Ashcraft and the Pirates won't face the Brewers on Friday, as the game was postponed due to rain.
The Pirates and Brewers will play a doubleheader Saturday to make up Friday's contest, and Ashcraft will toe the slab during the earlier game, per Danny Demilio of PittsburghBaseballNow.com. The 26-year-old righty has collected a win in each of his last four starts while posting a 3.04 ERA, 1.10 WHIP and 32:6 K:BB across 23.2 innings.