Dixon could only finish 79th out of 87 in the event, won by Norwegian Ole Einar Bjoerndalen.
He still managed to finish above his team-mate Mark Gee, who came 81st.
Late call-up Jason Sklenar justified his inclusion in the British side by finishing in 48th place.
Dixon admitted he had had a terrible day at Soldier Hollow.
He said: "I've never felt so much like giving up a race in my career. I felt dizzy and found the course very tough."
Just four days earlier, Dixon was on a high after carrying the British flag for the third time at a Winter Games opening ceremony.