2 mile run

Decided on an easy day - just wanted each 1/2 mile in a 2 mile run to be faster than the last.
I ran my first 1/2 mile in 4:00 flat. The next was dropped down to 3:50 for 7:50 first mile. The next half was 3:45 - still speeding up. I ended up finishing at 15:25 - making the last 1/2 3:40. The pacing worked - so next time I'll just start faster and do the same thing.