He held a Prize Fellowship at Harvard from 1970 to 1975, and was awarded his PhD in Anthropology from Harvard University in 1975.

Prize Fellowships, All Souls College, Oxford.

In 1971 he was elected to a Prize Fellowship of All Souls College, which he held until 1977.

In 1881 he was elected to a Prize Fellowship at All Souls College, where he would remain for the rest of his career.

He was elected to a Prize Fellowship at Merton College in 1890, and in 1892 became a philosophy lecturer at the University of St Andrew's.

He decided to study philosophy, and he won a Prize Fellowship to All Souls, at Oxford, which entitled him to room and board at the college for seven years, with no teaching duties.

Wormald's potential was subsequently recognized by both Merton and All Souls when those Colleges awarded him, respectively, the Harmsworth Senior Scholarship and a seven-year Prize Fellowship.

He also was awarded a Prize Fellowship of the Harvard Society of Fellows, and a Rockefeller Foundation Fellowship.

Subsequently, Sen won a Prize Fellowship at Trinity College, which gave him four years of freedom to do anything he liked, during which period he took the radical decision of studying philosophy.

One of the headings of the "Program of Discussion" was "The Abolition of Prize Fellowships."