www.theguardian.com/sport/blog/2018/oct/01/parkrun-five-mlllion-runners
The Guardian article is, I think, very good. Parkrun is a movement that is about so much more than the actual running. 13 to 5,000,000 across the globe in 14 years. A genuine, inclusive event (not a race!) even in partnership with NHS now)
It's certainly changed my Saturdays - and my Christmas Day in the morning