The Final "Count-down"

This afternoon I met Jill at the pool to do a nice swim workout. We both had a lot of steam to blow, so the workout I chose was perfect. Here's the workout:

Count-down: swim 1500m as a 500, 400, 300, 200, 100; rest 10s to 20s between each segment. Aim to go faster as the segments get shorter. Over time, aim to decrease total swim time.

With a warm-up and cool-down, here's what our results looked like:
w/u - 275M
500M - 12:15 (avg. 2:27/100M)
400M - 9:25 (avg. 2:21/100M)
300M- 6:15 (avg. 2:02/100M)
200M - 4:00 (avg 2:00/100M)
100M - 1:45
c/d - 275M

Total distance = 2050M

How did it go? I thought it went pretty well. It was hard to know how fast to start out, knowing that each set needed to get faster and faster. Our rests between sets were definitely longer than 20 seconds because we were trying to figure out the length of each set. I look forward to doing this one again, knowing that I could push myself a little bit harder, even from the beginning. I know I said it after my last workout, but Iwill wear my watch next time. It will just be that much easier to keep track of the time/splits.