Since the second of my 20 parkruns in under 20 minutes in 2020 a great deal has changed. Coronavirus has appeared and parkrun is suspended until at least the end of May. I have also moved from Folkestone to Lewisham in London. At one point I had decided to abandon the challenge until next year when I would get a full 52 weeks to achieve it. That didn't feel right. It had to be 20202020 not 20202021 or 20212021. So I have decided to continue the challenge by running parkrun locations on my own or with others at least 2m apart. The first of these, and my third of the twenty, was in Catford. The parkrun takes place at Mountsfield Park, half a mile from my house. It involves three clockwise laps of an undulating course on grass, tarmac and woodchip trail. It was a clear, warm spring morning when I started next to the bandstand. The route took me 50 yards to the children's playground that has been locked up, left onto the grass around the activities and along a line of tall...