Race For Research 5K; at Washington Park; 8 a.m.; $15 to $20.bkbltd.com
Sept. 21-22
10th annual Colorado Relay from Idaho Springs to Glenwood Springs; teams compete to race 170 miles in 24 hours; $720 to $1,050 plus $200 donation to benefit charity; registration limited to 150 teams; start times between 5 a.m. and 10 a.m. .
Nov. 10
Mesa State 37K RimRock Run; gate to gate through the Colorado National Monument, outside Grand Junction; 8 a.m. . or 970-243-4055
Ongoing
Vail Athletic Club Running Group; Tuesdays through the summer; 6 p.m.; all levels of runners from beginners to competitive; free outdoor runs. 970-476-7960
TRAIL RUNNING
Aug. 25
VRD Teva Vail Mountain Trail Run B.C. Vertical Ascent; by the Vail Recreation District. .
Sept. 8
Road Kill Half Marathon and 5-miler; starts at the Kremmling Town Square; run up cliffs, near Muddy Creek, on singletrack and doubletrack trails near Kremmling; 9 a.m. . or 1-877-573-7926
TRIATHLON/DUATHLON
Wednesday
Dunk-n-Dash; at Nottingham Lake, Avon; 800- or 1,600-yard swim followed by a 5K run; $15 to $20; 6 p.m. 970-748-4060
Sept. 1-2
Newton 24 & 8 Hours of Triathlon and Duathlon; at Cherry Creek State Park; solo and teams; repeated laps over short-course triathlon (K-mile swim, 11-mile bike, 3-mile run), or duathlon (11-mile bike, 3-mile run) for eight or 24 hours; entry fees start at $100. .
SKATEBOARDING
Saturday
Grand Prix Skateboard Competition; beginner, intermediate and advanced divisions, with prizes for top three finishers; Cornerstone Park, 5150 S. Windemere St.; registration begins at 9 a.m. 303-798-7515
WINTER SPORTS
Saturday-Sunday
2007 Winter Biathlon Clinic; at Snow Mountain Ranch/YMCA of the Rockies Nordic Center in Winter Park; learn how to prepare and participate in the winter biathlon; proof of previous USBA Safety Certification (Red Book) is required; noon Saturday to noon Sunday; $60 to $80.
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MISCELLANEOUS
Aug. 23-26
Wilderness recovery retreat for survivors of trauma; at Blue Moon Ranch in northwest Colorado; for women who are actively working on recovery from sexual assault, sexual abuse or domestic violence; course includes rock climbing, short hikes, low ropes, expressive arts and journaling; need-based financial aid available; $490.
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Aug. 26
Third Annual Tennis Marathon For Breast Cancer; at Millennium Harvest House in Boulder; from 8 a.m. to 5 p.m. with one-hour shifts, followed by a celebrity match, dinner and silent auction; $450 per team, up to 18 members. 720-322-5966 or
Sept. 6-9
Retreat for cancer survivors; course includes rock climbing, short hikes, low ropes, expressive arts and journaling; for all ability levels; need-based financial aid available; $490.
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Calendar submissions
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 (attn: Outdoor Extremes). Please include a contact number. Items will run on a space-available basis.
