RACE INFO ​ Dusk to Dawn Relay + Ultra ​ Relay race start: Sept 1, 2023 @ 8:08pm MT Relay race end: Sept 2, 2023 @ 7:03am MT ​ The course is a beautiful, flat 2-mile loop on the Bonneville Salt Flats - the fastest speedway on earth - on which you (Ultra) or your relay team of 4, 6, or...