Thus far, for the first season in many years it has not been profitable to blindly bet MLB home underdogs. The average line was mostly stable for the last 5 years around +128 to +130 and this year has been averaging +122. Does this have anything to do with the significantly lower totals this year? Overall home teams are down to an an average of -127 but thats not as significant a change as the home underdog lines.
The only explantation seems to be the market has come around. It seems unusual for such a sharp, quick turnaround in betting patterns that were long established but I guess it must be the case. And please don't just say the books adjusted for this exact reason. That is ludicrous as it would've been done years ago as this edge has been out there for years