[Rhodes22-list] IMF PHRF and Portsmouth Ratings

[Peter Thorn]

Wally and Mark,

The best way to get a nice (high) Portsmouth number for the Rhodes 22,
either IMF or standard, would be to race a lot and finish very poorly.  So
Wally, you'll just have to slow down, or you're going to mess it up for the
rest of us!  :)

US Sailing takes actual racing results and computes Portsmouth numbers by
comparing the finish times of boats with little data to other boats with
more data - if that makes any sense.  The Thistle is the benchmark boat, so
it's number is always 80.0.  Every other boat is subject to change by
comparing racing results to boats with larger data bases.  The Portsmouth
Yardstick system assumes all boats are sailed by good sailors - in reality
not always the case.

A few years ago in our club that sails on the NC/VA border at Kerr Lake,
some Lightning sailors didn't like the fact that our smaller and slower
Tanzer 16s consistently beat them in light air.  Our boats were lighter, so
in the puffs we could out accelerate them and get inside at the marks.  So,
they sent data to US Sailing and the Tanzer 16 D-PN was actually lowered
from 100.0 to 97.5!  The fact that our Tanzer 16 fleet was very competitive
(including 3 past National Champions) and the Lightnings weren't even top
rated in their district was not considered by US Sailing.  The Portsmouth
Yardstick isn't perfect, is just all we've got.

My old friend and USSA Regional Race Officer Herb Bodman says it quite
succinctly, "Handicap racing, compared to one-design, is like kissing your
sister".

Fair winds,

-PT





----- Original Message ----- 
From: "Mark Kaynor" <mark at kaynor.org>
To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
Sent: Monday, April 05, 2004 6:02 PM
Subject: RE: [Rhodes22-list] IMF PHRF and Portsmouth Ratings


> Wally,
>
> I've researched this pretty thoroughly (hoping for a better number, too)
and
> was unable to find anything.
>
> Mark
>
>
>
> -----Original Message-----
> From: rhodes22-list-bounces at rhodes22.org
> [mailto:rhodes22-list-bounces at rhodes22.org]On Behalf Of Wally Buck
> Sent: Monday, April 05, 2004 5:42 PM
> To: rhodes22-list at rhodes22.org
> Subject: RE: [Rhodes22-list] IMF PHRF and Portsmouth Ratings
>
>
> Mark,
>
> Yes our club is using 98, same as the link you sent. I have see this
> previously but I was thinking this was for standard main. i was hoping to
> see a rating for IMF.
>
> Wally
>
>
> >From: "Mark Kaynor" <mark at kaynor.org>
> >Reply-To: The Rhodes 22 mail list <rhodes22-list at rhodes22.org>
> >To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
> >Subject: RE: [Rhodes22-list] IMF PHRF and Portsmouth Ratings
> >Date: Mon, 5 Apr 2004 16:25:22 -0400
> >
> >Wally,
> >
> >Oops! I guess they did - it's in the 2003 list now, too -
> >http://www.ussailing.org/portsmouth/tables03/tables03off-3.htm
> >
> >Mark
> >
> >
> >-----Original Message-----
> >From: rhodes22-list-bounces at rhodes22.org
> >[mailto:rhodes22-list-bounces at rhodes22.org]On Behalf Of Wally Buck
> >Sent: Monday, April 05, 2004 4:19 PM
> >To: rhodes22-list at rhodes22.org
> >Subject: RE: [Rhodes22-list] IMF PHRF and Portsmouth Ratings
> >
> >
> >For those who race with IMF (or anyone else) I need some help. When I
first
> >started racing in my club they asked me what my PHRF was and I told them
> >290. Well we had three races that day and I won all three in B fleet.
They
> >looked up the PHRF scores in some book and the only rating they could
find
> >was 270. I tried to explain that was for standard main and i have IMF but
> >no
> >dice. They said prove it. Well I never could find any record of PHRF
rating
> >for R22 (or Continental) with IMF so it never got changed.
> >
> >This year they changed to Portsmouth to allow for more flexibiltiy in
> >rating. Portsmouth allows adjustment for sailing solo, wind conditions
and
> >so on. Does anyone know of a Portsmouth or PHRF rating listed on line or
in
> >a book for the IMF Rhodes.
> >
> >Thanks,
> >
> >Wally
> >
> >
> > >From: "Wally Buck" <tnrhodey at hotmail.com>
> > >Reply-To: The Rhodes 22 mail list <rhodes22-list at rhodes22.org>
> > >To: rhodes22-list at rhodes22.org
> > >Subject: RE: [Rhodes22-list] Interesting stats
> > >Date: Mon, 05 Apr 2004 16:08:53 -0400
> > >
> > >Mark,
> > >
> > >As I said in an ealier post, it is going to be one long election year
> >....i
> > >am going to TRY no to post any more regarding Iraq. It is pointless and
I
> > >feel it is getting a little mean spirited.
> > >
> > >Wally
> > >>From: "Mark Kaynor" <mark at kaynor.org>
> > >>Reply-To: The Rhodes 22 mail list <rhodes22-list at rhodes22.org>
> > >>To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
> > >>Subject: [Rhodes22-list] Interesting stats
> > >>Date: Mon, 5 Apr 2004 14:53:52 -0400
> > >>
> > >>All,
> > >>
> > >>I just moved all the political email from 1 April through early this
> > >>afternoon into a separate folder. In the process, I found the
following:
> > >>
> > >> >From 1 April through 2:30 today list has delivered 306 pieces of
> >email.
> > >>Of
> > >>these, 143 were of a political nature, 23 were related to sailing and
> >the
> > >>rest were about computers, jokes, and other non-sailing, non-political
> > >>stuff.
> > >>
> > >>By my math, that's just over 8% sailing-related to just under 92%
> > >>non-sailing related.
> > >>
> > >>Mark Kaynor
> > >>
> > >>__________________________________________________
> > >>Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> > >
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> >
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