8 Mile Run With Record Mile

8 miles up at the lake, starting at the restaurant and then heading out on the spur. Turned around and headed back at the Page Extension parking lot, and decided that I felt pretty good and with the downhill of the Missouri River bridge, I figured I'd go for a record mile. Was running hard but didn't feel like I was overdoing it, ended up with a 7:30 mile - so new record by 14 seconds. After that I was a bit pooped and sorta coasted in, heart rate stayed a little high after the record mile, but it was getting warmer out too. Temp started at about 65F, was about 75F when I finished. 8 miles in 1:18:16, average pace of 9:47, average heart rate of 162 (175 for the record mile), splits of 10:13, 10:03, 10:01, 10:25, 7:30, 9:50, 10:14 and 9:57. Day off tomorrow then running 5 on Saturday and 10 on Sunday.