On Saturday, I was using the DD probables from the prior race to project odds for the BC dirt races. I noticed that the discrepancy between my projected odds and the off odds seemed larger than I'm used to. When I was playing around with projecting odds during the Saratoga meet, the median discrepancy was around 10%. On Saturday, it was almost 20%.

Is that something you have noticed on big days? I'm wondering if it might be a function of pool size, increased casual money, or field size.