Friday, May 22
Iron Horse Bicycle Classic — Watch or compete as bikers race the train to Silverton. 7 a.m. Durango to Silverton, www.ironhorsebicycleclassic.com. Through May 25.
Saturday, May 23
Gunnison Growler Weekend — 64- or 32-mile mountain bike rides punctuate a weekend of events. Hartman Rocks Recreation Area, Gunnison, www. gunnisontrails.com. Through May 24.
Monday, May 25
Bolder Boulder 10K — America’s favorite 10K race creates a full day of fun for all, from walkers to elite athletes. Races finish at CU’s Folsom Field. Pro Wheelchair wave kicks off at 6:55 a.m. with elite men’s race expected to finish at the stadium around 11:30 a.m. For information go to www.bolderboulder.com.
Valor Marathon — Watch or participate in the Valor Marathon, marathon relay, half marathon, 5-mile run/ walk, or 1 mile family run. Race starts 8 a.m. Vail Village, Town of Vail, Vail, 970-445-7076.
Saturday, May 30
25th Annual Fire Hydrant 5K & Pet Expo — Support the Larimer Humane Society with this dog-friendly 5K fun-run. 5K run or walk. 8 a.m. Edora Park, 1420 E. Stuart St., Fort Collins, 970-530-2945.
2015 Pinewood Springs Spring Runoff — This 5K starts at 9 a.m, with registration an hour before at 8 a.m, as part of the Lyons Outdoor Games. Pinewood Springs Fire Station, 61 Kiowa Road, Lyons, www.lyonsoutdoorgames.com.
Longmont Kids-Only Triathlon and Try-a-Tri — A beginners triathlon in partnership with the Longmont Triathlon. Kids only race followed by the Try-a-Tri super sprint race. 7:45 a.m. Centennial Pool, 1201 Alpine St., Longmont, 303-651-8406.
Sunday, May 31
35th Longmont Triathlon — Join us for the longest continuous running triathlon in Colorado History. The first wave will begin at 7a.m. 525-yard swim; 12-mile bike; 5k run. 7 a.m. Centennial Pool, 1201 Alpine St., Longmont, 303-651-8406.
Saturday, June 6
American Heart Association Heart Walk — Join thousands as they walk for heart and stroke awareness. One mile and 5K distances. 7:30 a.m. Denver Performing Arts Complex, 1101 13th St., Denver, 866-430-9255.
Taste Race 5K/12K — At 8 a.m. runners will run through Historic Main Street, Louisville, right through all the action of the Taste of Louisville and continue on some of the most beautiful trails in Louisville and Boulder County. Race starts at 8 a.m. Main Street and E. Lafayette Street, Louisville, www.tastehalf.com.
Run the Rockies — Half-marathon starts at 8 a.m., road 10K starts at 8:30 a.m. Frisco Recreation Building, Third Street and Main Street, Frisco, 800-424- 1554 or www.townoffrisco.com.
Buena Vista Bike Fest — Road rides of various distances including a century and metric century. 7 a.m. 719-395-6612 or go to www.bvbf.org.
Sunday, June 7
Garden of the Gods 10 Mile Run — The first leg of the Triple Crown of Running series. Race starts at 7 a.m. Garden of the Gods, 1805 N. 30th St., Colorado Springs, 719-473-2625 or www.gardentenmile.com.
Steamboat Marathon and Half Marathon. 7:30 a.m. Routt County Courthouse, 522 Lincoln Ave., Steamboat Springs, 970-879-0880, www. steamboat-chamber.com.
Wednesday, June 10
Steamboat Bike Week — Group rides and clinics offer the chance to meet fellow cyclists and enjoy a day in the Colorado sun. Various venues across Steamboat Springs, 970-879-0880. Through June 14.
Thursday, June 11
Telluride WOW — Weekend of Wellness is a health and fitness festival for everyone filled with hikes, workout sessions and lectures and social events and a mission of addressing and changing the causes of obesity. Telluride, www. telluridewow.com. Through June 14.
Saturday, June 13
Ironman 70.3 Boulder — 1.2-mile swim, 56-mile bike race and 26.2-mile run. Race starts at 7 a.m. at Boulder Resevoir, 5565 N. 51st St., Boulder, www.ironman.com.
Boulder Sprint Triathalon — 0.5-mile swim, 17.2-mile bike race, and 3.1-mile run. Race starts at 7 a.m. at Boulder Resevoir, 5565 N. 51st St., Boulder, www.ironman.com.
