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Author Topic: World Handicapping Scheme Education Discussion  (Read 21610 times)

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Offline Dick in Shorts

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Re: World Handicapping Scheme Education Discussion
« Reply #300 on: Apr 21, 2022, 08:43:33 »
Keve - you haven’t told us your COURSE handicap - this will show how many shots you received for the nett double bogey hole - this may be different from your Playing handicap.
The stroke indexes and pars will also be needed
« Last Edit: Apr 21, 2022, 09:04:46 by Dick in Shorts »
:ping: G400 SFT 12 deg driver
:ping: G400 SFT  5 wood
:ping: G400  4(22 deg) & 5(26) deg) Hybrids
:wilson: Staff D300 6 - PW
:titleist: SM6 50/54/58 deg
:scottycameron: Futura 5S
:vice: Tour

Prize Money: 2010=£276  2011=£406 +2 bottles Malt Whisky 
 2012=£351 2013=£95 2014=£240 2015=£225 2016=£475
2017=£368 2018= £767 2019=£582 2020=£284 2021=£105
2022=£263

2021 WHS HI: 12.1>10.8>15.2
2022 WHS HI: 15.2>14.8>15.1>14.9>14.6>14.5>14.2>14.0>
13.4>13.1>13.2>13.6>13.4>13.5>14.3>14.1>14.6>15.2>
13.0>12.7>13.0>12.5>12.2>11.7>11.0>10.9>10.3>10.0>
9.8>10.4>10.8>10.9>11.4>11.5

2022: winners Alford Mixed G’somes

Offline Blofeld

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Re: World Handicapping Scheme Education Discussion
« Reply #301 on: Apr 21, 2022, 09:33:05 »
Keve - you haven’t told us your COURSE handicap - this will show how many shots you received for the nett double bogey hole - this may be different from your Playing handicap.
The stroke indexes and pars will also be needed

Dick....the nett double bogey hole is Par 5 SI 17. The screenshots show his PH as being 10....his CH therefore cannot be any more than 11.
Callaway Rogue ST Max LS 9* / Mitsubishi Tensei Blue 55 reg
Callaway Rogue ST LS 3-wood 15* / Mitsubishi Tensei Blue 65 reg
Callaway Rogue 5-wood 18* / Aldila Synergy 60 reg
Callaway Apex Utility Wood 21* / Project X Hzrdus Smoke 70 5.5
Callaway Apex (2016) 4H 20* / Mitsubishi Kuro Kage 80g reg
Callaway Apex (2016) 5H 23* / Mitsubishi Kuro Kage 80g reg
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L.A.B. Directed Force 2.1

Offline Dick in Shorts

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Re: World Handicapping Scheme Education Discussion
« Reply #302 on: Apr 21, 2022, 16:03:29 »
What about par and SI of 18 ?
:ping: G400 SFT 12 deg driver
:ping: G400 SFT  5 wood
:ping: G400  4(22 deg) & 5(26) deg) Hybrids
:wilson: Staff D300 6 - PW
:titleist: SM6 50/54/58 deg
:scottycameron: Futura 5S
:vice: Tour

Prize Money: 2010=£276  2011=£406 +2 bottles Malt Whisky 
 2012=£351 2013=£95 2014=£240 2015=£225 2016=£475
2017=£368 2018= £767 2019=£582 2020=£284 2021=£105
2022=£263

2021 WHS HI: 12.1>10.8>15.2
2022 WHS HI: 15.2>14.8>15.1>14.9>14.6>14.5>14.2>14.0>
13.4>13.1>13.2>13.6>13.4>13.5>14.3>14.1>14.6>15.2>
13.0>12.7>13.0>12.5>12.2>11.7>11.0>10.9>10.3>10.0>
9.8>10.4>10.8>10.9>11.4>11.5

2022: winners Alford Mixed G’somes

Offline Blofeld

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Re: World Handicapping Scheme Education Discussion
« Reply #303 on: Apr 21, 2022, 17:11:29 »
What about par and SI of 18 ?

