US MTB Series
Dark Mountain Rumble XC
The US MTB Series travels back to Dark Mountain in 2027. This is a great mountain bike trail with challenging climbs and a great downhill section to the finish.
3Start waves
25Categories
5.75 miLap
$30Entry from
Race day info
Entry fees
- Cat 1, Cat 1/2$45
- Cat 1/2/3$40
- Cat 3$40
- Juniors$30
Day of registration, add $10. USAC One-Day License is $15.
Packet pickup
- Sunday, 7:30 AMRegistration Tent
Podium prizes
Cash PayoutPro 19-39 M/F
Cash payoutMale Cat 1/2 - 40-54
Medals and/or SwagAll Other Categories
Podium times
- 11:00 AM1st Wave Podiums
- 1:45 PM2nd Wave Podiums
- 2:45 PM3rd Wave Podiums
Race day
Wave schedule
Find your category to see your start time, laps and total distance.
Wave 1
9:30 AMFirst start
3 × 5.75 miLaps × lap distance
17.25 miWave distance
CategoryStartLapsDistance
Male Cat 2/3 - 19-39
9:30 AM
3
17.25 mi
Male Cat 2/3 - 40-54
9:31 AM
3
17.25 mi
Male Cat 2/3 - 55+
9:32 AM
2
11.5 mi
Junior Male 13-14
9:33 AM
2
11.5 mi
Clydesdale
9:34 AM
2
11.5 mi
Female Cat 1/2 19-39
9:35 AM
2
11.5 mi
Female Cat 1/2/3 40+ (Masters)
9:36 AM
2
11.5 mi
Junior Female 17-18
9:37 AM
2
11.5 mi
Junior Female 15-16
9:38 AM
2
11.5 mi
Wave 2
11:30 AMFirst start
2 × 5.75 miLaps × lap distance
11.5 miWave distance
CategoryStartLapsDistance
Male Cat 1 - Pro 19-39
11:30 AM
4
23 mi
Male Cat 1/2 - 40-54
11:31 AM
4
23 mi
Male Cat 1/2/3 - 55+
11:32 AM
4
23 mi
Junior Male 17-18
11:33 AM
2
11.5 mi
Junior Male 15-16
11:34 AM
2
11.5 mi
Singlespeed
11:35 AM
3
17.25 mi
Wave 3
1:30 PMFirst start
2 × 5.75 miLaps × lap distance
11.5 miWave distance
CategoryStartLapsDistance
Male Cat 3 - 19-39
1:30 PM
2
11.5 mi
Male Cat 3 - 40-54
1:31 PM
2
11.5 mi
Male Cat 3 - 55+
1:32 PM
2
11.5 mi
Junior Female 13-14
1:33 PM
2
11.5 mi
Junior Male 11-12
1:34 PM
2
11.5 mi
Junior Female 11-12
1:35 PM
2
11.5 mi
Junior Male 9-10
1:36 PM
1
5.75 mi
Junior Female 9-10
1:37 PM
1
5.75 mi
Female Cat 3 Open
1:38 PM
1
5.75 mi
8 Under Unisex
1:39 PM
1
5.75 mi
No category matches that search.
The course
Brown's Creek Nature Park and Bike Trail
Beginner loops up to intermediate/difficult flow and cross-country segments
- Total Ascent
- 348 ft
- Total Descent
- 374 ft
Ready to race?
Online registration closes at 6 pm the night before the race.