(Oops) Tempo Run

What was supposed to be a relatively easy 5-mile trail run with hills turned into a fairly quick tempo run. The time was 38:23 (7:40 pace), which was about 30 seconds per mile faster than I wanted to be today. On the last 1-mile loop, a high-school girl started running (looked like she could be a cross-country runner) at pretty much the same pace I was. I gradually caught up with her, just running my own pace. She glanced over at me. I apologized (didn't want to be a 42 yr old guy creeping out this poor girl) and picked up the pace all the way up the hill to the end. I was pretty winded when I finished. In hindsight, I should have backed off my pace as soon as I saw her in front of me, but I guess the ego got in the way and took over. So now my week will have to be re-shuffled. I had intended running an interval workout tomorrow. Not gonna happen now. It'll be an easy run, with possibly a scaled back interval workout on Wednesday, bike on Thursday, short run on Friday and medium-long run on Saturday. Hey, stop yawning!