Handicaps for the 2020 Season
The Table below shows the Portsmouth Yardstick Numbers (PYNs) your Sailing Team has decided to use at the start of the 2020 racing season.
Setting handicaps for racing between different designs is not easy and we have followed the best practice recommended to clubs by RYA. This means we start by looking at the RYA's published list of PYNs noting they are based on results submitted from clubs across the country, including many whose conditions are dissimilar to those in Chichester Harbour and do not cover all our classes. As recommended by the RYA, we have therefore adjusted these published national PYNs to take account of local conditions and looked elsewhere for classes not included. We do this using the RYA's own tool to evaluate the data returned from 7 Chichester Harbour Clubs over past years and also checking to see if there have been significant shifts when looking at just the last 3 seasons. In addition we have taken into account the "WWSC data only" results where these appear to show a class of boat is performing differently in our racing to those reported at other clubs.
In the Table below we first show the PYN used for each class in the 2019 racing at WWSC. Then there are 2 columns which show PYNs computed from the WWSC-only and Chichester Harbour data 2017 to 2019. The next column shows the RYA national PYN proposed for 2020. Finally we give the Sailing Team's agreed WWSC PYNs for use in 2020 (in Green) with a brief comment on its basis. Where the computed PYN from local data is based on only very few results (and often just 1 boat), we have placed more weight on the national data.
The Committee intends to review the racing results for the first half of the season and make changes to PY numbers, if warranted, prior to the start of Regatta Week, which will then be valid for the rest of the season.
This year we will again experiment with applying "personal handicaps" if only to add an additional element of interest to our Regatta Week Races. (Personal handicaps are based on the results achieved by a particular helm + boat combination in previous WWSC races.) They will not replace the normal Class-based PYNs but will be used in parallel with them and reveal how a boat's performance changes from race to race.
| Class | WWSC PYN 2019 |
PYN based on 2017-2019 data from: |
RYA PYN FOR 2020 |
WWSC PYN FOR 2020 |
COMMENT | |
|---|---|---|---|---|---|---|
| WWSC | Chichester Harbour |
|||||
| 2000 | 1085 | 1073 | 1103 | 1114 | 1087 | In line with RYA increase and midway between WW & Chi (2017-19 data) values |
| 4000 | 917 | 945 | 923 | 917 | 923 | Chichester Harbour value |
| 420 | 1105 | 1106 | 1108 | 1105 | 1108 | Chichester Harbour value |
| Bembridge Scow | 1526 | 1553 | n/a | n/a | 1540 | Recognition of recent performance |
| Chichester Scow | 1466 | 1475 | 1437 | n/a | 1466 | Should really be 1437 |
| Contender | 969 | 956 | 955 | 969 | 963 | Move towards Chi Harbour value |
| Cornish Coble | 1395 | 1428 | n/a | n/a | 1410 | Recognition of recent performance |
| Devon Yawl | 1189 | 1184 | 1194 | n/a | 1189 | Midway between WW & Chi (2017-19 data) values |
| Flying Dutchman | 879 | 849 | n/a | 879 | 879 | Stick with historic given low confidence factor of other data |
| Gull | 1363 | 1392 | 1392 | 1363 | 1378 | Recognition of recent performance |
| Laser | 1099 | 1099 | 1104 | 1100 | 1100 | Consistent with RYA increase |
| Laser 4.7 | 1210 | 1216 | 1205 | 1208 | 1210 | Midway between WW & Chi (2017-19 data) values |
| Laser Radial | 1137 | 1147 | 1150 | 1147 | 1148 | Midway between WW & Chi (2017-19 data) values |
| Lightning 368 | 1162, then 1150 | 1150 | 1155 | 1162 | 1155 | Chi Harbour data value |
| Lymington River Scow | 1443 | 1428 | n/a | 1475 | 1436 | Recognition of recent performance |
| RS Feva (training rig) | 1270 | 1282 | n/a | n/a | 1276 | Effectively a WWSC handicap (no other data available) |
| RS 600 | 916 | n/a | 927 | 920 | 920 | RYA value given low confidence factor of local data |
| Solo | 1148 | n/a | 1148 | 1142 | 1148 | Chi Harbour data value |
| Solution | 1089 | 1137 | 1122 | 1092 | 1092 | RYA value given low confidence factor of local data |
| Supernova | 1080 | 1092 | 1094 | 1077 | 1087 | Move towards Chi data value |
| Supernova Lite | 1160 | 1190 | n/a | n/a | 1175 | Recognition of recent performance |
| Topper | 1350 | 1370 | 1347 | 1365 | 1365 | RYA to encourage more WWSC Topper racing |
| Topper 4.2 | 1430 | n/a | 1421 | 1409 | 1426 | Move towards Chi data value |
| Wayfarer | 1130 | 1132 | 1108 | 1102 | 1130 | A bespoke handicap for no spinnaker rig |
Last updated 09:54 on 24 December 2020