17 players are tied for the most interception touchdowns in a Championship game, scoring 1 touchdown. The first three are Patrick Robinson on January 21, 2018, Luke Kuechly on January 24, 2016 and B.J. Raji on January 23, 2011.

most interceptions returned for touchdowns in a conference championships game
Interpreted as:
most interceptions returned for touchdowns by a player in a conference championships game

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