Greg Halvorsen

Gravel Grinder 100

December 4, 2026 Boulder, CO

Coach by day, athlete by dawn. Obsessed with negative splits.

About this campaign

Sponsoring Greg helps cover entry, travel and gear for Gravel Grinder 100. Every sponsor gets their name on this page.

Why I'm doing this

My community carried me through a hard year. This race is how I give it back.

My story

Three years ago I couldn't finish a mile without stopping. I signed up anyway, found a training group, and learned that the hardest part is lacing up. This season I'm chasing my biggest goal yet, and I'd love my sponsors' names on the journey.

Where the money goes

Registration$225
Travel$200
Equipment$90

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10 people are standing behind Greg.