Best achievable

Measure the result against the ceiling: the strongest outcome physically possible given your constraints, talent, and time. This contrast ignores what is typical or what you did before, and reports only the size of the remaining gap.

Measure the result against the ceiling: the strongest outcome physically possible given your constraints, talent, and time. This contrast ignores what is typical or what you did before, and reports only the size of the remaining gap.

Example

For your 5K: with your build, six hours of training a week, and two years of runway, a coach says 21 minutes is your realistic ceiling. You ran 27:40. That gap of six minutes tells you how much room is actually left.