Speed Is Just Efficiency at a New Pace

One Rep Left? That's Actually the Sweet Spot #speedwork #running

Add This to Your Strings and Hear the Difference

The Simple Rule for Running Interval Progression #running

Can the graph of a continuous function in a finite closed interval be infinite in length!? Yes #math

Git Gud at Ear Training

One Sample, A Whole Distribution

Runners Skip This Interval Prep (They Shouldn't) #running #training

Missing Intervals = Stuck at the Same Pace #running