Have you ever completed a marathon 26.2 mile run?

[Dark_Lord_2008]

My time goals are:
5km from 22 mins down to 19 minutes.
10km from 45 minutes down to 40 minutes.
HM(21.1km/13.1m) from 101 minutes down to 90 minutes.
M(42.2km/26.2m) from 270 minutes down to 220 minutes.

I am 84kg/185 pounds and 5'10". Losing 5 to 10kg/11 to 22 pounds as well as more training and improved fitness should help me achieve my fitness goals.