Nope. But it will count toward your awesomeness. If you’re in the zone, there’s no need to stop at the minimum mileage. We won’t apply those extra miles to your next run, however, so it’s for the glory only.
If you’re feeling awesome and want to take a second run or walk in a day, go for it! Just remember we can only count one run per day and it won’t be applied to your total for the week.