Dominic Smith’s walk off caps unpredictable MLB betting year

LAS VEGAS — It would be an exaggeration to call it the “Shot Heard ‘Round the Betting World,” but Dominic Smith’s three-run homer in the Mets’ season finale put an exclamation point on the most dramatic win-total decision in memory. The Westgate SuperBook closed the Mets’ win total at 85½, and oddsmakers could not have…