Pace bands for UK road running

In UK running, pace is commonly quoted in minutes per mile for road races , even though distances are marked in kilometres on most courses. The London Marathon, for instance, displays mile markers, and runners often think in min/mile. This generator supports both min/km and min/mile so you can print a band that matches the markers on your specific course.

UK race distances and pace targets

Race	Distance	Sub-4h pace	Sub-2h pace (half)
parkrun	5 km	,	,
10K	10 km	,	,
Great North Run / half marathon	21.0975 km	,	5:41/km = 9:09/mile
London Marathon / full marathon	42.195 km	5:41/km = 9:09/mile	,

Chip time vs gun time

UK race results distinguish between gun time (from the official start signal) and chip time (from when you cross the start mat). Mass-participation events like the London Marathon can have a gap of several minutes between the two. Your pace band should be based on gun time if you are chasing a Good For Age qualifying time, since UK Athletics uses gun time for GFA standards. For personal goals, chip time is what most runners track.

Pacing strategies

UK Athletics and most elite coaches recommend a slight negative split , running the second half 1-3% faster than the first. For London, a common approach for sub-4h runners is a 2:03/1:57 split rather than an even 2:00/2:00. The pace band lets you encode this asymmetry km by km so you have a precise target at every marker.

Limits of pace bands

Pace bands assume flat conditions and no stops. UK races are often affected by wind and rain; factor in 5-15 seconds per km on a blustery day. Use the Run Split Planner if you want to build in course-profile adjustments per segment. Consult a qualified coach before attempting a significant personal best attempt.