[1] In 1968 he rowed in the Eton College eight that won the silver medal in the FISA World Youth Championships in Amsterdam.

[2] In 1969 he rowed in the Eton College coxless four that won the Visitors' Challenge Cup at Henley Royal Regatta and then won the silver medal in the FISA World Youth Championships in Naples.

[3] Maxwell rowed in the winning Cambridge Boat Race crews in both 1971 and 1972.

[1] Also during 1972 he won the coxed pairs title with Michael Hart and Alan Inns, at the 1972 National Rowing Championships.

[4][5] In 1972 at the Summer Olympics in Munich, he partnered Mike Hart to finish eighth in the coxed pair event.