
The Great River Challenge, Off-road Triathlon
Northfield, MA
Sat, Oct 3, 2026
In 68 days · Sat, Oct 3, 2026
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When
Saturday, October 3rd, 2026
Where
Northfield Mountain Recreation Center, 99 Millers Falls Rd., Northfield, MA, Northfield MA
Distances
About this race
Race Location
- Venue: Northfield Mountain Recreation Center
- Address: 99 Millers Falls Rd., Northfield, MA 01360
Event Overview
- Type: Off-road triathlon (paddle, run, bike)
- Safety: Safety measures on land and water, with water stations throughout the course
- Timing: Accurate segment and transition times by Fast Track Timing using timing chips
Long Course Details
- Paddle Distance: 5.5 miles on the Connecticut River
- Running Distance: 4 miles of single track trails
- Bike Distance: 7.5 miles on single track trails
Short Course Details
- Paddle Distance: 4 miles on the Connecticut River
- Running Distance: 2.5 miles of single track trails
- Bike Distance: 3.75 miles on single track trails
Kayak/Canoe/SUP Leg
- Course: 5.5 mile race on the Connecticut River
- Start: Group mass start at waterfront Pavilion
- Navigation: Wide river with buoy markers for upstream/downstream
- Assistance: Volunteers available at the dock to help with boats
Transitions
1st Transition
- Procedure: Bring your boat up the ramp; volunteers will shuttle your boat
- Next Step: Run to the transition zone across the timing pad
- Relay Teams: Special corral available for team continuity
2nd Transition
- Access: Cross over mat to find your bike or teammate
- Exit: Run your bike across exit mat to the Mountain Bike Course
Run Leg
- Distance: 4 miles (700ft of climbing)
- Path: Mixed road and trails leading to the Northfield Mountain Recreational Center
- Terrain: Packed gravel trails and single-track hiking trails
- Difficulty: Significant climbs with predominantly downhill finish
Bike Leg
- Distance: 7.5 miles (850ft of climbing)
- Trails: Single track with a mix of woods and climbs
- Topography: Includes a fast descent into the grass to the finish line
- Short Course: 3.75 miles (430ft of climbing)
Registration Note
- Deadline: Register before September for correct shirt size
For more information, visit the race page: The Great River Challenge Off-road Triathlon.
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