Women's 4x100m || Jamaica vs USA — One Baton Exchange Changed Everything

Women's 4x100m || Jamaica vs USA — One Baton Exchange Changed Everything Jamaica won the U20 4x100m relay final in Lima despite facing a US team with stronger individual sprinters — the difference was exchange precision. Learn exactly what went wrong on the US final handoff and why relay races are decided in the zones, not the straights. This video dissects every exchange in the Lima final, explains the biomechanics of relay baton passing, and shows why Switzerland — without the fastest athletes in the field — walked away with bronze. We break down the US final-exchange error in detail, quantify what a mistimed departure costs in race time and track position, and explain why Jamaica's Elaine Reed was always going to close the race once the baton reached her cleanly. By the end, you will watch any 4x100 relay differently.