Back in 2007 and 2008, as a lazy bum I joined my friends in Melbourne's yearly fund-raising "Run for the Kids".
In 2007 I clocked 1:50:07 for 15.2km (7:14 pace or 8.28km/h).
In 2008 I clocked 1:41:54 for 14.14km (7:12 pace or 8.33km/h).
In 2014 I decided that my BMI was a bit too high for comfort and started running regularly. At first it was 2k. Then I started running 5k. Then I started training for a 10k race.
In 2015 I clocked 52:27 for 10.0km (5:14 pace or 11.4km/h).
I think I will keep running.