12 x 400 + 90 = tough workout

Another mathematic equation (Did I ever mention that I happen to have an associates degree in mathematics and sciences?). I did my 400 repeats at the track last night. It was very hazy, hot and humid out (about 90 degrees) and it sure made for a tough workout - I was dripping in sweat. It was great. My repeats are getting more consistent too… Warm-up mile 8:52 Walked a lap 3:20 1st 400 2:07 Recover 2:01 2nd 400 1:56 Recover 2:00 3rd 400 1:56 Recover 2:00 4th 400 1:55 Recover 4:38 5th 400 1:59 Recover 2:00 6th 400 1:59 Recover 1:59 7th 400 1:58 Recover 1:59 8th 400 1:53 Recover 4:59 9th 400 2:00 Recover 2:00 10th 400 1:53 Recover 1:59 11th 400 1:57 Recover 2:02 12th 400 1:48 Cool-down 2 laps 7:23