Lyons, CO
Old Man Winter Bike Rally & Run
Old Man Winter Bike Rally & Run is a February winter endurance festival in Lyons, Colorado, with a 5K, a 10K and a half marathon for runners, plus bike rides and run-and-ride combos.23 Every event starts and finishes at Bohn Park, and the runs mix pavement, gravel and trail.257 It goes ahead in snow or shine, with courses modified if conditions demand it, and ends in an after party with a hot meal, bonfires and saunas.11013
- Date
- First start9:30 AM MST
- Location199 2nd Ave, Lyons, CO 80504
- Distances5K · 10K · Half Marathon
- SurfaceRoad
Bib Scout Report
| Event | Distance | Start | Current fee | Next increase |
|---|---|---|---|---|
| 5K Run | 5K | 10:30 AM MST | $55 | $60 on |
| 10k Run | 10K | 10:00 AM MST | $70 | $75 on |
| Half Marathon Run | Half Marathon | 9:30 AM MST | $135 | $145 on |
| Standard Run 10k / Bike 40mi Combo | — | 10:00 AM MST | $190 | $200 on |
| Mini Run 5k / Bike 23mi Combo | — | 10:30 AM MST | $160 | $170 on |
| RELAY - Standard Run 10k / Bike 40mi Combo | — | 10:30 AM MST | $95 | — |
| RELAY - Mini Run 5k / Bike 23mi Combo | — | 10:30 AM MST | $80 | — |
Scouted from the official RunSignup listing. Fees shown exclude processing fees.Merit badges are detected from the organizer’s description. Dates, courses, and prices can change — confirm on the registration page.
See something wrong on this page?
Old Man Winter Bike Rally & Run race guide
Facts checked against the sources listed below. Race-week details describe the 2027 edition.
| Start and finish | Bohn Park, 199 2nd Ave, Lyons, Colorado, for every event.2 |
|---|---|
| Run distances | 5K, 10K and half marathon.3 |
| Half marathon | 13.1 miles through Lyons, Apple Valley and the St. Vrain, with 536 feet of climbing.7 |
| 5K surface | About 50% trail and 50% paved.5 |
| Run and ride combo | The 10K run, then the 40-mile ride. Only time on the courses counts.8 |
| Mini combo | The 5K run, then the 23-mile bike course.9 |
| Weather policy | Snow or shine. Courses are modified in heavy or deep snow.110 |
| Minimum age | 6 for the runs and 10 for the cycling events.10 |
| Dogs | Welcome with their owners on the running courses where posted.2 |
| Transfers | Free, to another person, through RunSignup.2 |
| Typical weather | Early February in Boulder County averages 45 degrees with sunny skies, per the organizers.15 |
The run courses
The 5K meanders through old town Lyons and the trails of Bohn Park, and finishes with a fast paved loop. The organizers describe it as about 50% trail and 50% paved.5
The 10K climbs to the base of the foothills and takes in a singletrack section of the Picture Rock trail before reaching Red Gulch Road.6 It turns around at a point with refreshments and returns through Bohn Park.6
The half marathon is a 13.1-mile tour of Lyons, Apple Valley and the St. Vrain with 536 feet of climbing, which the organizers call relatively flat.7 It runs along rivers and gravel paths, passes through the Planet Bluegrass property and a tunnel under Highway 36 to Apple Valley Road, and rejoins the 10K course to finish.7
Published routes can change with conditions, so the final event briefing is the one to follow.6
Run and ride combos
The standard combo is the 10K run at 10:00 a.m. followed by the 40-mile ride at noon, with time in between to go to your car and change.8 There is no need to rush the changeover, because only your times on the two courses are counted.8
The mini combo pairs the 5K run with the 23-mile bike course.9 In the relay version, one person runs and the other rides, and the two times are added together.8
Race-day schedule
The organizers describe the published times as the expected format, with final start times, packet pickup windows and cutoff details to be confirmed before the event.4
On that expected schedule, the half marathon starts at 9:30 a.m., the 10K at 10:00 a.m. and the 5K at 10:30 a.m., after the 75-mile bike start at 9:00 a.m.3 Awards for the 75-mile ride, 10K, 5K and half marathon are at 1 p.m.3
Every course is timed, though the event is run under the rules of the road and all traffic laws apply.2
Winter conditions
This is a snow or shine event.10 If it is snowing hard or the snow is deep, courses are modified so the event can continue.1 If conditions change mid-event, riders can be moved to a shorter route while the run continues where it is safe, and Boulder County law enforcement may postpone the event if roads become unsafe.2
The rules warn runners and riders to expect gravel and ice on road surfaces.10 The packing checklist starts with layers you can add or remove, plus gloves, eye protection and warm socks.4
