Castleford had their Yorkshire Premier League North game against York ended early by rain.
No play was possible after tea after York had made 209-7 with Liam Hyde taking 3-52.
Castleford seconds won their York Senior League Ebor Three game at Goole Town by six wickets to stay top of the table.
After restricting Goole to 178-2 in their 45 overs, Castleford reached their target with 15.2 overs to spare.
A 56-run opening stand between Nathan Smith (32) and Harry Wilkinson (51) set them on the way then the latter joined with Jacob Green (50) in a 74-run partnership for the second wicket.
Murray Coyle (13 not out) finished the job for a winning run chase.