Ive decided to give up sprinting and try training for the 800 right now I am working on a base of mileage then get into speed work. I have some prior knowledge with distance I have run 5k’s in the past with a pr of 17:00. Needless to say I am better with speed work. I just ran twenty miles last week and I am trying to get 25 this week. I would like to build up to 35 miles before I start speed work. I need some tips on periodization and sample workout plans. For example how would I work on speed for an 800? What about VO2 max work? I think I can make this work it would be something new which really need in my life right now.