FACTBOX-parkrun by numbers

4 2014 marks the 10th anniversary of parkrun, a series of free, timed weekend 5km runs that has grown into a worldwide phenomenon.

Here is the parkrun story in numbers (all figures as at Sept 26, 2014):

6.3 million completed parkruns

5.1 million completed parkruns in Britain

1.2 million global registered runners - more than half of them women.

166,492 under-18s registered for junior parkrun

72,025 individual parkruns last weekend

62,000 volunteers over 10 years of events.

44,739 separate parkrun events held to date.

26,383 people registered with Bushy Park, the original venue in Teddington, south-west London, as their home run.

6,000 volunteers on duty every weekend.

472 parkrun locations - 500 by the end of October.

470 parkruns by Darren Wood, the most by any parkrunner.

204 first-place finishes by Richard Ward (from 229 events).

198 different parkruns run by Paul Fielding.

150 average number of runners per event.

99.6 (percent)Record age grading achieved by Jane Davies when she ran 20.59 in the women's 65-69 age group in September 2014.

13.48 (13 minutes, 48 seconds) parkrun course (Bushy Park) record set by Briton Andy Baddley in 2012.

13 people who took part in the first event, which went on to become the Bushy Park Time Trial and then parkrun.

13 originals who will run in 10th anniversary event on 4.

10 countries with park runs.

Five km the distance of parkruns (2km for children's events).

Three years before second parkrun was launched, in Wimbledon.

Two countries where parkrun failed - Zimbabwe (politics) and Iceland (weather).

One - times a person has to register to take part in parkruns for ever.

0 - cost of entry.

(Compiled by Mitch Phillips, editing by Clare Lovell)