Continuing with the calculator theme...
I started building workouts with 100 yard pacing and I'd previously used an online calculator to determine the pace for each athlete. To my surprise, it was no longer available so I built my own. Problem solved. :)
It's a simple calculation -- I want to input a specific distance in miles, enter a predicted time in minutes, and I want to calculate the 100 yard pace in order to create specific workouts.
An example: 10x 100 @ [race pace] on 15s rest