Trail run at 3:00 when it was too hot. It's tough getting-in a.m. runs with Jack and work, but these afternoon runs, especially the harder ones, are a little gnarly in the heat.
Avg. HR 155, but that's only half the story. My HR went too high with the heat, with some climbing (1000ft.) and some speed. My easy days are easy and my hard days are hard. Isn't such specificity the key? Right now, I'm pretty frustrated with the whole HR discussion. I've been pretty disciplined for months now (but I can bet not quite disciplined enough). Now I'm integrating some speed, and that has limits, too. Errrr.
Tomorrow, it's a long MAF/Aet run (like I'm going to confession).