Science1990sglobalhigh confidence

The clap skate was introduced in speed skating in 1998.

Notes on verification

Multiple independent, high-quality sources (ISU, NBC, Olympedia, peer-reviewed biomechanics paper, EBSCO) confirm the clap skate's Olympic/mainstream competitive introduction in 1998, though the underlying technology was invented earlier (1980s) and saw limited use in 1996-97. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.821 clusters=7 claim_tier=notable | kind=empirical eligibility=medium]

Sources