Cliff Battles has the highest 100 * rush attempts + passing touchdowns per passing attempt + passing touchdowns + rush attempts + passing touchdowns in a season, with 21,816 in 1937.

most 100* rush + td / pass + td plus rush + td in a season by a player 20 pass + td
Interpreted as:
most 100* rush + passing td / pass + passing td plus rush + passing td in a season by a player 20 or more pass + passing td

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