Yesterday was a pace run - 5 miles with 3 at 9:47. I didn't think I'd be motivated to do it on the treadmill, so I did it immediately after work from the parking lot. I had daylight for the first mile or so and then not so much! I also didn't have my watch display set up optimally and I was running without my glasses (as usual). I realized as I entered the first pace mile that I had no idea what I was doing in terms of speed. I ended up just guessing my pace based on RPE and this morning when I uploaded the data, I found out that I did 9:48, 9:49 and 9:44. Woohoo! I don't think I could have done any better even if I had a huge pace clock following me. ;-)