Nice score indeed!
Robert1893: That 27 should have lowered your average, even
if you are saturated.
+1! That 27 on STA translates into a 54 which - as a low guess - should have reduced your average by 10/500 = 0.02.
Please, don't refer to scores as "+-Par", it's too ambiguous. Might be 72-9 = 63 on STA (18 holes) or (34-9)*2 = 50 on OLY Front 9. See the difference?
Indicating the course would eliminate the chance that an illegitimite Par3 or Par5 score is on the table.
Have fun!