Temp and DP 56, wind of 12 MPH from NE (weird, because it felt like it was coming from the other direction), no pollen.
Ran with Jake for the first 8 of his 20 miler, so didn't progress - just did easy into marathon effort. Definitely a bit harder to shift into marathon effort when I can't ease into it over a few miles of moderate effort.
Split as first 8 averaging 8:29 and the last 6 averaging 6:54, with a half-mile cool-down after. Marathon effort yielded a slower pace than normal, but I'm pretty sure that's some lingering fatigue from Broad Street, plus dodging puddles/mud. The effort was right, and that's the important thing.
Lots of deep puddles and some very slick muddy patches made parts of Rock Creek a bit nervewracking - had to really slow down at times to protect my ankles.
Stomach was good - a bit of cramping at the very end - breakfast was rice, hemp powder, smores and birthday cake GU, and a black cherry shot blok.
Breathing was very good - Advair 250/50 and Qvar.