Hello, I'm about to start building a plan for training for the marathon in November (can't believe we are 19 weeks out already). Has anyone used any plans they like that incorporate speedwork and interval training? In the past I've used the runnersworld.com Smart Coach plan and one the NY Road Runners provide, but would welcome any new suggestions.
Also, any suggestions for speedwork? For recent races I've done 800s and then work my way to mile repeats. My goal is to get faster and I know speedwork should happen in the first half of training. Right now my PR is 4:37 (10:35 pace) and I'd love, love my stretch goal to be under 4:30. It's lofty but I think I have a shot.