Armed with my new Nike SDM 100 i hit Richmond Park on this fine sunny morning. By the time i got here, it was 11 am and getting hotter. The goal - run 2 laps, starting from Kingston Gate entrance, by the big oak tree(start/finish point) on the left just before where the dirt track starts. Ran the 1st lap in 52:27.29. On 2nd lap i switched on the SDM to measure the route. I haven't quite mastered this gadget yet, didn't get a time for 2nd lap but i got it measured - 7.25 miles. Has anyone else measured this route ? I see so many different quotes, some say 7.5 miles, some say 7, 7.25. Who knows ??? Anyway, i'll try again on Friday for 1 lap and measure it again, going in Dark Hill direction.