G’Knight Ride — 1-, 3- and 12-mile cruiser bike rides on greenways through Longmont, kids’ festival (3-7 p.m.), music, food, beer garden by Oskar Blues Brewery and pavilion expo. Rides start at 5 p.m. Roosevelt Park, 700 Longs Peak Ave., Longmont, 303-319-9882, www.gknightride.org.
Aspen Gran Frondo — The Aspen Gran Fondo is an epic 50-mile group bike ride in Aspen. The route will have something for everyone with its steep climbs and rolling hills, flat sections and gorgeous scenery. 7 a.m. Start is at Paepcke Park, E. Hopkins Ave., Aspen, 970-429-2090 or www.granfondoaspen.com.
Mt. Evans Ascent Race — A foot race to the top of Mount Evans. Race starts at 7:30 a.m. Echo Lake, Highway 103, Idaho Springs, www.racingunderground.com.
Sunday, June 14
Guanella Pass Hill Climb — Get psyched for this gruelling 11-mile bike ride from Georgetown up 3,150 feet of elevation at grades of 8-12 percent. 7 a.m. Georgetown to Guanella Pass, www.guanellapasshillclimb.com.
Wednesday, June 17
FroYo 5K — The FroYo 5k takes the happiness we experience while enjoying frozen yogurt and combines that with a 5K road run/walk. 7 p.m. Duane Astrophysics Field, 2000 Colorado Ave., Boulder, 303-550-2213.
Friday, June 19
Apsen Food & Wine Classic 5K Charity Race — Lace up your running shoes and hit the pavement with your favorite chefs for this 3.1 mile run through the city streets and parks of Aspen raising money for Wholesome Wave. Day of registration available starting at 6 a.m. Race begins at 7 a.m. Rio Grande Park, Rio Grande Place, Aspen, 877-900-WINE.
Saturday, June 20
Big Gay 5K — Walk or Run this 5K as part of Denver’s PrideFest in support of queer, open and equal rights. 10 a.m. Civic Center Park, E. Broadway Avenue and Colfax, Denver, 303-733-7743.
Father’s Day5K — Celebrate Father’s Day with proof that you can keep up with your kids. 5K run or walk. Registration 7 a.m., race starts at 8:30 a.m. Old Town Fort Collins, 970-221-6655.
30th Annual Sunrise Stampede — The Longmont Sunrise Stampede is a family-oriented 2-mile run/walk and a 10K run on a certified course raising money for the St. Vrain Valley School district. 8 a.m. Longmont High School, Francis Street and 11th Avenue, Longmont, www. sunrisestampede.com.
Kaiser Permanente Bacon Burner 6K — Join in a 3.8 mile out-and-back run that will take place on a paved recreation trail with stunning views of snow capped peaks and Dillon Reservoir. Race starts 9:30 a.m at the Frisco Marina, 267 Marina Road, Frisco, 970-668-9133.
Sunday, June 21
Golden Gran Frondo — Join in this classic bike race. The Golden Gran Fondo offers three distances for bike racers to choose from: 20 miles, 63 miles, and 90 miles. Parfet Park, 10th Street and Washington Avenue, 765-247-2453.
Estes Park Marathon — Participate in a full, half, 10K, 5K or marathon relay. Registration 6 a.m. Estes Park High School, 660 Community Drive, Estes Park, 970-214-4128 or www.epmarathon.org.
Bicycle Tour of Colorado — Cross the state on two wheels over the course of a week starting in Breckenridge and crossing the continental divide four times. Breckenridge Recreation Center, 880 Airport Road, Breckenridge, www.bicycletourcolorado.com. Through June 27.
Thursday, June 25
Crested Butte Bike Week — Experience the birthplace of mountain biking and ride miles and miles of singletrack with the oldest mountain bike festival in the world. Crested Butte, www.cbbikeweek.com. Through June 28.
Saturday, June 27
Bike MS — Ride to cure multiple sclerosis. Saturday: 66, 77, 104 or 124 miles; Sunday: 68 or 75 miles. Starts 6 a.m. Front Range Community College, 3645 W. 112th Ave., Westminster, www.bikemscolorado.org. Through June 28.
Aspen Backcountry Marathon — This full marathon is run almost exclusively on dirt trails. The race is open to individuals and relay teams. 6 a.m. Koch Park, Garmisch & Cooper, Aspen, 970-429-2093.
Monday, June 29
Louisville Slugger Independence Day Tournament — For the 19th year, this girls’ high school tournament will be on display across Boulder. Countywide, Boulder, 303-442-7373.
