DateExpected
Mid June 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Zinn Cycles shop, 1655 Cannon Cir., Suite 100, Louisville, Colorado
Louisville, Boulder County
Countdown
June
The road option at Zinn Fondo: a flat-ish, friendly 50 km loop that follows the Tour de Victory course. Easy to say yes to.
Key facts
01No feed stations, so bring your own food and drink
02E-bikes are welcome
03An alternative Boulder start is offered
Create a free training plan for the Zinn Fondo 50 km
7-day free trial, no card required
The course
The route
Louisville
Distance50km
Total climb393m
StartElevation
0 kmDrag map to rotate47.3 km
Weather
Mid-June, Louisville
29°CTypical high
12°CTypical low
2°CColdest in 20 years
28%Days with rain
Highs around 29°C and lows around 12°C, but it has dropped to 2°C. Rain on 28% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserZinn Cycles, hosted by Lennard Zinn
Websiteblog.zinn.bike
Instagram@zinncycles
Running since1988
Training
Training for the Zinn Fondo 50 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 Zinn Fondo 50 km plan targets
Typical sessions
50 km with 393 m of climbing
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 Zinn Fondo 50 km plan.
7-day free trial, no card required.
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