Runners aiming for a 3:00 marathon (6:52 mile-pace) should shoot for easy days between 7:48 and 8:36.
Runners looking to hit a 3:30 time (8:01 mile-pace) should strive for easy days between 9:02 and 9:56, and
4-hour marathoners (9:09 mile-pace) should shoot to keep easy days between 10:11- and 11:11-minute miles.
As demonstrated by the data, to go fast, you have to learn to run slow.
這個慢輕鬆跑的range比較realistic