Marathon Pace Band Table Calculator
Build a pace band for your goal marathon or half-marathon: the exact clock time you should hit at every 5K split to finish on target.
How it works
Pace per km = goal time ÷ distance(km) · Split at distance d = pace per km × d · Pace per mile = goal time ÷ (distance ÷ 1.609344)
A pace band lists the exact clock time you should see at each distance marker to finish on your goal — the simplest way to run an even race. Dividing your target finish time by the distance gives the pace you must average; multiplying that pace by each 5K checkpoint gives the cumulative time to hit. Starting a marathon even or slightly slower than goal pace is the classic route to a strong finish; going out fast is the most common way to fade in the final 10K.
Worked example
A 4:00:00 marathon over 42.195 km needs a pace of 14,400 ÷ 42.195 = 341.3 seconds per km, or 5:41 /km (about 9:09 /mile). At that pace you should pass 5K in 28:26, 10K in 56:53, and the halfway point in about 2:00:00.
Frequently asked questions
What is a pace band?
A pace band is a strip — often worn on the wrist — listing the target clock time for each mile or kilometre so you can check whether you are on schedule at every split without doing mental maths mid-race.
Should I run even splits or negative splits?
Even pacing is the safest target and what this table shows. Many strong marathons are run as slight negative splits — a touch slower than goal pace early, faster late — but that is an advanced tactic built on the same even-pace baseline.
Does this include hills or aid stations?
No — it assumes constant effort on a flat course. On a hilly route, expect to bank time on downhills and give some back on climbs; the finish target still holds if the ups and downs balance out.
Related calculators
This calculator is for educational purposes. Double-check important results before acting on them.