You can look this stuff up online. I used to reckon (based on SERIOUS research) to lose 4 oz on a 3 mile fast walk. This was backed up by actual experience). Based on the 3X principle, that would mean that a 2 hour run (at real speed) ought to lose you 12 ounces. Only serious elite athletes can run for 2 hours at speed.)
I don't understand your 1-10 scale.