Forum: The Racing Rules of Sailing

Rated Fleets - time penalties (SCP/DPI etc): elapsed vs corrected

Stefan Kunstmann
Certifications:
  • International Race Officer
Hi,
in a variety of events that I've helped to manage I kept stumbling about discretionary or other penalties expressed in "corrected time". In trying to convince Organisers to change their ways, I'm seeking your input to figure out if my bias is omitting arguments pro corrected time.

In an extreme example, a boat S(low) rated 1.000 and a boat F(ast) rated 2.000 could compete against each other. As most penalties have their foundation in a replacement of action on the water (e.g. a 2-turn penalty), I'm of the opinion that they should be based on elapsed time. Applying a 30 minute penalty on corrected time in my example would be equivalent to 30 minutes racing time on Boat S, but only 15 on Boat F. Doesn't appear to be fair.
Another possibility is that whilst e.g. a Class 40 in an international event may be raced in an OD-Class, it may also dual-score in an IRC or ORC class. Applying a corrected time penalty would mean that the elapsed equivalent would be different in both, as in the OD class the (sort-of, logical) TCF would be 1.000, but different in the IRC/ORC/... class.

A single sort-of-pro would be that choosing a corrected time penalty would be easier were the jury to aim for a particular place the competitor should fall into. However, my argument is that they should then assign a score instead. "Choosing" the end-result is also somewhat discouraged, because it can then not be applied consistently throughout a fleet of boat, and would ergo be biased.

Newer documents such as DR21-01 would also explicitly use elapsed time penalties.

Now over to you: Do you have any argument that would require, or at least make it beneficial, to reach for a penalty on corrected instead of elapsed time, or that could simply not be achieved on elapsed time? I shall be interested to learn your point of view.
Thanks!
Created: 24-Jul-02 12:21

Comments

P
John Allan
Certifications:
  • National Judge
  • Regional Race Officer
0
I understand Discretionary Penalties should be given as a scoring penalty

https://www.sailing.org/tools/documents/DiscretionayPenaltiesWPIR-[10934].pdf

Some Standard Penalties, for example penalty in lieu of OCS, may be given as correction to elapsed time, because this represents a nominal estimate of the actual, not corrected time advantage being removed.

I agree that giving a penalty as an adjustment to corrected time is effectively giving a penalty of so many places, but is less transparent than expressing the penalty that way.
Created: 24-Jul-02 13:47
Stefan Kunstmann
Certifications:
  • International Race Officer
0
Thanks John.
In Offshore and Ocean Racing, SP and DPI are frequently time-based. You may be right in your comment where Dinghy or One Design fleets are concerned.

I don't necessarily want to debate Judges' concerns, but simply figure out if I may have missed a case that would speak for a time-penalty in corrected rather than elapsed time. I can't see one myself.
Created: 24-Jul-02 14:55
Jim Champ
Nationality: United Kingdom
0
Penalties are always something of a blunt instrument in handicap races. Consider, for instance, the difference in time and distance lost to complete a 720 degree turn in a Laser against one in a 49er, or, for that matter, the time taken to return from OCS in very different craft. To my mind a percentage time penalty would be more analogous to the default percentage scoring penalty than a fixed time penalty, and that is equivalent to a corrected time penalty. One might extend the analogy in the reverse direction and consider whether whether its better that a scoring penalty should be % of DNF score or a fixed number of points whether there are 5 or 500 boats in the race. I think one has to recognise that no penalty method is perfect, and that reasonable cases can be made for place or time penalty, and for fixed figure or percentage.
Created: 24-Jul-02 19:44
Stefan Kunstmann
Certifications:
  • International Race Officer
0

Thanks for your input, Jim.

To my mind a percentage time penalty would be more analogous to the default percentage scoring penalty than a fixed time penalty, and that is equivalent to a corrected time penalty
To reply to that, a percentage wouldn't matter whether applied to elapsed or corrected. For 20% time, it wouldn't matter whether you calculate n minutes x TCF x 1.2 or n minutes x 1.2 x TCF to apply the same penalty. So that won't make it to a "pro" on my list.

Again, I'm trying to avoid a debate of what penalties should be applied when or how much - simply that if fixed time penalties such as 10, 30, 60 minutes etc were used should they be applied to corrected or elapsed time.
I'm still of the opinion that they should always be applied to elapsed time for the reasons given in my initial post. Thus far I haven't heard any convincing arguments to apply them to corrected time instead. However I'm still interested if I may have missed anything that would support the latter method.

Created: 24-Jul-03 08:18
P
John Allan
Certifications:
  • National Judge
  • Regional Race Officer
0
Stefan,  You seem to be talking about Standard Penalties that are absolutely arbitrary and not any sort of estimate of advantage gained by a breach, but representing a graduated scale based on a subjective perception of severity.

In that case, applying time penalties to elapsed times of boats with widely different handicaps will result in significantly inconsistent outcomes for different boats, as you have described

For that reason I think it would be logical to apply those penalties to corrected times.

For what it's worth, in the Sydney to Hobart race various time penalties are prescribed, all to be applied to elapsed times.  See this example 

https://s3.ap-southeast-2.amazonaws.com/media.prod.cyca/media/3442918/final-rolex-sydney-hobart-yacht-race-2021-sailing-instructions.pdf

I can't see any logic path to determine whether to apply time penalties to elapsed or corrected times if the OA/RC doesn't expressly say which in the NOR/SI.
Created: 24-Jul-03 13:04
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