One of the things I really like about the Run Less, Run Faster training programs is the ability to make changes to the schedule to work around outside forces that may require a bit of flexibility and compromise. Case in point, yesterday was supposed to be a tempo run day, but due to slippery and windy conditions I made it a cross-training day. So I did the tempo run today instead. Well, kind-of.
The back straightaway of the track is pretty shaded, especially in the winter months so there was a crust of snow and ice. This made running a tad perilous, but I was able to keep the slipping to a minimum by running flat-footed through this section. Needless to say, there was no way I'd be able to run the three 7:57 minute miles per my training plan. I could have run slower over the snow and sped up on the clear section, but that defeats the purpose of a tempo run. So I compromised by slowing my tempo throughout the whole run to go at a steady pace for the entire 6 miles.
2 miles easy @ 9:32
3 miles ST @ 7:57
1 mile easy
6 miles @ (8:58, 8:52, 8:48, 8:55, 8:55, 8:53)
Not at the required intensity, but I got the miles in. Changing one or two or even three workouts is not going to make a huge difference in the outcome of the half marathon, in my opinion. It's not worth stressing over and what is more important is doing something.