Hello @PheelloMakhele
Thanks for posting this in the Canvas Community!
I looked through the documentation(HERE and HERE)on the different filters that could be applied to the Gradebook and was able to confirm that there is not a filter that can be configured to display by graders or moderators.
However, I know that you can look at the Gradebook history and you can filter out by Grader in that area. If you are using Moderated assignments, you can check to see the scores that were entered before you publish the Final grades. HERE is a guide on that.
Hopefully this helps!
-Colton
