Thanks! 10x400 done. I need a lot more practice at this pace, I ran all of today's intervals faster than called for. I feel fine after, but I suspect what I ran was closer to my "new" 5k fitness, not my current 10k fitness. A quarter of a mile is such a short distance to adjust speed if I start out too fast on a given interval, and I didn't make great adjustments in subsequent intervals based on the results of the previous. So on the one hand, it's fun to see those interval times, but on the other hand, I'm disappointed that I didn't self-regulate a little better. I think the race this weekend will be a good learning experience in terms of how I have to pace myself over the full 10k distance (there's no way I maintain a 9:20 pace for 6 miles), and hopefully that will set me up better for the second half of this plan.