1st day with new Garmin GPS watch

This was my first day with my new Garmin GPS watch.  I really like it.  My workout was 7 min. warm-up followed by 4:00 min. race pace x 3 with 2 minutes jogging rest in between and finishing with a 5 minute cool down.  Total was 28:01 min (slow on the stop button), and I covered 2.93 miles (9:34 ppm).  I had the wind behind me for 2/3rds of the run.  My race pace fluctuated between 8:45 ppm and 9:15 ppm, which is probably too fast.  The jogging in between averaged about 10:15 ppm.  I have to drop 10 seconds per mile to beat last year's Asparagus Run time.