Fastest sport stacking individual cycle (WSSA, female)

The fastest sport stacking individual cycle (female), according to the World Sport Stacking Association (WSSA), is 4.996 seconds, achieved by Si Eun Kim (South Korea) at the WSSA 2025 Speed Stacks World Championship Challenge in Daejeon, Korea, on 18 January 2025.

Kim surpassed her previous mark of 5.005 seconds, which she set in Anseong, Gyeonggi-do, Korea, on 6 January 2024.

She also holds the female records for the individual 3-6-3 (1.872 seconds) and 3-3-3 (1.546 seconds) stacks.

The World Sport Stacking Association reset their records on 1 September 2021, following the introduction of the new G5 timer. Previous records became “legacy records” and a new records database was started.