New York Islanders vs Utah Mammoth Head-to-Head

Islanders built their historical edge pre-2005, winning 28 of 48 decided meetings (58%) (plus 12 ties). In the shootout era they are 18-13 against each other (58% Islanders). 12 historical ties live in the all-time ledger, all predating the 2005 shootout rule. Games average a 2.5-goal margin, with the largest blowout coming via Mammoth's 7-goal win. Across the last 20 decided meetings Islanders hold a 12-8 edge, suggesting the modern balance leans their way. The 1980s produced the deepest sample with 32 recorded meetings, more than any other decade in the series. Their first recorded meeting fell in 1979, so the rivalry has spanned 47 seasons of NHL history. Most recent result: Mammoth won 7-2 on Jan 1, 2026. Through the 2020s Islanders have led 6-5 between the teams.