When the round time expires in a sanctioned event, the current turn plus 5 additional turns are completed before a game still in progress is a draw.
Emrakul, the Promised End has the text:
When you cast Emrakul, you gain control of target opponent during that player's next turn. After that turn, that player takes an extra turn.
If Emrakul, the Promised End was cast in the additional turns, how would the controlled turn and extra turn be counted?
Example for clarity: Player A casts Emrakul, the Promised End targeting Player B on turn 1 in additional turns. Is turn 2 Player B being controlled and turn 3 Player B's extra turn?