Isn't it interesting how the different OneWorld airlines calculate the distances differently for what was supposed to be a OneWorld consistent award. Qantas would calculate all the individual sectors plus the "ground" component HKG-SYD. They would calculate the total distance ORD-LAX-HKG-SYD-LAX-ORD as 22,818 miles.

Also note that the shortest distance ORD to HKG is to fly AA ORD-YVR and then CX YVR-HKG. This is 850 miles shorter than ORD-LAX-HKG.