Determine your heart rates based on your age (22-age). You’ll want 60% to 70% of that for zone 2. If you know your max heart rate is higher (or lower) than the calculated rate, adjust accordingly. If you look at your workout details, you should see your zones listed there, and the heart rate for each zone. I don’t think Frontier allows you to…Read More

RunKeeper had a subscription that has a personalized marathon training plan.

Also vermin has run coaching plans for any length of run. I’m using one now connected to my watch.