Answered January 12th, 2020

George Harper has the highest 2 * extra-base hits * sacrifice hits in a game, with 12 against the Brooklyn Robins on June 30, 1925.

most 2*xbh*sh/(xbh sh) in a game
Interpreted as:
most 2*xbh*sh/(xbh sh) by a player in a regular-season game

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