DateExpected
Late August 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Thunder Bay Junior High School, Alpena, Michigan
Alpena Township, Alpena County
Countdown
August
The middle-distance choice: 65 miles of gravel in one loop, a proper day out without going the full century. A mid-sized field of 60 and an 8:00 start.
Key facts
01Clydesdale category needs 220 lb or more; Athena needs 165 lb or more
02Results split by bike type, racing class and team size
Create a free training plan for the Thunder Bay Thriller 105 km
7-day free trial, no card required
The course
The route
Alpena Township
Distance105km
StartElevation
0 kmDrag map to rotate98.9 km
Weather
Late-August, Alpena Township
24°CTypical high
14°CTypical low
7°CColdest in 20 years
39%Days with rain
Highs around 24°C and lows around 14°C, but it has dropped to 7°C. Rain on 39% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
Training
Training for the Thunder Bay Thriller 105 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Thunder Bay Thriller 105 km plan targets
Typical sessions
105 km
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Group rides for drafting and bunch-riding skills
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Thunder Bay Thriller 105 km plan.
7-day free trial, no card required.
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