Randy Weeks Memorial Golf Tournament — Raise funds for the Denver Center of Performing Arts at this charity golf tournament. 12 p.m. shotgun start. Lakewood Country Club, 6800 W. 10th Ave., Lakewood, 303-446-4812.
Saturday, July 4
Firecracker 4K/4 Mile — Known for its laid back atmosphere, super comfy event shirts, amazing crawfish boil, Free Pabst, and the Red, White, and Blue Snow party with a Slip’N Slide finish line. Day of Registration starts at 6 a.m. Run starts at 8 a.m. Erie Community Park, Erie, www.coloradofirecrackerrun.com.
Mt. Evans Freedom Run 5K — Support Mt. Evans Home Health and Hospice, an essential mountain area resource. 8 a.m. Evergreen Middle School, 2059 Hiwan Drive, Evergreen, 303-674-6400.
Friday, July 10
Louisville Spaghetti Open Golf Tournament — Tour the new Coal Creek Golf Course in this annual tournament. 7:30 a.m. Coal Creek Golf Course, 585 W. Dillon Road, Louisville, 303-666-5747.
Saturday, July 11
Triple Bypass Bicycle Tour — A 120-mile bike ride with more than 10,000 feet of elevation gain, from Evergreen to Avon. Go both ways for the heart-pounding Double Triple Bypass, with free bag drop in Loveland and special prizes. Start between 5 and 7 a.m. Day 1 Start: Bergen Park, Evergreen, Day 1 Finish: Harry A. Nottingham Park, Avon, www. triplebypass.org. Through July 12.
LG Triathlon & LG Kid’s Triathlon — The LG tri is a sprint triathlon consisting of a 500-yard pool swim, followed by a 12-mile bike leg, and ending with a 5K run.
The LG Kids TRI event will be divided into three age groups, 6- to 7-year-olds, 8- to 10-year-olds, and 11- to 13-year-olds. All groups will use the same course but the older kids will do extra laps. Eagle Pool and Ice Rink, 1700 Bull Pasture Road, Eagle, www.lgtri.com.
Sunday, July 12
Triple Bypass Bicycle Tour — A 120-mile bike ride with more than 10,000 feet of elevation gain, from Avon to Evergreen. Start between 5 and 7 a.m. The Triple Relay allows three riders to combine efforts and each conquer a pass, from Avon to Copper, Copper to Georgetown, or the anchor position of Georgetown to Evergreen. All relay riders receive a jersey, support and the finish line dinner and party in Evergreen. Day 2 Start: Harry A. Nottingham Park, Avon, Day 2 Finish: Bergen Park, Evergreen, www.triplebypass.org. Through July 12.
Boulder Peak Triathalon — A 1.5K swim, 42K bike race and 10k run. Race starts at 7 a.m. at Boulder Resevoir, 5565 N. 51st St., Boulder, for more information and registration go to www.ironman.com.
Barr Trail Mountain Race — 12.6 miles ascending from 6,570 feet in elevation up Barr Trail to Barr Camp at 10,200 feet in elevation then back down past the starting line just west of the Pikes Peak Cog Railway. 7 a.m. Pikes Peak Cog Railway, 515 Ruxton Avenue, Manitou Springs, www.runpikespeak.com. Tuesday, July 14
Roger’s River Run 5K — This 5K is part of the Rhythm on the River Festival. Registration happens at 6 a.m.; Race starts at 7:30 a.m. Roger’s Grove Park, Boston St. & Hover, Longmont, 303-776-6050.
Saturday, July 18
Aspen Valley Marathon — Join in this Boston Marathon qualifier, or try your feet at a half-marathon or the 5K. 6 a.m. Wagner Park, S. Mill St., Aspen, www.aspenvalleymarathon.com.
AUDI Power of Four Trail Race — A 50K ultra trail-running race that covers all four area mountains. Includes a 22K trail run as well as a Vertical K race. The 50K and Vertical K are part of the U.S. Skyrunner Series. The races begin at the base of Aspen. Aspen Mountain, 601 E. Dean St., Aspen, 970-925-1220. Through July 19.
Courage Classic — Support the Colorado Childrens’ Hospital with this three-day cycling event starting and finishing at Copper Mountain. Copper Mountain Resort, 209 10 Mile Circle, Frisco, www.childrenscoloradofoundation.org/courage-classic. Through July 20.
Second Annual Frisco Triathlon — 3K stand-up paddleboard, 15K mountain bike, 5K trail running. Race starts at 8:30 a.m. at Frisco Marina, 267 Marina Road, Frisco, Frisco, 970-668-5276, ext. 3057.
