Register

Online Registration Deadline: Friday, Aug 19, 2022 at 10:00 PM CT

Total Event Registration Limit: 656

Select Your Category

Category Start Time Distance Field Limit Fee
Sold Out 100 Mile Solo Men $105 8:00 AM 100 miles $105
  • Approximately 30 miles of pavement, 50 miles of gravel, 20 miles of singletrack.
Sold Out 100 Mile Solo Women $105 8:00 AM 100 miles $105
  • Approximately 30 miles of pavement, 50 miles of gravel, 20 miles of singletrack.
Sold Out 100 Mile Solo Non-Binary $105 8:00 AM 100 miles $105
  • Approximately 30 miles of pavement, 50 miles of gravel, 20 miles of singletrack.
Sold Out 100 Mile Solo (Youth 17 & Under) FREE $0 8:00 AM 100 miles $0
  • Approximately 30 miles of pavement, 50 miles of gravel, 20 miles of singletrack.
    Category for Youth 17 & Under to register for FREE!
Sold Out 100 Mile Solo Fat Bike (3.5"+ Tire) Category $105 8:00 AM 100 miles $105
  • Fat Tire Bikes only, must have 3.5" tires or wider.
    Approximately 30 miles of pavement, 50 miles of gravel, 20 miles of singletrack.
Sold Out 100 Mile Single Speed $105 8:00 AM 100 miles $105
  • Approximately 30 miles of pavement, 50 miles of gravel, 20 miles of singletrack.
Sold Out 100 Mile Three Person Team Men $105 8:00 AM 100 miles $105
  • Teams take off (time trial style) in 1 minute increments. The team rides the route together, stopping at checkpoints to gather their "proof" and then they must finish together. $105 per Rider
Sold Out 100 Mile Three Person Team Women $105 8:00 AM 100 miles $105
  • Teams take off (time trial style) in 1 minute increments. The team rides the route together, stopping at checkpoints to gather their "proof" and then they must finish together. $105 per Rider
Sold Out 100 Mile Three Person Team Coed $105 8:00 AM 100 miles $105
  • Teams take off (time trial style) in 1 minute increments. The team rides the route together, stopping at checkpoints to gather their "proof" and then they must finish together. $105 per Rider
Sold Out 50 Mile Solo Men $105 9:30 AM 50 miles $105
  • Approximately 5 miles of pavement, 37 miles of gravel, 8 miles of singletrack.
Sold Out 50 Mile Solo Women $105 9:30 AM 50 miles $105
  • Approximately 5 miles of pavement, 37 miles of gravel, 8 miles of singletrack.
Sold Out 50 Mile Solo Non-Binary $105 9:30 AM 50 miles $105
  • Approximately 5 miles of pavement, 37 miles of gravel, 8 miles of singletrack.
Sold Out 50 Mile Solo (Youth 17 & Under) FREE $0 9:30 AM 50 miles $0
  • Approximately 5 miles of pavement, 37 miles of gravel, 8 miles of singletrack.
    Category for Youth 17 & Under to register for FREE!
Sold Out 50 Mile Solo Fat Bike (3.5"+ Tire) Category $105 9:30 AM 50 miles $105
  • Fat Tire Bikes only, must have 3.5" tires or wider.
    Approximately 5 miles of pavement, 37 miles of gravel, 8 miles of singletrack.
Sold Out 50 Mile Single Speed $105 9:30 AM 50 miles $105
  • Approximately 5 miles of pavement, 37 miles of gravel, 8 miles of singletrack.
Sold Out 50 Mile Three Person Team Men $105 9:30 AM 50 miles $105
  • Teams take off (time trial style) in 1 minute increments. The team rides the route together, stopping at checkpoints to gather their "proof" and then they must finish together. $105 per Rider
Sold Out 50 Mile Three Person Team Women $105 9:30 AM 50 miles $105
  • Teams take off (time trial style) in 1 minute increments. The team rides the route together, stopping at checkpoints to gather their "proof" and then they must finish together. $105 per Rider
Sold Out 50 Mile Three Person Team Coed $105 9:30 AM 50 miles $105
  • Teams take off (time trial style) in 1 minute increments. The team rides the route together, stopping at checkpoints to gather their "proof" and then they must finish together. $105 per Rider
Sold Out 25 Mile Intro to Gravel and B-Roads $50 10:30 AM 25 miles $50
  • Mass Start fun ride for all to enjoy. Approximately 25 miles of pavement, gravel, and b-roads.
Sold Out 25 Mile Intro to Gravel and B-Roads (Youth 17 & Under) FREE $0 10:30 AM 25 miles $0
  • Mass Start fun ride for all to enjoy. Approximately 25 miles of pavement, gravel, and b-roads.
Sold Out Friday and Saturday Night Camping FREE! $0 3:00 PM $0
  • Two nights camping on location at Wilson's Orchard. No RV camping available.
Sold Out Volunteer to help with Packet Pick Up on Friday $0 see event details $0
  • Packet pick up registration help at Big Grove Brewery on Friday.
Sold Out Volunteer yourself or a family member to help with Traffic Control $0 see event details $0
  • We'll have timeframes for people to help with traffic control on the road and for parking.
Sold Out Volunteer yourself or a family member to help manage Team Checkpoints $0 see event details $0
  • Volunteer yourself or a family member to help manage Team Checkpoints out on course. Will provide more information as we get closer.
Sold Out Volunteer to help leading up to race day $0 see event details $0
  • Volunteer opportunities may include: Help with course marking, swag bag stuffing, course prep, etc.

Location & Contact

Location address:
4823 Dingleberry Rd NE, Iowa City, IA  52240
Event Website
http://www.core4.bike
Contact Us