Re: Ask Chuck Kennedy
The distributions usually need to be adjusted by rating to one of our four skill levels (1000, 950, 900, 850) to make it useful for analyzing whether a hole does a good job spreading scores for that skill level and whether the scoring average meets the intentions of the hole designer. For example, does the scoring average adjusted to 950 level from a Blue tee drop the average below 2.5 making it a too easy par 3 (stealth par 2)? I'm in the process of analyzing scores from this year's Mid-Nationals to see whether certain holes on our Gold course need to be modified or whether the alternate pin placement will be better for Gold level players at Pro Worlds next year.
We also modified our Par 3 island hole that's similar to Winthrop Gold #17 to try and eliminate the donut effect of way more scores of 2 and 4 on the hole than scores of 3. It seemed to work but now the overall average is lower than 2.5 so we may need to lengthen the tee or add some trees on the route.
Another basic review determines whether a hole might have too many of the same scores for a skill level on a hole. For example, if more than 7 out of 10 Blue level players shoot a 3 on a hole, it probably is the wrong length to spread the scores for that level. Moving the tee or pin longer or shorter about 30 feet changes the scoring average about 0.1 up or down, respectively.
Members of the Disc Golf Course Designers group have access to a hole analysis tool called the Hole Forecaster which automatically adjusts scores to the PDGA skill levels making the analysis process much easier.