total running time 52:52. Plan was a 3 mile tempo run at 8:30 pace after 2 miles warm-up adn then 1 mile cool down. splits 9:31, 9:01 (3 striders of 0.05 miles each), 8:25, 8:25, 8:26 (was running almost all out on this one), 9:04 (last 0.2 miles hard). ave HR 129. I stopped briefly twice in the last mile, once right after finishing mile 5 and then again to get some water. I am pleased with this run. I think I am figuring our my major soreness. I need much more core training adn stertching(yoga) than I did when Iw as younger.