Tig Spijkers wrote:Hello Jane,

Thank you for all the information.

I don't want to sound to silly, but the first time I saw these numbers I was confused.

This should go under FAQ's I suppose

Am I supposed to multiple the lap times with the handicap number?

I know the answer is yes, but I also know many sailors are not aware what to do with the numbers.

Hi!

Sorry I'm posting this stuff piecemeal; I'm sure its confusing.

I'm in the process of setting up new webpages specifically for Madaket PHRF Hotlaps, which should make everything a lot easier.

A discussion of Madaket 2009 hotlaps is

here.

You can get the same details by clicking the chart display at the madaket raceline.

That gives you a copy of the chart and details on how to use the line and web display board. It's actually pretty simple.

To learn more about PHRF and the 2008 hotlaps, go

here for detailed summary of the results.

If you want to see the 2008 discussion, there are twelve pages

here.

You asked a specific question, however; how to use the handicap numbers. Here's how:
1. Let everybody race the way they always do (grin). They all have finish times.

2. Take the most recent Handicap list. I've posted it below from last year.

3. Multiply each boat's finish time by the 'handicap factor' for that boat class. That gives you a new, 'corrected' finish time.

4. Use the corrected finish time instead of the actual time.

For example: Three boats race, a Tako3.3, a Tahiti Ketch I, and a Tetra 35v1.2. They all cross the finish line together with a time of 03:00. Who won?

Change 3min to 180sec in order to make it simple,

then find that boats 'handicap factor' on the table. Use the last column labelled PHRF with numbers in red. All the other columns just show where the numbers came from.

Now multiply each boat by its correction:

TAKO:
180sec * 1.35 =

243sec
Tahiti Ketch I:
180sec * 0.86 =

155sec

Tetra:
180sec * 1.12 =

198sec
Thast gives you

corrected times for the boats. The boat with the fastest time wins; that's the Tahiti Ketch I above. That makes sense; any Tahiti Ketch skipper who can cross the finish line together with a TAKO deserves to win; its a much slower boat.

Unfortunately, many boats were not around for testing last year and are not on the list. That's why we're repeating everything now in Madaket. The madaket line numbers and handicaps I posted this moring are VERY preliminary and almost certainly will change as we collect newe data. So PLEASE use the numbers below if possible. If you absolutely need a number for a new boat, grin... hold your nose and use the table from this moring. By next week the numbers will be much more stable.