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
Oct. 5-8
Xstream Expedition Adventure Race; 250 to 300 miles; reaches elevations of 12,000 feet; in Canyon County near Moab; supported; $395. gravityplay.com
CLIMBING
Today; Oct. 17, 27, 31
Climbing classes; for first-time or novice climbers with an introduction to basic sport climbing procedures, terminology, technique and equipment; at Denver REI store. rei.com
Wednesday
Climbing (and Surviving) the High Tibetan Himalayas; led by Valerie Hovland with stories, slides and video; by the Colorado Mountain Club; at Denver REI Store; 7 p.m. cmc.org
Saturday
Mountain Fest; at American Mountaineering Center in Golden; includes free indoor rock climbing, clinics, a Taste of the Mountains dinner and presentations from nature writing, to mountaineering expeditions to ultralight packing; 1 p.m. cmc.org
Oct. 28-29
Basic tree climbing certification; learn the safe way to climb solo, including tree selection, rope handling, knots and more; ages 13 to adult; at South Platte Park; $345-$450; 9 a.m. to 5:30 p.m. sspr.org or 303-347-5999
CYCLING
Mountain and road
Friday-Sunday
Fruita Mountain Biking with The Women’s Wilderness Institute; in Fruita; $435, includes food and equipment. womenswilderness.org or 303-938-9191
Saturday
Durango Fall Blaze; bike tour with 34-, 57- or 100-mile option course; fully supported ride; $55 to $65; with Fort Lewis College; in Durango. durangofallblaze.com
Third annual Buffalo Creek Trail Day and MTB Festival – Trail Building and Maintenance; at Buffalo Creek Recreation Area Meadows Campground, in Buffalo Creek; 8 a.m. comba.org
Sunday
Renaissance Bike Rally; 15-mile ride or hike; in Castle Rock; $10 to $20; 8 a.m. 303-660-5518
Oct. 11
Octobercross 5K; at Chatfield State Park in Littleton; cross country race on grass, dirt trails and bike path with a moderate hill; 6 p.m. eclecticedgeracing.com
Oct. 27-31
Canyonlands Mountain Bike Expedition with The Women’s Wilderness Institute; at Canyonlands National Park, Utah; $675, includes food and camping equipment. womenswilderness.org or 303-938-9191
HIKING/BACKPACKING
Oct. 5-8
Slickrock Canyons Intro Backpack with The Women’s Wilderness Institute; at Utah Desert Canyons; $490, includes food and equipment. womenswilderness.org or 303-938-9191
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
Thursday
Cross Criterium 5K; cross country race on a 1K course; run in criterium style; 6 p.m. eclecticedgeracing.com
Saturday
Whole Foods Whole Fun Ride and Run; teams of two share one bike, running and biking, picking up as many stuffed animals as possible along the way; $60 per team; at the Boulder Reservoir in Boulder; 9 a.m. 5430sports.com or 303-442-0041
Walk for Farm Animals; at southeast corner of Civic Center Park in Denver; fundraiser for Farm Sanctuary; $10; 4 p.m. walkforfarmanimals.com
Evergreen 5K Cougar Stride; run/walk; at Evergreen High School; fast downhill course with rolling hills on paved and dirt roads, to rocky trails through open space; $25; 9 a.m. cougarstride.com
Second annual 5K Football Walk for Liver Wellness; at Sloan’s Lake Park in Denver; 9 a.m. footballwalk.org
Running of the Bulls; in Estes Park; a 3.75-mile race; makes a complete lap around Lake Estes; at 7,600 feet in elevation; solo or team; $15 to $20; 9:30 a.m. partnersmentoringyouth.org
Sunday
Fans on the Field, Denver Stadium Run/Walk; 5K and 10K; through downtown Denver, then a lap around Mile High Stadium, across the ice at the Pepsi Center and around the warning track at Coors Field; 9 a.m. fansonthefield.com
