With 13 days until the Boston Marathon, Boulder based 2:28 marathoner Nell Rojas is beginning to freshen up with a workout of 1 mile, 8 sets of (400m, 200m), 1 mile.

The workout takes place just 3 days after Nell won the Cooper River Bridge Run 10km in a new best time of 31:52.

Nell is joined by 71min half marathoner Molly Grabill and accompanied by coach Ric Rojas for the workout.

Sweat Elite Instagram:   / sweatelite  

Nell Rojas Instagram:   / nell_rojas_running  

Molly Grabill Instagram:   / mollyjgrabill  

Videographer (Matt Fox) Instagram:   / mattinglisfox  

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