The two men looking to become the first American to win the Race to Dubai will go out last together when the DP World Tour Championship, Dubai gets under way on Thursday.
Collin Morikawa, who sits top of the Race to Dubai Rankings in Partnership with Rolex ahead of the season finale, will play alongside second placed Billy Horschel on day one, teeing off in the afternoon at 1245.
Victory for either Morikawa or Horschel in this week's tournament at Jumeirah Golf Estates would see them clinch the Race to Dubai title, while four others could potentially claim the crown with a win but they would need other results to go their way.
Those players are Tyrrell Hatton and Min Woo Lee - who begin their first rounds together at 1235 - and Matt Fitzpatrick and Paul Casey, who go out ten minutes earlier.
In the morning, Tommy Fleetwood and Guido Migliozzi start together at 1155, while Rory McIlroy will be joined by Dean Burmester.
The pairings for Friday will be decided by the players' positions on the leaderboard at the end of Thursday's first round.