Are you sure you weren't running for more than 50mins - - - the loop I did was 7.2km. I guess yours was actually shorter though so could be correct.
If there is a map involved, it is orienteering, not running.
...it might have been a google map....
John are you suggesting I can't run faster than 7min/km??
There is plenty of O in Google.
Check my log on Sunday July 20th for evidence-based proof...