With 4 weeks until the USA Olympic Track and Field Trials, Sara Hall executed one of her best ever threshold runs in Gunnison, Colorado (7700ft / 2350m elevation).

Coach and Husband Ryan Hall (fastest American Marathoner in history) commentates the workout from the bike and shares some tips along the way.

Sweat Elite Instagram:   / sweatelite  

Sara Hall Instagram:   / sarahall3  

Ryan Hall Instagram:   / ryanhall3  

Videographer (Matt Fox) Instagram:   / mattinglisfox  

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