UK race comparison & decision engine

The UK’s most complete race data

Every UK marathon, half and 10k compared on gradient, real finisher times, conditions and true cost — with the methodology shown.

83Events138Race entities6Distances4Ranked tables

Freshest data

Marathons — the hero distance

The marathon is where the comparison matters most: gradient, finisher times and true cost decide your race. A few of our top-rated UK marathons:

Compare all UK marathons →

Cheapest UK race entries

Sorted by the current entry fee published by the organiser — the cheapest way to a UK start line right now, across every distance.

UK races ranked by cheapest entry fee
#RaceDistanceRegionEntry fee
1Vitality Bournemouth Bay Run5KSouth West£12
2Run Leicester10KEast Midlands£21
3Vitality Bournemouth Bay Run10KSouth West£24
4Belfast City Marathon10KNorthern Ireland£25
5Bournemouth Marathon Festival5KSouth West£26
6Two Tunnels Railway Races5KSouth West£26
7Newport Wales Marathon10KWales£28
8Brass Monkey Half MarathonHalf MarathonYorkshire£28
9Tunbridge Wells Half MarathonHalf MarathonSouth East£29
10Surrey Half Marathon5KSouth East£29

Entry fees are organiser-published and carry an as-of date on each race page.

Compare by distance

Marathons

19 race entities compared

Half Marathons

50 race entities compared

10Ks

33 race entities compared

5Ks

11 race entities compared

Ultramarathons

18 race entities compared

Relays

7 race entities compared

Ranked the way runners decide

Best value

Entry fee and true cost against everything you get.

Decision tools

PB predictor

Estimate your finish time on any course from your current form.

True-cost calculator

Entry fee plus modelled travel and accommodation from your region.

Find my race

Answer a few questions and we shortlist the races that fit.

Why our numbers are different

Every figure is derived through one fixed, published methodology and carries its source and an as-of date. Course gradient is normalised so a dense GPS track and a sparse one give the same answer; finisher data is aggregate-only; travel and accommodation costs are labelled estimates.

Read exactly how we calculate everything →