The problem with that Peter:
5 guys can play a par 5:
4 of them make birdie 4
1 makes double bogey 7
Hole Average is 4.6 which rounds to 5, but does that really tell the story?
It does if you're trying to predict where an average player in the field stands with say 7 holes to play. After all, if another player made a double, then there is some odds that he will as well.
Otherwise, a fix would be to use the median score for each hole. I bet that the median and the average- rounded to the nearest integer are going to be exactly the same at Harding. If not, then maybe 1 hole like the 16th toggles from an easy 4 to a hard 3. But the difference would be really insubstantial from a viewership standpoint.
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I recently played in the WI state am as an example of how meaningless par is. They modified par from 72 to 70 for the tournament by labeling 2 of the par 5, par 4s. So, they made the course a par 70. The field average for the 1st round was 77.09. The average handicap for the field was probably around 0.0. On the 2 par 5s that they changed to par 4s, the field average was 4.5 (470 yards) and 4.26 (476 yards). But the 9th hole was 325 yards and averaged 4.69 due to a tucked pin. If this would have been a televised event with a leaderboard, it's not like you'd want them to call the 9th hole a par 5. Still, in this event, there was only one hole where the median score was not par. That was the 2nd hole which had slightly more bogeys than pars and a 4.59 average overall.
Good players and pros average below 2 putts per GIR. So the assumption of 2 putts in the concept of par is a rounded figure. On the other hand, par assumes the the expert player will reach the green in regulation, which only actually happens about 70% of the time (and they don't always get up and down and can suffer penalty strokes, etc). Luckily, the overestimate and the underestimate tend to cancel each other.