Matt Lacey began his coaching career as a 20 –year- old, a year after representing the Junior Tall Blacks as a player alongside Reuben Te Rangi, Derone Raukawa and Tom Vodanovich. In his first year of coaching at Rosmini College, he guided the Junior Premier team to wins in the Zone 1 and 2 Junior Premierships.
This success was repeated in 2016 and in the same year he was an assistant coach of the Harbour U15 Girls team that claimed the National title in Wellington. At 23 he became the youngest head coach to capture the prestigious Schick Secondary Schools AA National Championship when guiding Rosmini College to the title in 2017. He repeated the feat in 2018 as Rosmini won back-to-back championships.
He was also Head Coach of the Harbour U19 team in 2018 that attended tournaments in the USA as well as the Aon U19 National Championships where the team finished third.
Lacey continues to coach at Rosmini College, Harbour Basketball and is also involved in the New Zealand High-Performance programme as an assistant coach with the New Zealand U17 Men’s team that will attend the FIBA U17 Oceania Tournament in New Caledonia in August.