About ravrun
ravrun builds endurance training plans around one idea: a plan should challenge you and hold you accountable, without overtraining you or getting you hurt. Tell it your race, when it is, and where your fitness is today — it lays out the whole block, week by week.
How the plan is built
Everything anchors on race day and counts backward. The block moves through base, build, peak, and taper phases; every fourth week steps back to a lighter load so you absorb the training. The long run climbs steadily from what you can handle now toward a distance-appropriate peak, and the rest of each week rotates around whichever day you like to run long — tempo work midweek, intervals once you are past base, a recovery jog after the long run, and race week winds all the way down to a shakeout and the start line. These are the tried-and-true progressive-mileage rules used by classic marathon plans, encoded as rules rather than fixed tables so any distance and duration works.
Paces
Give it a recent race result and every run gets a pace band, derived with the standard Riegel prediction formula. If your goal is faster than your current fitness predicts, the bands tighten gradually across the block, meeting your goal fitness by race week.
Honesty checks
The plan tells you when the math does not add up: a goal well beyond what your recent race predicts, a mileage ramp steep enough to risk injury (with a suggestion for how many weeks you actually need), a block too short for the distance, or a start date that has already passed you by.
Take it with you
The whole configuration lives in the URL — copy the link and the plan goes with it. The .ics download drops every workout onto your calendar as an all-day event, paces included.