Kris Rugloski not only beat the female record for most miles completed at a World’s Toughest Mudder, but she’s also the first female to complete 100 miles at the event. The previous female record was 90 miles. Kris is also the Female World Champion in Hyrox. Hyrox is a hybrid fitness sport otherwise known as "The World Series of Fitness". Last but not least, Kris recently became the Youngest Female to complete the Grand Slam of 100-mile Ultra Races.