A legendary hockey milestone remains untouched half a century after it was set, as the single-game points record established decades ago still stands unchallenged. The achievement, which combined goals and assists in a way no player has replicated since, has become one of the most elusive feats in professional sports. Analysts and fans continue to debate whether modern gameplay or defensive strategies make such a performance impossible today. The record’s longevity raises questions about the evolution of the sport and what it takes to surpass historic benchmarks.

Records are made to be broken. But, 50 years after Darryl Sittler set the record for most points scored in a single game, it has yet to be matched, much…