Not quite.
As I understand it, an MTDG is a multi-player game where each team plays one of the Civs, and the game save is passed from team to team.
An SGOTM is a Single Player Succession Game, played by several teams in parallel. Each team starts from a separate copy of the same start file, and each team member plays a set of turns in succession. When the games are finished or retired, we compare the performances of the teams, and award laurels for the winning team. GOTM rules apply, so no replaying is allowed within a team, and only the active player is allowed to play forward from the latest team save.