Budget Aid-Station Stops in a Race Pace Plan
Separate moving time, walking and stationary stops. Work through 10K and marathon time budgets without counting the same walk break twice.
Your elapsed clock includes stops
A finish-time target covers the time between your relevant start and the finish. Walking still covers distance. Standing still does not. Keep three quantities separate: time moving forward, stationary time, and total elapsed time. A watch that pauses during a stop can show a faster moving pace while the race clock continues to advance.
For constant moving speed, elapsed time = distance × moving pace + total stationary time. To find a required moving pace from an elapsed target, subtract the stationary budget first, then divide by distance. A budget is a planning assumption, not permission to ignore how you feel or a prediction of how crowded an aid station will be.
A 10K budget you can check mentally
Suppose you choose a 60-minute elapsed target and allow three 20-second stationary stops. The stops total 60 seconds, leaving 59 minutes for forward movement. Divide 3,540 seconds by 10 km: the required constant moving pace is 354 seconds/km, or 5:54/km. Running at exactly 6:00/km and then adding those stops would finish at 61:00.
| Moving pace | Moving time | Stationary time | Elapsed finish |
|---|---|---|---|
| 6:00/km | 1:00:00 | 0:00:00 | 1:00:00 |
| 6:00/km | 1:00:00 | 0:01:00 | 1:01:00 |
| 5:54/km | 0:59:00 | 0:01:00 | 1:00:00 |
Use the full marathon distance
For a four-hour elapsed marathon with eight 15-second stationary stops, the assumed stop budget is two minutes. The remaining 238 minutes over 42.195 km requires about 5:38.43/km while moving. With no separate stops, four-hour average pace is about 5:41.27/km. These differ by about 2.84 seconds/km. Keep the full values when calculating; a displayed whole-second pace will not reproduce the target exactly.
Do not subtract a stop budget from the target and then label the resulting moving-time split table as elapsed race splits. If the two-minute allowance occurs late, early elapsed checkpoints have little or none of that allowance. If it occurs early, later checkpoints include it all. Without stop locations, there is no single accurate elapsed schedule for every marker.
Walking is already part of a run-walk cycle
In the run-walk calculator, walk intervals already contribute distance and time. Only add seconds spent stationary as extra stops. Its default 5K takes 32:24 while moving; adding 90 stationary seconds yields 33:54 elapsed. Adding all walk seconds again would double-count six minutes. The calculator pauses the interval clock during the extra stop, so a continuously cycling watch timer may produce different later phases.
Check the event and your timing display
Look up the current participant guide for aid-station locations, time limits and any intermediate closures. Chicago’s official pace-team notes describe how groups handle drinking and explain that their pacing watches use chip time. Those are event-specific details; do not assume every group or race works the same way. A calculated finish cannot confirm eligibility for an award or that every checkpoint will remain open.
Start with realistic practised speeds and review the result as a budget. If the moving pace required by your target is unsuitable, revise the target or assumptions. The purpose is to reveal the time cost, not to encourage skipping needed stops or making a sudden catch-up effort. Use elapsed time at official markers when comparing with a race reference.