Par 4 SI 8....so again not affected by any potential difference in CH/PH
Callaway Rogue ST Max LS 9* / Mitsubishi Tensei Blue 55 reg
Callaway Rogue ST LS 3-wood 15* / Mitsubishi Tensei Blue 65 reg
Callaway Rogue 5-wood 18* / Aldila Synergy 60 reg
Callaway Apex Utility Wood 21* / Project X Hzrdus Smoke 70 5.5
Callaway Apex (2016) 4H 20* / Mitsubishi Kuro Kage 80g reg
Callaway Apex (2016) 5H 23* / Mitsubishi Kuro Kage 80g reg
Callaway Apex CF19 6-AW / TT Elevate 95 reg
Vega Alcor 54* & Vega VWY 60* / Shimada Wedge flex
L.A.B. Directed Force 2.1

Offline Cols_Ears

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Re: World Handicapping Scheme Education Discussion
« Reply #304 on: Aug 15, 2022, 15:56:55 »
Nick - I have a question for you as our WHS Guru:

How is the individual round Score Differential actually calculated, as despite having a university degree in engineering I'll be buggered if I can work it out...

So yesterday I shot a 73, I have a WHS Index of 4.1, I played at Tidworth Garrison GC, white tees ( Course rating 71.5 / Slope 130) giving me a course handicap of 5.
According the the EGU MyGolf app this gives me a Score differential of 1.3 (PCC was zero, as it has been since they introduced the WHS at our place).

How do you calculate the 1.3??

Other random scores are with SD after the / and HCap in brackets - all on the same course / tees and zero PCC:

77 / 4.8 (4.6)
87 / 13.5 (4.4)
81 / 8.3 (4.1)
74 / 2.2 (4.7)
73 / 1.3 (6.0) - this is the one I don't understand - how can this score when played off a higher WHS Index and course handicap give the same score differential as the 73 I posted yesterday?

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Offline Blofeld

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Re: World Handicapping Scheme Education Discussion
« Reply #305 on: Aug 15, 2022, 17:44:17 »
Nick - I have a question for you as our WHS Guru:

How is the individual round Score Differential actually calculated, as despite having a university degree in engineering I'll be buggered if I can work it out...

So yesterday I shot a 73, I have a WHS Index of 4.1, I played at Tidworth Garrison GC, white tees ( Course rating 71.5 / Slope 130) giving me a course handicap of 5.
According the the EGU MyGolf app this gives me a Score differential of 1.3 (PCC was zero, as it has been since they introduced the WHS at our place).

How do you calculate the 1.3??

Other random scores are with SD after the / and HCap in brackets - all on the same course / tees and zero PCC:

77 / 4.8 (4.6)
87 / 13.5 (4.4)
81 / 8.3 (4.1)
74 / 2.2 (4.7)
73 / 1.3 (6.0) - this is the one I don't understand - how can this score when played off a higher WHS Index and course handicap give the same score differential as the 73 I posted yesterday?

Ok....so first of all....your existing/current WHS index or course handicap plays no part whatsoever in the calculation of your score differential.

The score differential is purely a function of your score, compared with Course Rating and then normalised to a course with a Slope rating of 113.

Score Differential =(113/slope rating)*(adjusted gross score - course rating - pcc)

So in your case Score Differential = (113/130)*(73-71.5-0)

which you will find is your 1.3
Callaway Rogue ST Max LS 9* / Mitsubishi Tensei Blue 55 reg
Callaway Rogue ST LS 3-wood 15* / Mitsubishi Tensei Blue 65 reg
Callaway Rogue 5-wood 18* / Aldila Synergy 60 reg
Callaway Apex Utility Wood 21* / Project X Hzrdus Smoke 70 5.5
Callaway Apex (2016) 4H 20* / Mitsubishi Kuro Kage 80g reg
Callaway Apex (2016) 5H 23* / Mitsubishi Kuro Kage 80g reg
Callaway Apex CF19 6-AW / TT Elevate 95 reg
Vega Alcor 54* & Vega VWY 60* / Shimada Wedge flex
L.A.B. Directed Force 2.1

Offline Cols_Ears

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Re: World Handicapping Scheme Education Discussion
« Reply #306 on: Aug 16, 2022, 09:54:28 »
Ok....so first of all....your existing/current WHS index or course handicap plays no part whatsoever in the calculation of your score differential.

