Joshua is the founder of Run It Fast®, an international running club that has members in 42 states in the USA and 18 countries across the globe. In 2015, he became the fourth runner to ever complete Slam Water which consists of running the Grand Slam of 100s (Western States 100, Vermont 100, Leadville 100, Wasatch 100) along the Badwater 135 in the same summer. He is the fastest person to have done Slam Water. He is also the only runner to complete both the Vol State 500K and Badwater 135 having successfully finished both races three times. To date, Joshua has finished 173 marathons and ultramarathons with an average distance of 52 miles.