Marathon cut-off times explained

The finish limit doesn't always tell you how long you have at every point on the course. Some races also set checkpoint deadlines, rules for each wave or fixed times when roads reopen.

Before you enter, find out which clock each rule uses and what happens if you miss it. A watch that shows a time inside the advertised limit doesn't tell you which clock the organiser uses.

Find the clock behind the rule

Gun time is the time since the relevant starting signal. Chip or net time is usually the time between you passing the start and finish timing points. The organiser decides how its results and controls use those times.

A wave start adds another possibility. A control might run from your wave, the first wave, the last starter or a fixed clock time. Don't pick the reading that gives you the longest allowance.

Copy the exact wording into your race notes. If the regulations only say "six hours", look in the participant guide or ask the organiser what starts that clock.

Check intermediate controls

An intermediate control can be tighter than the finish allowance suggests.

For the 2026 race, Ljubljana's marathon rules give a six-hour overall limit and a 20 km control of two hours 45 minutes gross. Runners who miss that control are sent to the finish and recorded as marathon non-finishers.

That control is at 20 km, before halfway. If you treated it as a halfway allowance, your sums would be wrong.

For your own race, record every published control. Don't work out an average pace from the final limit alone.

Include the time before you cross the line

This example is made up. It is not the policy of a named race.

The event gun is at 09:00. You cross the start at 09:20. A 20 km checkpoint closes at 11:45, measured from the gun.

You have 145 minutes from your crossing to reach that checkpoint. Divide 145 by 20 and you get an average of 7 minutes 15 seconds per kilometre, including any stops.

Suppose you took the nominal two hours 45 minutes as your own running allowance. You would work out 8 minutes 15 seconds per kilometre. That would put you behind the checkpoint deadline.

This arithmetic helps you read the rule. It doesn't tell you the right race pace for you.

If you cross the start later than you expected, do the sum again with your actual time. In this example the published checkpoint closure stays fixed.

Read what happens behind the limit

Course support and permission to continue are separate questions. Look for the consequence the organiser states.

For example, The Big Half's 2027 event overview describes a four-hour pace policy. Runners who can't keep it up must move onto the pavement if they carry on. The event team supports them to the finish.

That policy belongs to that event. It doesn't mean another race allows the same arrangement, keeps drink stations open or gives the same result.

Check whether the rules mention a sweep vehicle, a diversion, withdrawal, roads reopening or the end of medical and refreshment services. On the day, follow the organiser's instructions.

Keep race time and service deadlines separate

Bag recovery may close at a stated time, whenever you finish. A return shuttle may leave before the wider event village closes. The expo can stay open for another distance after your race has started.

Put each of those deadlines into your weekend plan as its own entry. None of them extends your marathon time allowance.

The Budapest Marathon guide shows where to look for time-limit and bag-service information together. Follow the organiser's current information for the edition you enter.

Make a rules table before you commit

If a field is unclear, write "confirm with organiser". It is better to settle a blank before you enter than to find out during the race that a comforting assumption was wrong.

Related reading

If finishing is your main goal, read about training without a finish-time target. Use a separate Pacing plan for your own elapsed-time checkpoints.