Yes, I could tell from the raw numbers (which were included in the tweet) that ROI was based on $1. The point of the tweet was that, with a good rebate, you\'d be in good shape. By way of comparison, the Meadow book, using a much larger sample, pegged the ROI from betting on favorites at $0.83. Of course, most jurisdictions have larger WPS takeouts than NYRA and Del Mar.