Updated with the results of August 15th.
And yes, Duong, just like MC is displayed with the Masters because of the tournament's point limit. Monte Carlo is a Masters ATP 1000, even if it's part of the 500 commitment. The Olympics is somewhere between 500 and 1000 point-wise, but it's not a Masters. Davis Cup is a 500 because the maximum number of points a player can achieve all year long in the DC is 625.