Around -20 C. today, so there was no friggin' way I was going to run outside. So I hit the "dreadmill".
I set the "incline" to 4, which makes it a bit tougher to run. I set the pace to 5 mph. From 2 minutes into the run, it felt tough. And it continued to feel tough. At 58 minutes, I put the pace up to 5.5 mph and it felt tougher, but I kept pushing.
I watched the 2010 World Equestrian Games Eventing (XC and Stadium) and it went well having something to watch.
So, I got it in. Not pretty, but did it.