Facebook

Login

Support Sailonline

If you haven't already - join the SAILONLINE YACHT CLUB!

Please also consider making a donation - all amounts are greatly appreciated!

Board » General Discussion » Proposal for Performance Handicapping

Page: Previous 1 2 3 4 5 6 Next

Posted by
NZL_Scotsman


Users avatar

Posts
251
Registered at
2008-10-04 07:59:40
2012-02-29 04:46:18 - Re: Proposal for Performance Handicapping
The race info is in my spreadsheet. I'll separate out the info and post separately.
Posted by
NZL_Scotsman


Users avatar

Posts
251
Registered at
2008-10-04 07:59:40
2012-02-29 05:34:31 - Re: Proposal for Performance Handicapping
Here is a list of races from 2011 to today. It includes the race number, title, start time, number of entrants and number of finishers.
Attachments
Posted by
A2


Users avatar

Posts
347
Registered at
2009-10-26 00:39:42
2012-02-29 10:41:02 - Re: Proposal for Performance Handicapping
Thanks for this smaller list that I can use as a table of contents for the period covered.
None so blind
Posted by
NZL_Scotsman


Users avatar

Posts
251
Registered at
2008-10-04 07:59:40
2012-03-05 07:48:15 - Re: Proposal for Performance Handicapping
The attached spreadsheet is a complete list of our races up to 1 March 2012. I'm ignoring the timed races, and a few others where the data is suspect. There are 283 races where I'm happy with the data. I've now analysed all of these and have the results as a ratio of the winning time.
Attachments
Posted by
NZL_Scotsman


Users avatar

Posts
251
Registered at
2008-10-04 07:59:40
2012-03-05 07:54:05 - Re: Proposal for Performance Handicapping
I've selected a few SOLers and analysed their results over the whole 283 period. I chose the top 10 of their first 15 races as the starting rating. If the next race is better than this starting rating, then it is increased by 10% of the difference. This has been done for each race. So you can see the races where your performance has been better than your rating.

Most of this process is automated, but there are a few manual stages that are time consuming. I'll need to investigate ways to automate these.

I'd appreciate ideas for what we'd like to see with this. For example, if we'd like to use 20% for long or popular races and 5% for short races.

We'll also need to see how we can host this, whether here or on a companion site.
Attachments
Posted by
NZL_Scotsman


Users avatar

Posts
251
Registered at
2008-10-04 07:59:40
2012-03-05 07:55:29 - Re: Proposal for Performance Handicapping
By the way, I know there are a few errors, for example the races are in numerical order not date order. This will be relatively easy to sort out.
Posted by
NZL_Scotsman


Users avatar

Posts
251
Registered at
2008-10-04 07:59:40
2012-03-05 09:48:44 - Re: Proposal for Performance Handicapping
azur top SOLer with 241 race finishes, legend
Posted by
NZL_Scotsman


Users avatar

Posts
251
Registered at
2008-10-04 07:59:40
2012-03-05 10:09:08 - Re: Proposal for Performance Handicapping
I've only included improvements in rating. We could also include decreases depending they fall within a certain range, for example within 10%. This would allow some decrease in rating but not due to cruising or starting late.
Posted by
NZL_Scotsman


Users avatar

Posts
251
Registered at
2008-10-04 07:59:40
2012-03-07 07:34:58 - Re: Proposal for Performance Handicapping
Another thought after looking at the starting rating. I've used the top 10 results in the first 15 races. This results in a high rating for some sailors. Indeed, some are 1 as they won 10 races in this period. This might be too high, especially if we do not include a decrease in future rating. Maybe we should only drop 1 or 2 races in this initial period.
Posted by
NZL_Scotsman


Users avatar

Posts
251
Registered at
2008-10-04 07:59:40
2012-03-12 03:01:22 - Re: Proposal for Performance Handicapping
I've updated the previous file to include all SOL members. I've only included the summary output as the full file size is now over 60mb.

I've also tried to work out a reasonable performance rating which is easier to understand than the handicap style rating. The formula PR=10/(1.01 - hcp rating) seems to work quite well. This is show on the attached page.

