Base everything on speed work and speed endurance in your planning . For me 30 was enough , and only had 1 run per week that exceeded 30 minutes on continuous runs. Long run every 10 days of 10 miles . I think you are on the correct path , hope you can go sub 1:50 soon. You will PR .[/quote]
This is a 10 year plus thread. O.P. now is either 225 pounds at 25% plus body fat or O.P. is trying qualify for Boston Marathon. O.P. is not thinking of 800m today.