The score differential is purely a function of your score, compared with Course Rating and then normalised to a course with a Slope rating of 113.

Score Differential =(113/slope rating)*(adjusted gross score - course rating - pcc)

So in your case Score Differential = (113/130)*(73-71.5-0)

which you will find is your 1.3
Thank Nick - much appreciated.
PXG 0311 Gen5 10.5° with Tensei AV Raw Blue 65S
:mizuno: ST200 3TS (playing 15.75°) with Diamana BF (Blueboard) 70 Stiff
:taylormade: SIM2 Rescue 3 Hybrid with an Accra TZ6 Hybrid M4 Stiff
:ping: iBlades Green Dot 4-6 with Accra iSeries Steel 115 Stiff +½"
:ping: Blueprints Green Dot 7-W with Accra iSeries Steel 115 Stiff +3/4"
:taylormade: MG3 wedges 50°, 54° & 58° SB with KBS 610 125 S+ +½"
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Offline Keve

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World Handicapping Scheme Education Discussion
« Reply #307 on: Aug 16, 2022, 15:44:58 »
I just accept now that the differential is what it is but last weeks at the Downfield open made me scratch my head.
I had a shocker of a round, scoring 2 7's an 8 and a 9 for 88, gross adjusted to 85 on a par 73 course. In my, and everyone else's defense, the course had been set up the day before for some international boy/girls event with flags perched on ridges and the greens running like putting on car bonnets.
I woke up at 3.30am for my usual pee and was stunned to see the differential was 8.1 and I had been cut by 0.6.
The winning score in Div 1 was 74, 1 over net so very tough.

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« Last Edit: Aug 16, 2022, 15:54:01 by Keve »

Offline Blofeld

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Re: World Handicapping Scheme Education Discussion
« Reply #308 on: Aug 16, 2022, 18:49:48 »
I just accept now that the differential is what it is but last weeks at the Downfield open made me scratch my head.
I had a shocker of a round, scoring 2 7's an 8 and a 9 for 88, gross adjusted to 85 on a par 73 course. In my, and everyone else's defense, the course had been set up the day before for some international boy/girls event with flags perched on ridges and the greens running like putting on car bonnets.
I woke up at 3.30am for my usual pee and was stunned to see the differential was 8.1 and I had been cut by 0.6.
The winning score in Div 1 was 74, 1 over net so very tough.

Sent from my SM-S906B using Tapatalk

Assuming I've got the right course (Slope 133 CR 73.5), this would indicate to me that there was a Course Condition Adjustment of 2 for the scores for the day.

So (85-73.5-2)*(113/133) will give you 8.1 (after rounding)
Callaway Rogue ST Max LS 9* / Mitsubishi Tensei Blue 55 reg
Callaway Rogue ST LS 3-wood 15* / Mitsubishi Tensei Blue 65 reg
Callaway Rogue 5-wood 18* / Aldila Synergy 60 reg
Callaway Apex Utility Wood 21* / Project X Hzrdus Smoke 70 5.5
Callaway Apex (2016) 4H 20* / Mitsubishi Kuro Kage 80g reg
Callaway Apex (2016) 5H 23* / Mitsubishi Kuro Kage 80g reg
Callaway Apex CF19 6-AW / TT Elevate 95 reg
Vega Alcor 54* & Vega VWY 60* / Shimada Wedge flex
L.A.B. Directed Force 2.1

 

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