[1] She is best remembered for her silver medal at the Paris Olympics of 1924 in the women's doubles event partnering with Kitty McKane.

[2] In 1923 she won the women's doubles title at the U.S. National Championships with McKane defeating the American pairing of Hazel Hotchkiss Wightman and Eleanor Goss in three sets.

In 1924 she was part of the British Wightman Cup team who defeated the United States 6–1 at Wimbledon.

Covell won both her singles matches against Helen Wills and Molla Mallory.

[4][5] Phyllis Howkins married Beverley Carthew Covell on 23 September 1921 in Bombay.