Remaining potential issues to resolve if we are happy with the way this is going:

1) Starting rating based on first 15 completed races with 5 drops. Should this be more/less races or more/less drops?
2) Improvement of 10% of the race result where better than existing rating. No decrease for any result lower than existing rating. Should this adjustment be more/less per race; vary for race type; vary for number/who racing against; include lower than existing (ie rating drops)?

Attachments

Page: Previous 1 2 3 4 5 6 Next

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

Susan Hood Trophy Race 2026

Lake Ontario Offshore Racing (LOOR) welcomes racers to Sailonline’s virtual version of their annual Susan Hood Trophy Race. This year, this pleasant weekender on western Lake Ontario will be of about 60nm in length, and online for convenience will start and finish at the Port Credit Yacht Club (PCYC). At or before the real-life Skipper’s Briefing a decision will be made to race the course clockwise (course Delta) or anti-clockwise (Echo). If there is time we will match this online. As before, the race is the first of two that will count towards a special Sailonline's LOOR Series medals, but this year we sail in Jeanneau Sun Fast 3300s. Bon voyage!
Race #2033
INFOby brainaid.de
Sun Fast 3300 PARTICULARS
NAM_AWIP WX Updates:
0245 / 0845 / 1445 / 2045
Ranking: LOOR - SUPBUD - SYC
Race starts: May 29th 23:45 Registration Open!

▶ Flash
GO TO RACE

Cross the Convergence 2026 - St Helena to Cape Verde


The fourth race of our series of ocean voyages across the World’s convergence zones takes us out of the Pacific into the Atlantic for a 2200nm race in Judel Vrolijk 62’s, from the desolation of St Helena, there where Napolean Bonaparte saw out the end of his life, to the even greater desolation of Fogo in the Cape Verde’s. You’ll have to cross the equator, with the coasts of Africa and South America your only navigational restrictions.
Race #1984
INFOby brainaid.de
Judel Vrolijk 62PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: CCZ - SYC
Race starts: May 22nd 18:00 Registration Open!
▶ Flash
GO TO RACE

Chesapeake and Potomac TIMED Race 2026

Welcome to the Chesapeake Bay, the sailing capital of the United States. Feast on Maryland crab cakes or crabs seasoned with Old Bay spice before sailing down the Bay aboard a Formula 18 catamaran on a 128 nm course that will take you up the Potomac River finishing at Quantico, Virginia. This is a TIMEDrace so you may RE-REGISTER HEREto try again after finishing a run. You will have two weeks to test your skill and decision making after the race opens.
Race #2032
INFOby brainaid.de
Formula 18 catamaran Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ2 - TRCH - SYC
RACE CLOSE: Saturday,
23 May at 23:00 UTC
Race starts: May 10th 12:00 Registration Open!
▶ Flash
GO TO RACE

Tasmania to Kamchatka 2026

Welcome to yet another all-new route. Tasmania to Kamchatka, part of our Ocean Championship and also the third leg of the ROW (Round the Old World) series. Be aware of the obstacles on the way, likely to split the fleet. It's like X:mas to X:mas, crossing the same waters, navigating the same archipelagos. This second race of OCQ2 2026 will be sailed in our revised 'version 2' Imoca 60 Foil. Race #2031
INFO by brainaid.de
Imoca 60 Foil v2 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ2 - ROW - OCCH - SYC
Race starts: May 04th 11:00 Registration Closed
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

  1. Sailonline Yacht Club Member WRmirekd
  2. Sailonline Yacht Club Member CriticalHippo
  3. Sailonline Yacht Club Member Panpyc
  4. Sailonline Yacht Club Member rafa
  5. Sailonline Yacht Club Member CollegeFund
  6. Sailonline Yacht Club Member rumskib
  7. Sailonline Yacht Club Member KaSToR
  8. Sailonline Yacht Club Member bonknhoot
  9. Sailonline Yacht Club Member vida
  10. Sailonline Yacht Club Member sassy63

View full list

Series

Mobile Client

SYC members have the benefit of access to our mobile/lightweight web client!

The mobile client