Justin Grunewald spends two-thirds of his time in Boulder, Colorado and one-third of his time in Minneapolis, Minnesota. Justin is a trail runner and physician who considers himself a beer expert.
Downhill Mile- 3:50
Kalalau trail FKT 22 miles - 3:43:58
150k Way Too Cool- 3:21:16
It’s ok to struggle, it’s not ok to give up.
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