Featured Events
Winter 2014-2015
Winter 2014-2015
Dec. 14, 2014
Jan. 25, 2015
Feb. 8, 2015
April 4, 2015
May 9, 2015
Sprint & Olympic
June 7, 2015
June 13, 2015
Summer 2015
July 26, 2015
August 30, 2015
Sept. 12-13, 2015
Sept. 12, 2015
Sept. 13, 2015
Sept. 20 2015
Winter 2014-2015
Winter 2014-2015
Dec. 14, 2014
Jan. 25, 2015
Feb. 8, 2015
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January 2015
Racing Underground January Events
| Date |
Event |
Location |
Website |
| 17 |
Chilly Cheeks Winter Duathlon Series #2 |
Cherry Creek State Park - Aurora, CO |
Website |
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Details: A fun low-key, low-cost winter run & bike series. Each month features a different format, with a total run distance of 4 miles and bike of approximately 10 miles. Each race draws 200-400 participants!
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Other area January Events
- 17 - Chilly Cheeks Winter Duathlon #2 - (1.5M Run/3.6M Bike/2.5M Run/7.2M Bike) - Cherry Creek State Park - Denver, Colorado - 10:00 a.m. - 303.642.7917
- 24 Aria Athletic Winter Triathlon, (5k Snowshoe, 10k Bike, 8K XC Ski), CMC Timberline Campus, Leadville, Colorado, 10:00 a.m., 970.845.0931
February 2015
Racing Underground February Events
| Date |
Event |
Location |
Website |
| 21 |
Chilly Cheeks Winter Duathlon Series #3 |
Cherry Creek State Park - Aurora, CO |
Website |
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Details: A fun low-key, low-cost winter run & bike series. Each month features a different format, with a total run distance of 4 miles and bike of approximately 10 miles. Each race draws 200-400 participants!
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Other area February Events
- 14 Mt. Taylor Winter Quadrathlon, (12M Bike/5M Run/2M Ski/2M Snowshoe/4M Ski/5M Run/13M Bike), Grants, New Mexico, 800.748.2142
- 21 - Chilly Cheeks Winter Duathlon #3 - (10.8M Bike/4M Run) - Cherry Creek State Park - Denver, Colorado - 10:00 a.m. - 303.642.7917
March 2015
April 2014
- 19 Pole, Pedal, Paddle, (Back country Ski/Bike/Kayak), Monarch to Sailda, Colorado, 719.221.1710
May 2015
Racing Underground May Events
| Date |
Event |
Location |
Website |
| 9 |
17th Annual Barkin' Dog Duathlon |
Cherry Creek State Park - Aurora, CO |
Website |
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Details: For 17 years, the Barkin' Dog Duathlon has served as the unofficial opening race to Colorado's multisport season! Consistently one of the largest duathlons in the western US, the race sells out every year. The Barkin' Dog offers something for everyone, with a $1,000 prize purse for the elites, gender-specific tech shirts, a catered post-race meal, awesome sponsor drawing and more. Choose from the standard 5K run, 30K bike, 5k run or the shorter 2K run, 15K bike, 5K run. Beginners are always welcome, and more than 1,000 first timers have made their debut in the Barkin' Dog Duathlon!
