Laksri Wijewickrema made a 77 ball duck for Eastlake 4th Grade against Queanbeyan yesterday at Neil Bulger Oval in Queanbeyan. Although I can’t be 100% sure but I believe this is a record for ACT Grade Cricket. Eastlake made 6-44 off 50 overs to force a draw in reply to Queanbeyan’s 9 dec 238.
The record for the most balls faced for a duck in Test Cricket is Geoff Allott who made a 77 ball duck for New Zealand against South Africa in 1999.
The record I have found for minor cricket is Otago Country captain Fraser Wilson who made an unbeaten duck off 119 balls in two hours against Southland in Alexandra in 2017.