Santa's CHRISTMAS EXPLOSION Run
- Running
- 10k
- 5k
- 2 km
- 10k
- 5k
Springfield, Ohio, United States
Calvins Challenge 2026
- Cycling
- 86,400 km
- 86,400 km
- 43,200 km
- 43,200 km
- 21,600 km
- 21,600 km
- 16,093 km
- 16,093 km
- 86,400 km
- 43,200 km
- 21,600 km
- 16,093 km
1675 E Possum Rd, Springfield, OH 45502
UltraCycling Events
About the Event
Calvins Challenge 2026
Dates: Sat May 16 - Sun May 17, 2026
Location: Springfield, OH
Organizer: UltraCycling Events
Description: Road Race Event
Discounted Fee Deadline: Monday, Mar 30, 2026 at 11:59 PM ET
- 24-Hour Non-Drafting (RAAM Qualifier)
- 24-Hour Drafting Allowed
- 12-Hour Non-Drafting - WUCA 12-hour Championship
- 12-Hour Drafting Allowed
- 6-Hour Non-Drafting - WUCA 6-hour Championship
- 6-Hour Drafting Allowed
- 100-Mile Non-Drafting
- 100-Mile Drafting Allowed
- 24-Hour Drafting Allowed Team (2-to-8)
- 12-Hour Drafting Allowed Team (2-to-8)
- 6-Hour Drafting Allowed Team (2-to-8)
- 100-Mile Drafting Allowed Team (2-to-8)
Online Registration Deadline: Thursday, May 14, 2026 at 11:59 PM ET
How to get there
Courses
Tickets
This event is not sold through Apuama. Check prices and availability directly on the organizer's website.
| 24-Hour Non-Drafting (RAAM Qualifier) | $150.00 | View |
| 24-Hour Drafting Allowed | $150.00 | View |
| 12-Hour Non-Drafting - WUCA 12-hour Championship | $150.00 | View |
| 12-Hour Drafting Allowed | $150.00 | View |
| 6-Hour Non-Drafting - WUCA 6-hour Championship | $150.00 | View |
| 6-Hour Drafting Allowed | $150.00 | View |
| 100-Mile Non-Drafting | $100.00 | View |
| 100-Mile Drafting Allowed | $100.00 | View |
| 24-Hour Drafting Allowed Team (2-to-8) | $150.00 | View |
| 12-Hour Drafting Allowed Team (2-to-8) | $150.00 | View |
| 6-Hour Drafting Allowed Team (2-to-8) | $150.00 | View |
| 100-Mile Drafting Allowed Team (2-to-8) | $100.00 | View |
| Sponsor or Donation | $0.00 | View |
| One Day WUCA membership | $10.00 | View |
| Custom Calvins Jersey | $100.00 | View |
| Custom 2025 Calvins Jersey | $100.00 | View |
| Custom 2025 Calvins t-shirt for You and Crew Members | $25.00 | View |
| Custom 2025 Calvins Challenge Medallion | $20.00 | View |
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