I met up with Ken and Ben at the pond for a builder. 3-mile warmup with a few strides and then into the workout. I felt good cardio-wise, fitness-wise, but my stomach was upset. I had to visit a quick secret bathroom in mile two, but after that got back into rhythm and really had a pretty good workout.
Splits: 507, 512, 508, 513, 514, 506, 511, and 507 for a 5:10.3/mile avg pace. This is my second best builder ever, but just barely (I've had two other higher 5:10 builders in fall of 2013)