40 min run then 4x100m, 200m 300m, 400m 300m, 200m

Yesterday was a rest day so I felt the need to get in some good training. I ran a 40 minute run as a warm up. I then ran 4x100m @ 17 seconds followed by 200m,300m,400m,300m,200m. I didn't have a watch to time my intervals. I figure it was around 64 second pace per quarter.