We played most of the playoff teams before 8/20 and our hot streak. Since 8/20, we went 2-1 @KCR and 2-1 v. ATL.
Also, that lousy record v. playoff teams is closely related to the 7/8 - 8/7 8-18 stretch. We went 1 -11 v playoff teams during that time (0-3 LAD, 1-3 Pitt, 0-2 @ Det, 0-3 ATL). Pull out that stretch, and it is not good, 13-18, but not fatal.