Summary - Total Calories

The subject says it all. Are you saving the calorie data or is the data generated when viewing a run?

If you are saving it you could total it and add it to the summary view.

Other thoughts...

Goals:
I'd like to be able to set a distance in a certain amount of time. Such as 5 miles in 30 minutes or 1 mile under 6 minutes. Then if a run meets that requirement the goal is checked off as completed.

Graphs:
I dig that the week starts on a Monday. It's the day I start so it's convenient. I saw you already plan on excluding non-run days from the graphs.

Runs:
Weight and water tracking: An optional entry for weight before and after a run would allow the user to track water usage in a run. With enough weight and water data the application could recommend X water per mile and also track changes in weight on the graphs.

Incline %: This would add some complications to the calorie calculations if you decided to sum them.

I'm very impressed with this little app. I've been tracking my runs with a google spreadsheet for about a year now using a few simple equations to figure all my data. This app makes things much more convenient.