On August 7, 1903 — Reds SS Tommy Corcoran sets a major league mark when he records 14 assists in Cincinnati’s 4 – 2 regulation win over the Cardinals. Lave Cross, in 1897, racked up 15 assists in a 12-inning game.

Source:
Baseball Reference August 7
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game