why pace slows so dramatically from 1m to 3k to 5k.
according to this calculator and others, I should be able to break 20 for the 5k w a mile time of 6 minutes. https://www.runnersworld.com/tools/race-time-predi...
sorry it was an egocentric mystery and not a universal one!
ah. well, when was the last time you broke 20? hope I have that as a goal in 10 years.
I hope so too. Or even 18. You do have the innate speed required.