Western Australian State & Territory Umpire Panel (STUP) member Jamie Thomas has been appointed alongside Johnstone for the season decider. Johnstone has been in action across all Australian Cricket professional competitions including the Marsh Sheffield Shield and One Day Cup together with KFC BBL12 appointments. Thomas also completed a full representative season standing in Weber WBBL, WNCL and Toyota Second XI matches.
The full list of Grand Final umpire appointments:
WACA Premier Cricket Men's First Grade Grand Final
Bayswater-Morley v Perth - 25 & 26 March 2023, Lilac Hill
Nathan Johnstone & Jamie Thomas
WACA Premier Cricket Women's First Grade Grand Final
South Perth v Melville - 19 March 2023, Richardson Park
Kate Holloman & Nathan Gilders
WACA Premier Cricket Men's Second Grade Grand Final
Willetton v Midland-Guildford - 25 & 26 March 2023, Cresswell Park
Jarryd Buscall & Ashlee Gibbons
WACA Premier Cricket Women's Second Grade Grand Final
Wanneroo v Perth - 19 March 2023, Lilac Hill
Ken Ashwin & Bruce Banyard
WACA Premier Cricket Men's Third Grade Grand Final
Wanneroo v Willetton - 25 & 26 March 2023, Justin Langer Oval
Todd Rann & Nick Middleton
WACA Premier Cricket Men's Fourth Grade Grand Final
Subiaco-Floreat v Rockingham-Mandurah - 25 & 26 March 2023, Abbett Park
Dennis Smallwood & Ahmad Khan