A positive tTG with a negative gliadin can mean a number of things: You got a false positive tTG. (Possibly due to some other autoimmune disorder) You got a false negative gliadin. (This is actually much more likely than with the tTG test. Reported sensitivity of gliadin test is in the 65-75% range, meaning that roughly 1/4-1/3 will be false negative)
Definition of ultra. : going beyond others or beyond due limit : extreme.
An ultramarathon (also called ultra distance) is any sporting event involving running longer than the traditional marathon length of 42.195 kilometres (26.2188 mi).. Well known, popular & famous ultramarathons: Well-known ultramarathons sub-category.