Another scenario - Murray is number 1 after WTF but loses the YE number 1

[timnz]

If Murray loses the semi final and Djokovic wins his, but loses the final.

Murray 405 points ahead going into wtf, in above scierions wins 600 points in round robin 405+600=1005

Djokovic losing finalist but unbeaten in round robin = 1000 points

Murray 1005 > Djokovic 1000 therefore number 1 after WTF - by just 5 points!

BUT ON NOV 28 Murray loses 275 points from last years davis cup campaign 1005 - 275 = 730

Therefore Djokovic would be YE number 1

 

[jm1980]

It's all leading up to a Murrovic showdown in the final. Winner would take #1 immediately and retain it until at least the AO next year

 

[timnz]

It's all leading up to a Murrovic showdown in the final. Winner would take #1 immediately and retain it until at least the AO next year

Likely but not certain