U.S. Marine Corps Memorial 5K Run/Walk; also a 1K fun run; at the Jefferson County Courthouse in Golden; $20; 9 a.m. colorado1womenmarines.org
Red Rock Scramble; a 5-mile run and a 3-mile walk; on trails and rural roads following the St. Vrain River; at Lyons High School, in Lyons; $20 to $25; 10 a.m. coloradoindianbar.org
Third annual Run With the Wolves 5K/1K; at West Woods Elementary in Arvada; $15 to $20; 9 a.m. jeffcoweb.jeffco.k12.co.us/elem/westwoods
Oct. 7
Glenwood Canyon Shuffle Race for Literacy, half-marathon and 5K through Glenwood Canyon, in Glenwood Springs, $25 and $15, 9 a.m. glenwoodraces.com or 970-876-0678
Oct. 8
Matchett Park Cross Country 5K; and 1K for kids; in Grand Junction; 8:45 a.m. 970-254-3866
Oct. 14
Band on the Run 2-mile run/walk; at Shenandoah Community Clubhouse; benefits the Smoky Hill High School marching band; $10 to $15; 9 a.m. 303-877-4211
Oct. 15
Run to Whitewater; 18-mile point-to- point singletrack self-supported trail/wilderness experience; Bang’s Canyon to Colorado 141 near Whitewater; 8 a.m. 970-241-9497
The Denver Marathon; also a half-marathon or four-person marathon relay; $85 to $105. denvermarathon.com
Nov. 11
Breckenridge Ale House Rim Rock Run; 22.5 miles (37K); 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
Through Nov. 4
Ric Rojas Running Middle School Cross Country; individualized program to develop endurance, speed and strength, with competitive opportunities at fall road races and cross country meets, including the State Junior Olympics; Tuesdays and Thursdays; $245. ricrojasrunning.com
Saturday-Oct. 15
Team Run 5280 weekly training runs through Oct. 15; all abilities; $225; with Maureen Roben, a Colorado women’s record-holder for the half marathon; Saturdays at 7 a.m. denvermarathon.com or RUN5280@denvermarathon.com
SAILING
Wednesday
Special Needs Kids Sailing Day; at Standley Lake, in Arvada/Westminster; volunteers needed; led by Community Sailing, the Boy Scouts and public schools; ages 9 to 17; 8 a.m.-2 p.m. 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
Salomon Six; 6-mile race kicks off Salomon 24 Hours of Frisco Weekend; 8:30 a.m., Frisco. 303-635-2815 or emgcolorado.com
Saturday-Sunday
Third annual 24 Hours of Frisco; 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; Salomon Six 6-mile race Sept. 30 kicks off the weekend, 8:30 a.m.; Nordic Center, in Frisco. 303-635-2815 or emgcolorado.com
Oct. 28
Matchett Park Cross Country 5K (1K for kids); at Matchett Park in Grand Junction; course on farm roads and desert arroyo trails; 8:45 a.m.; call first, date subject to change. 970-241-3866
TRIATHLON/DUATHLON
Saturday
Black Canyon Sprint Triathlon; at the MRD Aquatic Center, in Montrose; eighth grade and under: swim 250 meters, bike 10K and run 2.5K; ninth grade and over: swim 500 meters, bike 25K, run 5K; solo and teams; 8 a.m. a-tech-services.com/bctri
Sept. 30
Whole Foods Whole Fun Ride and Run; teams of two share one bike, running and biking, picking up as many stuffed animals as possible along the way; $60 per team; at the Boulder Reservoir in Boulder; 9 a.m. 5430sports.com or 303-442-0041
LECTURES/CLASSES
Sunday
Learn GPS Family Camp; teach the basics of GPS usage; ages 7 and older; $60 per family includes rental of GPS receiver and three hours of instruction/exercises by GPS Discovery Adventures; 1-4 p.m.; other class dates Oct. 8, 14 and 28. gpsdiscoveryadventures.com or 303-619-5252
MISCELLANEOUS
Saturday
South Platte River Sweep; at Fishback Landing Park in Denver; a free luncheon follows the event at Fishback Landing Park on Water Street; part of National Public Lands Day; 8 a.m. to noon. greenwayfoundation.org
