Today, I decided to run hard, a tempo pace, not quite race pace. My goal was to run around 9 minutes per mile the whole way.

While I didn't quite make that goal, I nailed it!
Splits
Mile 1: 9:05
Mile 2: 9:13
Mile 3: 9:42
Mile 4: 9:59
Mile 5: 10:08
5 miles (walked .24 miles), 48:08, 9:37/mi, average active HR: 158, 574 calories burned