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Other area May Events
- 9 - Barkin' Dog Duathlon - (5K Run/30K Bike/5k Run or 2K Run/15K Bike/5K Run) - Cherry Creek State Park - Aurora, Colorado - 7:00 a.m.- 303.642.7917
- 10 - TRR Colorado Biathlon - (1M Kayak/5k Run) - Cherry Creek State Park - Aurora, Colorado - 9:00 a.m.- 703.532.6070
- 16 - Summer Open Triathlon - (0.5M Swim/12.4M Bike/3.1M Bike) - Union Reservoir - Longmont, Colorado - 8:00 a.m.- 303.408.1195
- 17 Tri the Rock Youth Triathlon (various distances, swim/bike/run), Butterfield Park, Castle Rock, Colorado, 8:00 a.m., 720.733.2284
- 23 - Pelican Fest Triathlon - (800m Swim/10M Bike/5k Run) - Pelican Lake - Windsor, Colorado - 8:00 a.m.- 970.308.4499
- 30 - XTERRA Lory Triathlon - (0.5M Swim/12.2M Bike/4.8M Run) - Lory State Park - Fort Collins, Colorado - 7:50 a.m.- 303.408.1195
- 30 - Longmont Kids Triathlon - (Various distances, Swim/Bike/Run) - Centennial Pool - Longmont, Colorado - 7:45 a.m.- 303.651.8406
- 31 - Longmont Triathlon - (525Y Swim/12M Bike/5k Run) - Centennial Pool - Longmont, Colorado - 7:00 a.m.- 303.651.8406
- 31 - Colorado Sprint Triathlon - (0.5M Swim/17M Bike/5k Run) - Boulder, Colorado - 8:00 a.m.- 303.408.1195
June 2015
Racing Underground June Events
| Date |
Event |
Location |
Website |
| 7 |
Crescent Moon Sprint Tri |
Aurora Reservoir - Aurora, CO |
Website |
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Details: There is no better way to start the Front Range triathlon season than the Crescent Moon! Enjoy a 750 meter swim in crystal clear water, a 20K closed bike course, and a scenic 5K run on a mix of bike path and well maintained dirt roadways. Celebrate with a catered meal, a fantastic sponsor expo, and an atmosphere you can only get at a Racing Underground event!
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| 7 |
Crescent Moon Olympic Tri |
Aurora Reservoir - Aurora, CO |
Website |
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Details: The first Olympic tri of the year on the Front Range! Our early June date make this the perfect test of your winter training, and is the perfect tune-up race for the Boulder IM events. Great swag and post-race food await!!!
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Other area June Events
- 4 Boulder Stroke & Stride Series #1 (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
- 6 HRCA Tune Up Triathlon (500Y pool Swim/12M Bike/5k Run), Recreation Center at Westridge, Highlands Ranch, Colorado, 6:00 a.m., 202.791.2500
- 7 - Crescent Moon Sprint Triathlon - (750m Swim/20k Bike/5k Run) - Aurora Reservoir - Aurora, Colorado - 8:00 a.m. - 303.642.7917
- 7 - Crescent Moon Olympic Triathlon - (1,500m Swim/40k Bike/10k Run) - Aurora Reservoir - Aurora, Colorado - 8:00 a.m. - 303.642.7917
- 9 Aquaman Series #1 (05M/1M/1.5M/2M Swim Only or Aquathlon 0.5M/1M/1.5M/2M Swim & 5k Run), Cherry Creek State Park, Denver, Colorado, 6:15 p.m., 303.408.1195
- 10 Boulder Stroke & Stride Series #2 (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
- 13 Boulder Sprint Triathlon (0.5M Swim/17.2M Bike/3.1M Run), Boulder Reservoir, Boulder, Colorado, 813.868.5940
- 13 Ironman 70.3 (1.2M Swim/56M Bike/13.1M Run), Boulder Reservoir, Boulder, Colorado, 813.868.5940
- 13 Mini Ha Ha Triathlon (300Y pool Swim/11M bike/2M Run), Community Center Pool, Broomfield, Colorado, 7:30 a.m., 303.460.6918
