The New York Islanders roster is bit younger, but is still among the oldest in the NHL.
Based on CapFriendly's 20-man projected rosters, the Islanders are the 5th oldest team in the league at an average age of 28.6. The roster hasn't had much turnover since the end last of the season, but adding Alexander Romanov (22) on the blue line and removing Andy Greene (39) and Zdeno Chara (45) dropped the average age by nearly a year from 29.4 at the end of last season.
The Islanders' 20-man depth chart includes Semyon Varlamov and eight forwards over 30 years of age with 37-year-old Zach Parise now the most senior. Meanwhile, on defense, all of the projected top-six are currently in their 20's with Scott Mayfield set to turn 30 in October.
Based on the list, an aging roster often means a winning team. The four teams (Washington, Pittsburgh, Tampa Bay, and St. Louis) with older rosters than the Islanders all made the post-season last year and averaged 105.5 points. Of the nine oldest teams, only the Islanders, Vegas Golden Knights, and San Jose Sharks missed the post-season.
The Washington Capitals ended last season with the oldest roster but were jumped by their Metropolitan Division rival Pittsburgh Penguins. This off-season, the Pens brought back Evgeni Malkin and Kris Letang (both 35), traded for Jeff Petry (34), and signed Jan Rutta (31).