"It'll be extremely competitive with players playing for starting spots for this season."
Meredith, who is unaware of any other similar tournaments contested in New Zealand, expects a near full-strength Auckland Marist side to be among the frontrunners after they missed out on claiming the cup last year.
He was yet to receive team lists but expected some provincial players to be on show.
The Greerton club, formed in 1961 before becoming the first Marist club in the region in 1989, moved to Greerton Park in 1990.
Meredith said the ground's clubrooms will be open on both days, affording views of both the rugby and netball action.
Netball games start at 9am tomorrow, followed by the first of the rugby clashes at 10.30am.
Finals, including promotion and relegation games, will be played on Sunday.
Defending champions
Spillane Cup: Hutt Old Boys' Marist
Ham Cuming Cup: Tukapa Rugby & Sports
Brennan Cup: Wanganui Marist
Moran Cup (Colts): Auckland Marist
Liston Cup (Colts): Hamilton Marist
Netball: Tukapa Senior A
Spirit award: Greerton Marist