To recognise the achievement of players selected in the Randwick Petersham 1st XI, the club introduced a capping system in 2001- 02, its first season.
Players retain the number they are allocated for all time. The last number allocated will also reflect the total number of players to play in the club's 1st Grade team. A total of 152 have now played in the 1st XI since the club's creation 22 years ago. This season, six players made their debut as 1st graders with Randwick Petersham. Each was presented with his cap by an official or representative of the club before the start of play in their first match in the top grade. The capped players for 2022-23 are:
