Reggie - is it ever going to stop raining?
The best part of the barn is the overhang. The horses all align themselves under the overhang to stay dry, or to stay out of the sun on hot days. Their stall doors are open, and they could go inside, but no.
The first battle in our War on Mud was staged on the runs. The runs in the photos below are side-by-side, and the photos were taken within minutes of each other. (Please note that I finished priming the runs before the big rain!)