Didn't feel horrible. Hammies a little sore. Ab hurt off and on but really felt ok. Base 6.3 for first mile, 6.4 for the next 4.5 miles and 6.5 for the rest. Surges every .1 before every .5 at a 7.0. Surges the last 3 mins every 20 mins. Increased speed on the last mile .1 every 1/4 mile.