Where does pace need to vary?
At Boston, protect your legs early and accept changes on the Newton climbs. In New York, keep bridge effort controlled instead of trying to recover every uphill second on the descent.
Are the entry standards interchangeable?
No. The B.A.A. and NYRR publish different standards and entry pathways. A Boston-eligible result does not automatically establish a New York time-qualifier place.
What stays the same?
Current-fitness training, a practiced fueling plan and a start that leaves room to race late. Course knowledge helps execute that preparation; it does not replace it.
Where does this guidance come from?
Primary source and methodology. Use the calculator’s method notes for assumptions. Coaching decisions still require your context.
Use the related calculator