A generous finish cutoff can hide demanding intermediate deadlines. Successful cutoff planning starts with the official table and turns it into a moving schedule that includes terrain, aid-station time, darkness, and expected late-race slowdown. Average pace alone is not enough.
Copy every official deadline
Record each cutoff, whether it applies on arrival or departure, and the distance between timed locations. Confirm the race uses elapsed time, clock time, or another convention. Rules can change, so use the current race manual rather than an old report or spreadsheet.
Estimate segments instead of one average pace
Divide the course at aid stations and major terrain changes. Give climbs, technical ground, heat, and night sections their own realistic estimates. An overall 18-minute-mile target tells you little when one segment may average 13 minutes and another 28.
Budget stationary time explicitly
Five minutes at ten aid stations is nearly an hour. Longer shoe, foot-care, clothing, and crew stops accumulate quickly. Set a purpose for each major stop and distinguish quick refills from planned reset points.
Track margin, not just position
At each timed point, know how many minutes remain before the cutoff and whether the next segment is likely faster or slower. A one-hour cushion before the hardest climb may be less comfortable than a 30-minute cushion before smooth downhill trail.
Create decision points
Identify locations where pace, stomach, feet, weather, or lighting should trigger a change. The plan might shorten the next stop, add calories, change shoes, or switch layers. Do not wait until the cutoff marshal is the first person to tell you the schedule is failing.
The practical takeaway
A cutoff plan is a segment plan plus a stop-time budget. Recalculate margin throughout the race instead of relying on one average pace.