Hi Dave
The chances of a boat sailing less laps & beating one that did more are fairly remote & are only
likely to occur if the wind dies after the first boat of that class has been sent round again & all
others finished.
This is a common debate in the club bar & always seems to come from the faster sailors who moan like
hell when the wind drops but go surprisingly quiet when the wind increases!!!
If you really want to cover this aspect, you may wish to consider the following:
1. Add the following SI: "When boats of the same class and RYA Portsmouth Yardstick number complete
a different number of laps, the Race Officer may adjust upwards, the corrected times of those
sailing fewer laps to a corrected time which is one second or more greater than the slowest boat
completing an additional lap"
2. Ask the Race Officer to try & ensure that if the wind is dying, the lead boats in the class are
not sent round again if slower boats are likely to be finished earlier. Not always possible but
worth a try.
If it does happen, follow the SI (the key word being MAY) & adjust/fudge it manually, otherwise
leave well alone & concentrate on socialising in the bar 
I appreciate that the perfectionists out there may say that this is wrong but hey! if the rest of
the fleet are happy with what you have done, crossing the t's & dotting the i's several times is not
what everyone came to the regatta for.
This has been the subject of great debate over the years at one of my clubs & whatever you decide,
please don't write complicated SI to explain what must happen - been there - had the
arguments/debates - reverted back to common sense.
The above paragraph is now in the club SIs, I suspect that no OOD actually does it, but everyone is
happy (I think)
Regards
Ralph
···
-----Original Message-----
From: davenow@eircom.net [mailto:davenow@eircom.net]
Sent: 10 June 2005 08:53
To: sailwave@yahoogroups.com
Subject: [sailwave] Average Lap Racing
Good Morning All,
I'm scoring a Multihull event with a single handicap fleet.
The fast boats will do 3 to 4 laps of the course and the slower ones 2 to 3.
I've used the laps on sailwave before and it all works well. But any suggeations of an easy way to
implement the adjustment as recommended in the RYA document on Average Lap Racing shown below, or
will I have to just do it by hand.
Regards
Dave Vinnell
Galway Bay sailing Club
"When boats with the same PN complete different numbers of laps, those sailing fewer laps may have
average times less than those sailing more laps. In such a case the Same PN Adjustment shown below
should be applied. The adjustment increases proportionally the times of those boats sailing fewer
laps.
The same PN Adjustment should be applied if a boats corrected time is greater than others with the
same PN which have completed fewer laps. The adjustment is applied only to the group of boats with
that PN. Boats completing one lap fewer than the leading boat in the group will have their Corrected
Times adjusted thus:
Modified Time = Corrected Time x Multiplier
Multiplier = Slowest x (Fastest Laps -1)
About-to-Finish Time x Fastest Laps
where:
Fastest Laps is Actual Laps completed by the fastest boat in the group
Slowest is the Elapsed Time of the slowest boat, in the group, to
complete Fastest Laps
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