Overall—and I’ll spare you the details—my football gambling track record isn’t pretty, so when I ended the 2016 regular season well in the black, I knew something was off. And after reaching out to a bookie on the West Coast, my suspicions were confirmed. No, I had not finally cracked the football gambling code. My winnings were simply part of a larger trend. “Usually around 10 percent of the guys finish up on the year,” the bookie said. “This year, it was probably 22 percent.” Local bookies aren’t the most sympathetic figures; it’s hard to feel sorry for a guy whose business model is contingent on fathers drunkenly betting the family’s Christmas fund on the Cleveland Browns. (“Sorry, sweetie, Santa must have run out of Shopkins. Maybe next year.”) Still, du…