- 14 XTERRA Pagosa Springs (1k Swim/18.5M Bike/6.9M Run), Lake Pagosa, Pagosa Springs, Colorado, 9:00 a.m., 970.398.0612
- 16 Aquaman Series #2 (05M/1M/1.5M/2M Swim Only or Aquathlon 0.5M/1M/1.5M/2M Swim & 5k Run), Cherry Creek State Park, Denver, Colorado, 6:15 p.m., 303.408.1195
- 18 Boulder Stroke & Stride Series #3 (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
- 19 - Metro Brokers TriathlON Friday - (0.5M Swim/12M Bike/5k Run) - Cherry Creek State Park - Denver, Colorado - 6:00 p.m.- 303.843.0100
- 20 XTERRA Curt Gowdy (1200m Swim/14.1M Bike/5.4M Run), Curt Gowdy Park, Cheyenne, Wyoming, 9:00 a.m., 303.408.1195
- 20 - Lookout Mountain Triathlon - (500m pool Swim/10M Bike/5k Run) - Mt Vernon Country Club - Golden, Colorado - 6:30 a.m.- 303.960.8129
- 21 USAT Splash & Dash, (various distances), Denver, Colorado, 719.597.9090
- 23 Aquaman Series #3 (05M/1M/1.5M/2M Swim Only or Aquathlon 0.5M/1M/1.5M/2M Swim & 5k Run), Cherry Creek State Park, Denver, Colorado, 6:15 p.m., 303.408.1195
- 25 Boulder Stroke & Stride Series #4 (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
- 27 TriBella Triathlon (0.5M Swim/10M Bike/5k Run) (0.25M Swim/8M Bike/2M Run), Cherry Creek State Park, Denver, Colorado, 8:00 a.m., 303.408.1195
- 27 Lake to Lake Triathlon (1.5k Swim/30M Bike/10k Run), High School, Loveland, Colorado, 6:30 a.m., 970.669.6372
- 27 Tri the Boat Triathlon (sprint & Olympic), Stage Coach State Park, Steamboat Springs, Colorado, 8:00 a.m., 941.961.7575
- 28 - Tri on the Plains - (750m Swim/14M Bike/5k Run) - North Sterling Reservoir - Sterling, Colorado - 7:30 a.m.- 970.580.1166
- 28 Tri the Boat Triathlon (Half), Stage Coach State Park, Steamboat Springs, Colorado, 8:00 a.m., 941.961.7575
- 30 Aquaman Series #4 (05M/1M/1.5M/2M Swim Only or Aquathlon 0.5M/1M/1.5M/2M Swim & 5k Run), Cherry Creek State Park, Denver, Colorado, 6:15 p.m., 303.408.1195
July 2015
Racing Underground July Events
| Date |
Event |
Location |
Website |
| 26 |
Evergreen Sprint Triathlon |
Evergreen Lakehouse in Evergreen, CO |
Website |
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Details: Triathlon returned to Evergreen in 2012, to the rave reviews of participants! Evergreen Lake is a spectacular venue, and this 750 meer swim, 12 mile bike, 5K run course features world class scenery and a great foothills course just 25 minutes from Denver. Come see why this race has gotten bigger every year!!!
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Other area July Events
- 1 Boulder Stroke & Stride Series #5 (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
- 7 Aquaman Series #5 (05M/1M/1.5M/2M Swim Only or Aquathlon 0.5M/1M/1.5M/2M Swim & 5k Run), Cherry Creek State Park, Denver, Colorado, 6:15 p.m., 303.408.1195
- 9 Boulder Stroke & Stride Series #6 (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
- 11-12 Leadville Silver King/Queen (50M Mtn Bike/50M Run), Leadville, Colorado, 719.219.9351
- 12 Boulder Peak Triathlon (1.5k Swim/42k Bike/10k Run), Boulder Reservoir, Boulder, Colorado, 813.868.5940
- 14 Aquaman Series #6 (05M/1M/1.5M/2M Swim Only or Aquathlon 0.5M/1M/1.5M/2M Swim & 5k Run), Cherry Creek State Park, Denver, Colorado, 6:15 p.m., 303.408.1195
- 16 Boulder Stroke & Stride Series #7 (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
- 18 - YOLO Triathlon - (sprint & olympic) - Aurora Reservoir - Aurora, Colorado - 6:15/7:15 a.m.- 303.888.3227
