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 » Technical Support » Ranking of boats faulty?

Posted by
etxnebe


Users avatar

Posts
6
Registered at
2007-12-23 10:29:47
2009-02-17 20:27:06 - Ranking of boats faulty?
As can be seen from the uploaded picture there is only 30.4 nm differense between the leader boat KarmaFish nd the #973 ranked boat R1 BOTECO1. Can you really trust the ranking shown on your boat. When I rechecked the ranking for R1 BOTECO1 sudddenly that boat is now #1 !!!

Best regards

ETXNEBE
Attachments
Posted by
AGage


Users avatar

Posts
411
Registered at
2008-12-27 10:31:57
2009-02-18 08:40:32 - Re: Ranking of boats faulty?
Jakob discussed this here: http://sailonline.org/board/thread/1674/?page=1#post-1674 which also has a link to another thread regarding this.

One thing you can do, to get a better idea of whats going on: use the ruler tool, and START a line on cape horn. DONT click another end but sweep the tool over the fleet and different areas of the course, and watch the distances change (sometomes VERY non-intuitively!)

Hope this helps...
I help develop the client interface for the best online ocean racing sim there is... __/)/)_/)__
Posted by
etxnebe


Users avatar

Posts
6
Registered at
2007-12-23 10:29:47
2009-02-18 19:05:01 - Re: Ranking of boats faulty?
Hello!

It is not reasonable that a boat can move from ranking #973 to be the leader boat (#1) within 15 minutes.
There must be something wrong in the caculations of the distanse.

regards,

etxnebe
Posted by
kalle


Users avatar

Posts
413
Registered at
2007-06-01 09:58:04
2009-02-18 19:50:57 - Re: Ranking of boats faulty?
The reason for the jumping is (as Jakob has said in other threads) that the rounding point for the cape jumps around (we do not calculate DTG throuugh the point, that would be unreasonable for shorter legs). This leg is exceptionally long and not really the case for which we wrote the DTG algorithm, but writing a generic algorithm that handles all corners cases is also a bit difficult.

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

Bluefin Tuna - Mexico Gulf to North Sea 2026

Join us and follow the Bluefin Tuna, as they migrate from their spawning grounds in the Gulf of Mexico to their feeding grounds in the North Sea off the coast of Norway. This 4300 nm race is part of our Ocean Championship and the final race of OCQ2 2026, and also the second leg of our Migration series. We will be sailing in our Gunboat 90. Race #2035
INFO by brainaid.de
Gunboat 90 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ2 - MIG - OCCH - SYC
Race starts: Jun 08th 11:00 Registration Open!
▶ Flash
GO TO RACE

Thessaloniki to Port Said 2026

Welcome back to the Eastern Mediterranean for the fifth race of our Magical Mediterranean Series. Only marginally less unlikely to be ever raced in real life during SOL’s lifetime than our previous race from Tobruk to Iskenderun, this 710nm race takes us from Greece’s ancient northern port of Thessaloniki through the Aegean island maze, south east into the Levantine Sea to a finish in modern Port Said, in splendid Swan 65s!
Race #1977
INFO by brainaid.de
Swan 65 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: MED - SYC
Race starts: Jun 06th 15:00 Registration Open!

▶ Flash
GO TO RACE

TuziTekwini TIMED Race 2026

Sailonline is delighted to have been invited again to partner with the King Shaka Yacht Club (KSYC) of South Africa to bring a virtual version of the Tuzi Tekwini Ocean Raceto our online community.
The Tuzi Tekwini Ocean Race is a near 90 nautical mile race down the east coast of South Africa from the port of Richards Bay to the port of Durban. Achievable in a single day and seen by some as an easy mile-builder, the course is more tactical than some think and should not be underestimated. This iconic race promises to be an unforgettable experience for yachting enthusiasts.
Our online version of the race will be 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 #2037
INFOby brainaid.de
Sailonline’s virtual yacht for all your runs will be our much-loved Farr 38 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ2 - TRCH - SUPBUD - SYC
RACE CLOSE: Saturday,
13 June at 23:00 UTC
Race starts: May 31st 12:00 Registration Open!
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

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