+1 Edward!
romat: -2 it goes up, -3 stays the same and of course-4 goes down..
romat, you better name the scores than the Par deviations because only scores are going into the calculation, and 9 hole scores are doubled for this purpose. -3 may be a 69 on STA full 18 or 62 (= 2x31) from 9 holes at OLY - quite a difference!
Furthermore, you always have to compare the score with your average. The air is becoming thinner as you advance ;)