Linked College Board Practice PSAT/NMSQT

I took a practice PSAT/NMSQT on the college board website a few months ago with the intention of only doing and grading the reading comprehension portion. However, I didn't realize that I had graded the entire test, which came out to a total score of 450. When I linked my college board account to Khan Academy to share my actual PSAT scores and work on what I got wrong, that 450 also shows up alongside my two actual PSAT scores. Is there a way to ignore/remove that score so the recommended practice questions only pertain to the questions I got wrong on my real PSATs?