My form broke down

Sunday, 3/6/16-

Made my way to Westtown School's track at 9:30 AM for a moderate workout of 8x150.  My thought was to do the first four in 22-mid and the second four in 19-mid.  I'd take 3:00 between repeats.

Set 1: 23-mid, 22-mid, 22-mid, 22-mid
Set 2: 19.7, 19.7, 19.9, 19.5

I really got my knees out in front of me for the first two repeats of the second set.  My form broke down on the last two.

Saturday, 3/5/16-

Went to the YMCA with my wife for a moderate workout of mile/4:00 of lifting/mile/4:00 of lifting/mile.

Mile on donut track: 6:20
Lifting
Mile on treadmill: 6:05
Lifting
Mile on donut track 5:50