An athlete of astonishing grit...but there is also a bit of Everyman in Marsh. --Mark Burnett, Emmy-award-winning producer of Survivor, The Voice, Shark Tank, and more One of America's greatest living adventurers and expert without peer in human endurance. --Christopher McDougall, author of Born to Run [The] guy who has long been the ultra-runner's ultra-runner; the toughest, craziest, long-distance athlete of his generation, who for nearly three decades has let his actions do the talking. --Nick Galvin, Sydney Morning Herald ...what you have achieved...running the Badwater Quad, Badwater, Western-States, Leadville, and summiting the Seven Summits, needed that gritty dogma and stubbornness that is in you. --Ian Corless, Runultra UK The sport's [ultrarunning] figurehead in this country is Marshall Ulrich. --Florence Williams, Outside on-line Marshall's example is one that reminds us all once again that endurance really is an attitude! --Endurance Magazine