Willard won two mixed doubles titles alongside Daphne Akhurst at the Australasian Championships, the future Australian Open, in 1924 and 1925.
Willard also finished singles runner-up to John Hawkes in 1926 and reached the semifinals in 1927 and 1930.
He returned at the 1930 Championships where he lost in the first round of the singles event, reached the quarterfinal of the doubles with Harry Hopman and made it to the third round of the mixed doubles partnering Lolette Payot.
In the doubles event he teamed up with James Bayley and reached the second round in which they lost to eventual Olympic champions Vincent Richards and Frank Hunter.
[3][4] Willard won the Sydney metropolitan championships in October 1929 after a victory in the final against Jack Crawford.