Hi @craig_stoner , it should be possible to access all rubric evaluations for a moderated grading assignment, including those that were not selected for the final mark, using the Canvas Rubrics API (Rubrics - Canvas LMS REST API Documentation). If you have the course and rubric IDs, use the "Get a single rubric" option and set "graded_assessments" as one of the includes. I tested this and found that the "artifact_type" field in the RubricAssessment object should distinguish between the accepted final mark rubric evaluation and the evaluations done before moderation. The final mark artifact_type will be "Submission." The evaluations done before moderation have the artifact_type value "ModeratedGrading::ProvisionalGrade." The evaluations chosen as the final mark will appear twice, once with each of those values.
I hope this helps you get the information you need.