FKT

In August 2025, Jazmine Lowther set both the supported and unsupported Fastest Known Time (FKT) for women on the Grand Teton — the tallest peak in the Teton Range of Wyoming, which towers at 13,776 feet. Supported, she ran the route in 3h51m12s. Then, one week later (and just hours before a 12pm flight out of Jackson, Wyoming), she set the unsupported record in 4h6m58s.