Adrian Dater writes about the NHL for gambling.com Dater is a longtime NHL writer who spent 25 years at The Denver Post, 20 of which as the beat writer of the Colorado Avalanche. Dater, author of the best-selling hockey book "Blood Feud: Detroit Red Wings v. Colorado Avalanche, The Inside Story of Pro Sports' Best and Nastiest Rivalry of its Era", also was the lead NHL columnist with Bleacher Report from 2013-16, and was a regular contributor to Sports Illustrated from 2011-13. Dater has authored six other books.