5 mile tempo. I did my regular Smithfield Canyon there-and-back route. I felt great for the start, but then started hurting a bunch during my fourth and fifth miles. Splits: 4:52 (downhill) 5:42(uphill) 5:21(uphill, then downhill) 5:10(downhill. opposite of mile 2) 5:43 (uphill. opposite of mile 1). My AP was 5:21.7, and I think this is the fastest I've ever ran this route. 2 miles cool down afterward.