[FullCount]

Most fastpitch scorekeepers are generally pointed to the NFCA/ATEC rules for fastpitch scoring. Using that as a reference, rather than OBR, the situation described would be a WP per 'a' below:

"1. A wild pitch is charged to the pitcher when the pitcher throws so high, wide or low that the catcher can not handle the ball with ordinary effort and at least one runner advances.
a - Any pitch in the dirt which advances a runner is deemed wild.
b - Only one wild pitch is scored regardless of the number of runners
who advance or the number of bases advanced.
c - A third strike that is not handled by the catcher because it was
wild, where the batter makes first base safely, is charged to the
pitcher as a strikeout and also as a wild pitch (KWP).
d - No wild pitch is scored if a runner was stealing on the release