Sometimes it’s better to be lucky than be good, and sometimes you’re good because you’re lucky. Trying to quantify an abstract concept like “luck” would seem rather difficult, but that’s why we have people like Rob Vollman in our lives. He’s the founder of Hockey Prospectus, and developed an equation that attempts to glean which NHL teams were “luckier” than others each season. From Vollman: There are five basic ways that luck can influence a team's position in the standings: injuries, shooting and save percentages (which is called PDO when added together), their power play and penalty killing percentages (which is called Special Teams Index when added together), their record in one-goal games (regulation time only), and their record in overtime and shoot-out games. So who were the teams that got lucky in 2013?