Sunday, July 19
REVEL Rockies Marathon and Half-Marathon — It’s all downhill in this Evergreen to Morrison marathon or half-marathon. Full marathon course is Squa Pass Road to Bandimere Speedway; start 6 a.m. at Squaw Pass Road near the old Echo Mountain Ski Resort; Half- Marathon course is Evergreen to Bandimere Speedway; start 6:30 a.m. at Lewis Ridge Road and Evergreen Parkway, Evergreen, www.runrevel.com/rdv.
Thursday, July 23
Evegreen Kids Triathalon — Ages 5-6 start at 9 a.m. with a one lap swim, 400-meter run, and .5-mile bike; Ages 7-8 start at 9:15 a.m. with two-lap swim, .5-mile run, and 1-mile bike; Ages 9-10 start at 9:30 a.m. with a four-lap swim, 1-mile run and 2-mile bike; Ages 11-13 start at 9:45 a.m. with a four-lap swim, 1-mile run, and 2-mile bike. Buchanan Park Recreation Center, 32003 Ellingwood Trail, Evergreen, 720-880-1100.
Colorado Freeride Festival — Mountain bikers battle for more than $45,000 in prize money. Trestle Bike Park, Winter Park Resort, 85 Parsenn Road, Winter Park, www. coloradofreeridefestival.com. Through July 26.
Friday, July 24
35th Annual Black Diamond Open Golf Tournament — Join for 18 holes of golf plus other competitions and prize. Check-in begins at 6:30 a.m., shotgun start at 7:30 a.m. Indian Peaks Golf Course, 2300 Indian Peaks Trail, Lafayette, 303-666-9555.
Saturday, July 25
Bob Cook Mt. Evans Memorial Hill Climb — Join an iconic bicycle race that takes place on the highest paved road in the United States.
It’s a 6,630-feet climb from an elevation of 7,500 feet all the way up to 14,130 feet. Race begins in Idaho Springs, 303-931-6455 or www.bicyclerace.com.
Friday, July 31
Enduro World Series Mountain Bike Race — See the only U.S. stop for the Enduro World Series. Various Locations, Crested Butte, www.bigmountainenduro.com. Through August 2.
Saturday, August 1
Ironkids Boulder Triathalon — Distances vary by age bracket. Race starts at 8:30 a.m. at Boulder Resevoir, 5565 N. 51st St., Boulder, www.ironman.com.
2015 Littleton Twilight Criterium — USACycling presents the 2015 Little Criterium, a bicycle race of a specified number of laps on a closed course over public roads closed to normal traffic. Downtown Littleton, www.usacycling.org.
ZOOT Aspen Triathlon/Duathlon — This event consists of an 800-yard swim, 17-mile bike to the spectacular Maroon Bells, and a 4-mile run in Maroon Creek Valley, 970-544-4100.
AUDI Power of Four Mountain Bike Race — This race combines single-track trails on all four local ski areas traversing from Snowmass to Aspen into one challenging course. Riders will finish with a descent down Aspen Mountain into Gondola Plaza. Aspen Mountain, 601 E. Dean St., Aspen, 970-925-1220.
Rocky Mountain Half Marathon — Part of the National Park Half Marathon Series, designed to leave you with the energy to enjoy the park. Race begins at 7:30 a.m. The Stanley Hotel, 333 Wonderview Ave., Estes Park, 949-295-3302.
Sunday, August 2
Ironman Boulder — 1.2-mile swim, 56-mile bike race and 26.2-mile run. Race starts at 7 a.m. at Boulder Resevoir, 5565 N. 51st St., Boulder, www.ironman.com.
Red Bull Rise — Try your hand at a 12-hour endurance running event taking place on Aspen Mountain.
Runners from around the world will compete in solo, duo and team divisions running up the Vertical K course with 3,000 vertical feet of elevation gain in 3 miles and then take the gondola down. Aspen Mountain, 601 E. Dean St., Aspen, 970-925-1220.
Lake Dillon Challenge Rowing Regatta — Check out the highest and most scenic regatta in North America, celebrating “green,” healthy recreational uses of the lake and environment. 2.5 mile or 6 mile courses. First heat starts 8:30 a.m. Frisco Bay Marina, 267 Marina Road, Frisco, 970-409-8435.
