Has anyone had "adjusted differential" kick in?

[TheCityGame]

I've posted about 20 rounds already this year and I haven't had a single round where the adjustment was not zero.

Obviously, I don't know what everyone posts each day, but I've been out there on a a few tough days this year (tough pins, tough conditions, people getting back into the game after the plague lay-off) in a group with 12-16 people who I know almost all shot way over their handicaps and it has me wondering just what it takes to get the adjustment to kick in.

Pretty much everyone in the game I play with has seen their handicap go up a couple of points early in the year.

So, anyway. . .has anyone seen the adjustment happen? what was it like out there that day?

[GSDriver]

Nope and definitely played in some conditions where was expected. Curious to see IF ever do.

We've played in saturated soil, forcing CPO (path only) along with some 30 mph winds, if those don't qualify, no tellin what would.

[lchang]

Yes. 2 weeks ago, actually had a -1 adjustment, which means it was playing easy that day. (Friendly light breeze in opposite of the usual tough direction and firm conditions, so the course played shorter than normal)

[davep043]

At my home club we've had just one day all year with a PCC adjustment. It was mid-February, and it was a +1 adjustment.

[Halebopp]

At our club, they've had enough scores to calculate the PCC on 15 days on the easier course, it has come out as 0 13 times and twice it has been -1. The PCC has been calculated 7 times on our tougher course, 4 times it has been 0, twice +1 and once +2.

 

With a dry spring, the rough not being fully grown yet and the greens being slower, the easier course has certainly played shorter and easier than it does for most of the summer. As for the tougher course, I'm actually surprised there have been four days of no adjustments as it's one of those courses that don't fit well into the Course Rating system.

[Krt22]

Only once, +1, was very windy

[jmkenn0]

Twice, -1 both times.

Edit: Its a bit of a crapshoot - you have to enter your score that day, have a bunch of other people enter their score that day, and have it adjust. I think you will see more in the future, as people get used to posting their scores during the round or right after.

[North Butte]

Definitely a crapshoot.

It's happened once (PCC: -1) in my 50+ rounds this year. That was a typical Spring day with a bit of breeze, fairways slightly wet but not muddy, course setup absolutely normal and just the usual member play going on. Nothing to suggest it should be an "easy" or "hard" scoring day. Probably just a combination of enough people playing from my tees and posting immediately plus a few outlier scores or something.

[davep043]

"enough people playing from my tees"

As I understand it, its not done on a tee by tee basis, the evaluation includes all scores posted on that course for the day, as long as they're posted on the day of play (with some other minor limitations).

[Newby]

You are correct. All legitimate scores from all rated tees.

[rogolf]

I'd suggest that all scores posted are "legitimate", the computer system probably cannot determine otherwise.

[Augster]

I have 74 scores posted in 2020. No PCC’s. I’ve played in rain, I’ve played in snow. I’ve played in high winds, I’ve played in dead calm. I’ve played in extremely hot, and I’ve played in very cold. No PCC’s

I did shoot more than 7 under my index one round and got the -1 adjustment for all 20 scores on my scoring record though. So that part of the system certainly works.

[lchang]

Is there a way to see if there's been a PCC adjustment for a course for a certain day if you have NOT yourself posted a score for that day?

[davep043]

Handicap administrators (usually the Committee Chair and often the pro shop staff) can look it up for any course within the Regional or State Association. For instance, I can see if any course in Virginia has a PCC applied for a specific date, or range of dates. Or you can check the records of anyone you know who played that day. But I don't think its easily available if you're just curious. But now I'm curious, why would you want to know about a PCC on a day and course you hadn't played?

[lchang]

Was asking friends who played a course together the other day (without me) and they both went low in perfect conditions. Was wondering if I could see for myself about the PCC (instead of asking them to go find it in the GHIN app--and of course they've never even heard of PCC)

[davep043]

If you know their names, you can check their scores, and GHIN will tell you about any PCC adjustments. Assuming, of course that you have your own GHIN account and can sign on. And assuming that they entered their scores.

[lchang]

Oh, of course! They are my buds and I have them as partners in my GHIN app. I don't know why I didn't think to check their details on there. Thanks!

[Hawkeye77]

Had a +.5 for a 9 hole round last week. First night of league 2020 plus unseasonably hot and very windy. Interesting. Just happy to be out playing.

[anythingfinite]

No adjustments in over 30 rounds this year. Its been an insanely windy spring, often times with the winds out of nontraditional directions. If sustained winds of 20 and gusts over 40+ don't adjust it, i don't know what will.

[Halebopp]

The scores that are posted that day. :)

[anythingfinite]

Well, right.

[Augster]

I have 89 rounds posted this year and had my first PCC adjustment. A -1. I shot 1-over which should have been 2.6 differential, instead it’s 3.6.

And here I thought my first good round in a month was going to sink my climbing cap. Instead, it only went down 0.1. Thanks PCC!

[MisterT]

I had a -1 show up recently and I have no idea why. They day did not seem unlike any other day with no adjustment.

[Seamus_McDuff]

 

This is not mine as I did not play that day.

Does the CDGA have this backwards?

In order for that 84 with a -1 PCC to have a differential of 10.9, a score of 85 has to be used in the differential calculation. Is the CDGA using “-“ when they should be using “+”?

 

ETA

Looks like it is correct. When the PCC is -1 you add 1 to the posted score before differential calculation.

[phil75070]

I've had four rounds adjusted. Each time the adjustment was -1.

[davep043]

Why? Because scores posted that day were lower than normal. It could be the course really played easier, or it could just be random variabillity.

[DaveGoodrich]

Had a +2 the other day. Perfect, benign conditions. No way the course was playing harder than normal. I wonder how many scores have to be posted for a course on a given day for a score variance to be considered statistically significant.

[Halebopp]

At least over here it's eight scores from players with handicaps of 36 or better.

[davep043]

@Halebopp has it right, it takes a minimum of 8 scores, with some additional limitations. A lot of this stuff is pretty easily available in the Handicap Rules: Rules of HandicappingThe POO is in Rule 5.6.

[Augster]

On 6/19/2020 at 2:14 PM, Augster said:

I have 89 rounds posted this year and had my first PCC adjustment. A -1. I shot 1-over which should have been 2.6 differential, instead it’s 3.6.

And here I thought my first good round in a month was going to sink my climbing cap. Instead, it only went down 0.1. Thanks PCC!

As a follow up...

 

I now have 200 scores posted this year. I have 3,+1 days and and 3, -1 days. 
 

The 3 plus 1 days were tourneys where a bunch of players from around the area go to a course they don’t usually play and everyone posts their scores.  I imagine the average differential on the course that day is higher than normal. 
 

The -1 days I shot a good score and the PCC basically said, “Conditions were too easy, that’s why you played well.”

 

In conclusion, the PCC barely adds in. If one wanted to keep their cap at home on a spreadsheet with everything the same except the PCC, they would have close enough to a valid cap to gamble with. It’d be close enough to “identify their ability”. 
 

As I said in December of 2019, the PCC would be much ado about nothing.