Need Cron Suggestion

[AN-net]

I want to use cron to update select information on my board a select day of the week. my problem is that the source i use to update that information only allows 10 results at a time and 1-2 second delay between each query. What I want to do is be able to do the entire table at intervals of 10. how would i do this?

sorta like when you run update user titles script where u can choose how many users to update in a cycle