It’s not about playing to ones handicap, it’s about what your differential is for the round. You have a index posted each time you post a score to GHIN(or what ever you use). You can figure what you differential is for each round by taking your score and substrack the course rating, then divide by course slope and multiply by 113. This gives you the differential for that score for that day. Their is a table used to determine how many times and by how much you can beat your differential in “x” number of rounds. Score to par has no bearing on this. It’s how much you beat your differential.