- 18 Summit Games Triathlon (Paddle Board/Mtn Bike/Run), Bay Marina, Frisco, Colorado, 8:30 a.m., 800.424.1554
- 18 XTERRA Beaver Creek Triathlon (1M Swim/15.5M Bike/5.75M Run) (0.5M Swim/9M Bike/5k Run) Nottingham Lake, Avon, Colorado, 9:00 a.m., 970.845.5293
- 19 - Steamboat Lake Sprint Triathlon - (750m Swim/12.4M Bike/3.5M Run) - Steamboat Lake State Park - Steamboat, Colorado - 8:00 a.m.- 303.408.1195
- 19 Tri it High Triathlon & Duathlon (500m pool Swim/20k Bike/5k Run) (5k Run/20k Bike/5k Run), Recreation Center, Leadville, Colorado, 719.486.7484
- 21 Aquaman Series #7 (05M/1M/1.5M/2M Swim Only or Aquathlon 0.5M/1M/1.5M/2M Swim & 5k Run), Cherry Creek State Park, Denver, Colorado, 6:15 p.m., 303.408.1195
- 23 Boulder Stroke & Stride Series #8 (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
- 25 XTERRA Aspen Valley (1200m Swim/12M Bike/3M Run), Private Property, Carbondale, Colorado, 10:00 a.m., 303.408.1195
- 26 - Evergreen Triathlon - (750m Swim/12M Bike/5k Run) - Evergreen Lake House - Evergreen, Colorado - 7:00 a.m.- 303.642.7917
- 29 Boulder Stroke & Stride Series #9 (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
August 2015
Racing Underground August Events
| Date |
Event |
Location |
Website |
| 30 |
My Way or the Tri Way |
Aurora Reservoir - Aurora, CO |
Website |
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Details: The Funnest Tri you will do this year! My Way or the Tri Way allows you to pick the order you swim, bike, and run. Don't like one of the three sports? Then choose a 2-event option like bike-run-bike or swim-run-swim. Enjoy a cold wet finisher towel and a catered post-race lunch once you are done. This is also a family-friendly event with a jumpy castle for the kids and sign making station for your spectators!
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Other area August Events
- 1 USAT Youth Splash & Dash (various distances), Steamboat Springs, Colorado, 179.597.9090
- 2 Ironman Triathlon (2.6M Swim/112M Bike/26.2M Run), Boulder Reservoir, Boulder, Colorado, 813.868.5940
- 2 Tri for the Cure (500m Swim/10M Bike/5k Run), Cherry Creek State Park, Denver, Colorado, 7:00 a.m., 303.430.2969
- 6 Boulder Stroke & Stride Series Raindate (750m/1500m Swim & 5k Run), Boulder Reservoir, Boulder, Colorado, 6:00 p.m., 303.408.1195
- 8 XTERRA Snow Mountain Ranch (1000m Swim/14M Bike/4M Run), Gaylord Reservoir, Winter Park, Colorado, 10:00 a.m., 303.960.8129
- 8 Splash Mash & Dash Triathlon (500Y pool Swim/10M Bike/3.5M Run), Center at Northridge, Highlands Ranch, Colorado, 6:00 a.m., 303.791.2500
- 9 - Outdoor Divas Triathlon - (750m Swim/12.4M Bike/3.1M Run) - Union Reservoir - Longmont, Colorado - 8:00 a.m.- 303.408.1195
- 16 - Steamboat Triathlon - (1.5k Swim/24.8M Bike/10k Run) (1.5k Swim/40k Bike) (0.5M Swim/12.5M Bike/5k Run) - Lake Catamount - Steamboat Springs, Colorado - 8:00 a.m.- 303.408.1195
- 22 - XTERRA Buffalo Creek Triathlon - (1500m Swim/22M Bike/5M Run) - Wellington Lake - Bailey, Colorado - 8:15 a.m.- 303.408.1195
- 22 USAT Youth Splash & Dash (various distances), Colorado Springs, Colorado, 719.597.9090
- 23 Stapleton Kids Triathlon (various distances), Jet Stream Pool, Denver, Colorado, 8:00 a.m., 303.388.0724
- 29 Without Limits Open Water Swim (1.2M/2.4M Swim), Boulder Reservoir, Boulder, Colorado, 7:00 a.m., 303.408.1195
- 30 - My Way or the Tri Way Where you pick the order! - Triathlon (swim, bike & run) - Duathlon (run & bike) - Aquathlon (swim & run) - Aquabike (swim & bike) - (750m Swim/20k Bike/3.5 mile Run) - Aurora Reservoir - Aurora, Colorado - 7:30 a.m. - 303.642.7917
