5k. The time was shit, but it was the same course, so I know the speedwork is doing something because it was 2 minutes faster. I'm doing 40 minutes warmup on an elliptical and 6 half-mile repeats on a treadmill. I started a number of weeks ago at 9 mph w/60 seconds between and now I'm at 9.7 mph. I have a flat mile this weekend.