Women's 400m | Dominican Republic vs USA — Two Styles of Dominance

Two women's 400-meter races, two completely different styles of winning — and one number most viewers completely missed. Learn exactly how Marileidy Paulino's mechanical efficiency separated her from a world-class field, and why Sydney McLaughlin-Levrone's flat-400 performance is the most revealing data point about her true ceiling. Grand Slam Track produced two elite races in one season — Paulino in Philadelphia, McLaughlin-Levrone in Kingston — with split-time analysis, fatigue mechanics, and a breakdown of what actually decides a 400-meter race. Chapters: 0:00 — The number that changes everything 0:45 — Philadelphia: Paulino vs the deepest field of the season 3:10 — The 300m shift and what the splits reveal 5:30 — Final 100m mechanics: why Paulino pulls away 7:20 — Kingston: McLaughlin-Levrone's double and what it means 10:00 — Two styles, two surpluses, one conclusion