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Western States Endurance Run Qualifying Race
The Craze Ultra will be reinstated as a qualifying race for the
Western States Endurance Run 100 Miles  
when we resume our physical event in the future.  
As the 100 Miles Challenge by Craze Ultra is a virtual event, it will not be listed as a qualifying event.

Congratulations to all Nuts of Craze Ultra 2019
Click HERE to view Results / E-Cert


CRAZE ULTRA (9th edition)
Date: To Be Confirmed
Start: From 7am Saturday
Finish: By 7am Sunday
Time Limit: up to 24hrs (cutoff by 7am on Sunday)
Venue: MacRitchie Reservoir, Singapore
Distances: 100km/72km/55km/45km/Mini Nuts 27km