Saturday, August 8
Red Rocks Century — Join the toughest and most scenic of the Colorado Front Range cycling events. Choose from four great rides to make your day as challenging as you want. Go big with the full 100-mile century, or go with one of the other options: the 62- mile metric century, or the 33-mile Challenge ride. Race starts at 5:30 a.m. at T.E.V. Edelweiss Club, 17832 Highway 8, Morrison, www.redrockscentury. com.
Georgetown to Idaho Springs Half-Marathon — 8 a.m. Race starts next to Georgetown Lake in Georgetown, www.gtishalf.org.
Tuesday, August 11
Trans Rockies Run 6 — This stage race takes you on an epic journey from Buena Vista to Beaver Creek over six incredible days. 120 miles and 20,000 feet of climbing. Starts at 7 a.m. at Buena Vista Heritage Museum, 506 E. Main St., Buena Vista, 866-373-3376.
Friday, August 14
USA Pro Challenge and Festivities — Steamboat Circuit Race on August 17 and the start of the Steamboat to A-Basin leg on August 18. Steamboat Springs, www.steamboatprocycling.com. Through August 18.
Saturday, August 15
Ride for the Cure — Up to 100 miles of bike riding challenges throughout the upper Roaring Fork Valley and festivities in Snowmass Village for breast cancer awareness and education. Susan G. Komen Foundation, 1450 Ute Ave., Aspen, 970-920-0250.
Run the Rockies Trail 10K and Half-Marathon — Half marathon at 8 a.m. and 10K at 8:30 a.m. at the Frisco Nordic Center, 616 Recreation Way, Frisco, 970-668-9133.
Vida Mountain Bike Series at Crested Butte — Join Boulder’s Yeti Cycles as they take over the mountain for this downhill event. Evolution Bike Park, 500 Gothic Road, Crested Butte, www.vidamtb.com. Through August 16.
Pikes Peak Ascent — The second leg of the Triple Crown of Running Series. 13.32 miles long and gains 7,815 feet in elevation. 7 a.m. Memorial Park, Manitou Springs, www.pikespeakmarathon.org or call 719-473-2625.
Sunday, August 16
Pikes Peak Marathon — 26.21 miles ascending Pikes Peak. 7 a.m. Memorial Park, Manitou Springs, www.pikespeakmarathon.org or call 719-473-2625.
Monday, August 17
USA Pro Cycling Challenge — A multi-stage race for sprinters, climbers and all-around tough riders ready to cross about 100 miles each day traversing Colorado mountain passes. Route starts in Steamboat Spring and concludes passing through Golden and spinning into Denver, www.usaprocyclingchallenge. com. Through Aug. 23.
Wednesday, August 19
USA Pro Cycling Challenge: Stage 3 and 4 — Stage 3 begins at Copper Mountain Resort and ends with a breathtaking descent from Independence Pass into the town of Aspen. Stage 4 begins on Main Street in Aspen and traverses several mountain passes to Breckenridge. Aspen, www.aspenupcc.com or www. usaprocyclingchallenge.com. Through August 20.
Thursday, August 20
USA Pro Cycling Challenge: Stage 4 and 5 — Thursday racers will start in Aspen and finish in Breckenridge. Friday will be the Breckenridge Individual Time Trials. www.usaprocyclingchallenge. com. Through August 21.
Saturday, August 22
Muderella Colorado — Surround yourself with thousands of like-minded women who have all committed to cross the finish line and to help each other get there on this world class, 5- to 7-mile-long, muddy obstacle course. 60 Carriage Way, Snowmass Village, www.mudderella.com.
Sunday, August 23
Enduro-X Mountain Bike Race — See one of the longest Enduro courses in the world, featuring singletrack descents over 2000 vertical feet per stage.
Steamboat Springs Resort, 2305 Mt Werner Circle, Steamboat Springs, www.enduro-xrace.com.
Sunday, August 30
Good Sam Bike Jam — Compete in one of Colorado’s most challenging centuries with 8,300 feet of climbing and a timed King/Queen of the Mountain competition or any of the six easier routes all the way down to a three-mile flat route for the entire family organized in partnership with The Butterfly Pavilion to support the “Wings to Wellness” community wellness initiative. Rolling starts between 5 and 8 a.m.. Start and Finish is at the Good Samaritan Medical Center, 200 Exempla Circle, Lafayette, www.goodsambikejam.org.
Friday, September 4
Coal Miner Classic Golf Tournament — Tee off for fall with this traditional golf tournament. 7 a.m. registration; 8:30 a.m. shotgun start. Colorado National Golf Club, 2700 Vista Parkway, Erie, 303-828-3440.
