Anyone know much about Line Betting?

Baseball today on Mark Read's website shows Atlanta as outsiders in head-to-head betting at $2.63 versus Arizona who are favourites at $1.562. Yet Line Betting shows Atlanta $1.769 as favourites with a start of 1.5 points and Arizona the outsiders at $2.10 with a deduction of 1.5 points.

From the head-to-head prices it would be expected Arizona should win easily, but with only a 1.5 points deduction they are the outsiders. Having had no experience with Line Betting am I interpreting this correctly???