Imagine racing across 400-foot high sand dunes in a roasting 122 F, or competing on snow with gale-force winds, lows at -4 F, and penguins along your path, all while carrying everything you need on your back for a grueling 250 km (155 miles). Professional ultra-runner Jax Mariash, aka Wonder Woman Jax, has won self-supported ultras on five continents. In 2016, she ran the 4 Deserts Race Series, winning in South America, Antarctica, Africa, and Asia, where she won the Gobi March. In North America in 2018, she became the first American to win the Grand to Grand Ultra. Next up for this resident of Hood River, Oregon: Australia this May.