In 2014, he became the first man in history to complete the calendar-year Grand Slam in men's wheelchair doubles.

[8][9] Houdet also won two Grand Slam singles titles at Roland Garros and New York and was the runner-up in Melbourne.

[13][14] When Frédéric Cattanéo was his partner in doubles tournaments they won titles in Baton Rouge and Johannesburg.

[5] In doubles tournaments with Martin Legner Houdet won the title in Rome and was a losing finalist in Sardinia.

[11][18] Partnering Gordon Reid, Houdet won titles in Rotterdam,[19] Rue,[20] the Masters doubles.