The weather has ranged widely. According to the organizers' own history, early February in Boulder County averages 45 degrees with sunny skies, 2026 was a clear 60-degree day, and in 2020 an unforecast storm dropped 8 inches of snow and forced a mid-race cancellation.15
Packet pickup and parking
Packets can be shipped ahead of the event as an option at registration.3 In-person pickup is listed for Friday, February 5, from 4 to 6 p.m. and Saturday, February 6, from 1 to 5 p.m.3 The final 2027 location and windows will be announced by email.4
Someone else can collect your packet if they bring your confirmation email with its QR code and an image of your photo ID.11
Parking in Bohn Park is expected to fill by 9:30 a.m.12 Other options are Lyons Middle and High School at 100 McConnell Dr, a short walk from the park, and the water treatment lot across 2nd Ave.12
Lyons is 43 miles from Denver, 63 miles from Fort Collins and 70 miles from Colorado Springs.12
The after party and what is included
Every participant gets a hot post-race meal and a cold drink at the finish.5 The after party adds a DJ, saunas, bonfires and s'mores, and the organizers suggest bringing a change of clothes.13
Aid stations on the run courses are described as well stocked with real food and hydration.6 Entry includes a custom RFID bib with chip timing.17
Rules and registration policies
- Runners must be at least 6 years old, and cyclists at least 10.10
- Dogs are welcome with their owners on the running courses where posted, and must be leashed at the after party.2
- No short-cutting. Stay on the marked course.10
- Entries can be transferred to another person at no charge through RunSignup.2
- The last day to defer a 2027 registration is January 27.2 Deferred runners are invited to register for 2028 at 50% off the lowest price.16
- You can switch to a different event through RunSignup, paying the difference if the new one costs more.2
Prizes
The 10K carries a $1,000 prize purse split across the top five in each gender category.14 The 5K, half marathon and combos award product prizes to the top three.14
At least three participants are needed in a gender category for prizes to be awarded.14
Old Man Winter Bike Rally & Run FAQ
Where is the Old Man Winter Rally held?
In Lyons, Colorado. All events start and finish at Bohn Park, 199 2nd Ave.2
What running distances does Old Man Winter offer?
A 5K, a 10K and a half marathon, plus combos that pair the 10K with a 40-mile ride or the 5K with a 23-mile ride.389
How hilly is the Old Man Winter half marathon?
It has 536 feet of climbing over 13.1 miles, which the organizers describe as relatively flat.7
What happens if it snows on race day?
The event goes ahead in snow or shine. In heavy or deep snow the courses are modified, and local law enforcement may postpone the event if roads become unsafe.1210
How does the run and ride combo work?
You run the 10K at 10:00 a.m. and start the 40-mile ride at noon. Only your times on the two courses count, so the changeover is not timed.8
Can I bring my dog to Old Man Winter?
Yes. Dogs are welcome with their owners on the running courses where posted, and must stay leashed at the after party.2
Can I transfer or defer my Old Man Winter entry?
Yes. Transfers to another person are free through RunSignup, and the last day to defer a 2027 registration is January 27.2
How old do you have to be to run?
At least 6 for the run events and 10 for the cycling events.10
Sources
- Old Man Winter Rally: Home (oldmanwinterrally.com)
- Old Man Winter Rally: FAQ (oldmanwinterrally.com)
- Old Man Winter Rally: Schedule (oldmanwinterrally.com)
- Old Man Winter Rally: Event info (oldmanwinterrally.com)
- Old Man Winter Rally: 5K run (oldmanwinterrally.com)
- Old Man Winter Rally: 10K run (oldmanwinterrally.com)
- Old Man Winter Rally: Half marathon (oldmanwinterrally.com)
- Old Man Winter Rally: Run and bike combo (oldmanwinterrally.com)
- Old Man Winter Rally: Mini run and bike combo (oldmanwinterrally.com)
- Old Man Winter Rally: Rules (oldmanwinterrally.com)
- Old Man Winter Rally: Packet pick-up (oldmanwinterrally.com)
- Old Man Winter Rally: Getting to the event (oldmanwinterrally.com)
- Old Man Winter Rally: After party (oldmanwinterrally.com)
- Old Man Winter Rally: Prizes (oldmanwinterrally.com)
- Old Man Winter Rally: Weather history (oldmanwinterrally.com)
- Old Man Winter on RunSignup: Defer and transfer (runsignup.com)
- RunSignup: Old Man Winter Bike Rally & Run listing (runsignup.com)
From the organizer
Old Man Winter Bike Rally & Run is a must-do Colorado endurance festival with mixed terrain adventures for all levels of riders and runners. All runs and rides are followed by a community after party with bonfires, hot food, great bands, s'mores, saunas, and more.
More in Lyons: all Lyons races