get_results_for_run cannot be filtered to return the last set of results

[marceloa-asg]

I'm trying to get the last set of results for a test run.
This test run is automatically executed by our CI.
The test run had about 700 test cases, but it can be executed several times in a day several times a week.
Thus, when I retrieve the results using get_results_for_run, i'm getting about 25,000 results. building and returning the result set of this size takes too long.
I cannot filter by date, since it is unknown to me when the last run was executed.
I need a way to thel the server to give me just the last set of results.