That's not how the building chart works, unfortunately. The 10k lead could easily be lost if a retailer where Barbra did better than TB/LG reports their numbers and closes the large gap or surpasses them.
What I don't understand is that the three albums are supposed to be in the 120k-125k area and so far it doesn't look like the three of them will be that close.
HDD are based purely on projections from retailers. of course, Billboard uses Nielsen which has a lot more coverage of retailers than HDD. and since HDD are just based on statistical projections, always expect a small amount of marginal error in their projection
it will be very close. Less than 2000 winning margin. A lot of hard copy sales not counted. Especially for Tony and Barbara fans who are from the hard copy era.