He made his first-class debut the following month, and after taking six wickets against Otago in February and another six, including his first five-wicket haul, playing for a New Zealand Academy side against the touring South Africans at the end of the month, he was called into the New Zealand national side for the Test series against the touring Sri Lankans.
[6] The 21 year-old took a wicket with his seventh ball in Test cricket[1][8] on a pitch which Wisden described as "tailored for the New Zealand medium-fast bowlers".
[2] At the start of the 2003–04 domestic season Walmsley chose to tour Pakistan with the New Zealand One Day International (ODI) side.
He was a key organiser of a 2005 project to promote cricket in South Auckland, focussing in particular on Māori and Pacific Islander communities.
In September 2023 she made her international debut for the New Zealand national netball team against England in the 2023 Taini Jamison Trophy Series.