28Nov
100 kilometers
Cycling
- Distance
- 100K
- Countdown
- 31 days
- Entry fee
- $50.00
IRON BUTT 100
Encino,
California,
United States
31 days left
www.bikereg.com
Date
28 Nov, 2026
Races
3 distances
Entry fee
$50.00
Runner rating
Be the first to rate
Website
Official website
IRON BUTT 100
About the event
IRON BUTT 100 challenges endurance athletes on November 28, 2026, in Encino with three distinct distance options: the grueling 100 kilometers (100K), a marathon of 100 laps, and an epic 100 miles (160.9K). This event pushes participants to their limits across varied terrain, offering a true test for seasoned competitors.
Races offered
28Nov
100 laps
Cycling
- Distance
- 100 laps
- Countdown
- 31 days
- Entry fee
- $50.00
28Nov
100 miles
Cycling
- Distance
- 160.9K
- Countdown
- 31 days
- Entry fee
- $50.00
Weather history
3-year monthly averages for November in Encino.
Temperature10.0° / 22.1°
Feels like7.1° / 19.6°
Sunshine hours8h 46m
Rainfall2.3 mm
Snowfall—
Wind6.9 km/h (Light breeze)
Humidity55.7%
Max UV indexLow (2.0)
Sweat lossModerate
Course conditionsFirm and slightly soft
Sunrise07:27
Sunset17:50
About Encino
Learn more about the host city, Encino.
Encino is a neighborhood in the San Fernando Valley region of Los Angeles, California.
Read moreHotels & places to stay
Things to do nearby
Tours and activities near Encino, powered by Viator.
Runner reviews
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