A jug is due, every time one of the following happens…
Appearances
Every 100 Saturday league/cup appearances
Bowling
First wicket for the club
4+ wickets in a match
Every 50 Saturday league/cup wickets
Batting
50+ runs in a match
Every 1,000 Saturday league/cup runs
Fielding
First catch for the club
3+ catches in a match (5+ dismissals for a wicket keeper)
Every 50 Saturday league/cup catches