The Williams Pace Calculator provides two modes for split time verification:
TRACK MODE provides immediate time and distance pace verification with accurate split times from 100M through 10,000M in 400M increments. Time increments as tight as 0.2 of a second enable coaches to verify individual training paces for distances such as the 100, 200, 300, 400, 500, 600 meters. Split times are available by simply sliding the scale.
ROAD MODE provides split times for Kilometers and Miles for distances from 10,000M through the Marathon by simply setting the target pace times for each distance.
This digital version of The Williams Pace Calculator was created by David Gasper for Bob Williams.