The Pittsburgh Pirates beat the Boston Braves, 4 – 3, in a game that features 22 hits – all singles. The Pirates hit 12 singles, the Braves 10.

This Day In Baseball

On May 20, 1947 — The Pittsburgh Pirates beat the Boston Braves, 4 – 3, in a game that features 22 hits – all singles. The Pirates hit 12 singles, the Braves 10.

Source:
Baseball Reference May 20