- 30 XTERRA All Womens Triathlon (sprint & Olympic), Bald Eagle Lake, Steamboat Springs, Colorado, 8:00 a.m., 941.961.7575
September 2015
Racing Underground September Events
| Date |
Event |
Location |
Website |
| 12 |
XTERRA Fruita Triathlon |
Highline Lake State Park - Fruita, CO |
Website |
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Details: The Desert's Edge Triathlon Festival has become THE fall road trip for triathletes from around the Rocky Mountain Region! And athletes RAVED about our new warmer mid-September date in 2014! We anticipate a sold-out event in 2015!!! Camp right at the race site, and race one of the best off-road courses of the year! A fun mix of single-track and double track, suitable for all ability levels.
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| 13 |
Desert's Edge Sprint & Olympic Tri |
Highline Lake State Park - Fruita, CO |
Website |
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Details: The Desert's Edge Triathlon Festival has become THE fall road trip for triathletes from around the Rocky Mountain Region! And athletes RAVED about our new warmer mid-September date in 2014! Choose the sprint or Olympic distance on Sunday (or Saturday's Off-Road), camp just 100 yards from transition, and enjoy what many have described as the most scenic tri course in the state! Swim in a beautiful desert oasis, bike on smooth pavement, and run the trail loop around the lake. There is no better way to end the Colorado tri Season.
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| 20 |
Littlefoot Triathlon |
Bear Creek Lake Park - Lakewood, CO |
Website |
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Details: The Littlefoot Triathlon features a 750 meter swim in Soda Lake, a 15K single loop bike ride through the scenic 2,500 acre park, and a beautiful 5K run course that finishes in the expo area at the Bear Creek Marina.
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Other area September Events
- 12-13 - Desert's Edge Triathlon Festival - Saturday: XTERRA Fruita; Sunday: Road Sprint/Olympic - Highline Lake State Park, Fruita, Colorado - 9:00 a.m.- 303.642.7917
- 12 - XTERRA Fruita - 1,200m Swim, 12 Mile MTB, 4.5 Mile Run - Highline Lake State Park, Fruita, Colorado - 9:00 a.m.- 303.642.7917
- 12 Harvest Moon Triathlon (1.2M Swim/56M Bike/13.1M Run), Aurora Reservoir, Aurora, Colorado, 7:30 a.m., 303.408.1195
- 13 - Desert's Edge Sprint & Olympic Tri - Highline Lake State Park, Fruita, Colorado - 9:00 a.m.- 303.642.7917
- 20 - Littlefoot Triathlon - (750m Swim 15k Bike/5k Run) - Bear Creek Lake Park - Lakewood, Colorado - 7:00 a.m.- 303.642.7917
- 27 Oktoberfest Triathlon (750m Swim/12.4M Bike/5k Run), Union Reservoir, Longmont, Colorado, 8:00 a.m., 303.408.1195
October 2015
November 2015
December 2015
Racing Underground December Events
| Date |
Event |
Location |
Website |
| TBD |
Chilly Cheeks Winter Duathlon Series #1 |
Cherry Creek State Park - Aurora, CO |
Website |
|
Details: A fun low-key, low-cost winter run & bike series. Each month features a different format, with a total run distance of 4 miles and bike of approximately 10 miles. Each race draws 200-400 participants!
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Other area December Events
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