Handicapping

Everything you need to know about handicapping a boat to getting a certificate.

Details and instructions regarding Boats and Classes for PHRF-LO.

 

Pictures of PHRF-LO recognized Keel Types.

Guidelines on how to measure a sail and poles for PHRF-LO rating purposes.

Understanding the PHRF-LO One Design Rating process.

Descriptions and pictures of the various propulsion configurations used in handicapping a boat.

Steps and guidlines for filing an appeal of your class handicap with PHRF-LO.

The first step in any appeal of a PHRF-LO handicap is to discuss the situation with your local club handicapper. He/she will confirm whether an appeal is necessary or appropriate and will help guide you through the process.

 

Interested in applying for a PHRF-LO certificate?

Information you need to know before applying.

 


 

Everything you need to know from sending in your race results to understanding the Race Analysis.

 To check the status of your clubs race results submission, click here.

Information about how to send in your results and whether the PHRF-LO office has received your results.

Information & tools to assist when using Sailwave for scoring and submitting to PHRF-LO.

Information & tools to assist when using Quickscore for scoring and submitting to PHRF-LO.

Time-on-Time scoring is not new. It has been widely used nationally and internationally as a valid method to score handicap yacht racing.

The most well known recent use of Time-on-Time was the PORTSMOUTH Handicap numbers, a predecessor to our own PHRF system, which for many years provided an easily implemented handicap system for local racing.


 

PHRF-LO currently recommends using the following A & B values
for calculating the Time on Time multiplier.

A= 566.431

B= 401.431

Formula = 566.431/(401.431+TOD)

Scratch Boat = 165 (ToT = 1.000)


History
At the inception of PHRF-Lake Ontario, Time-on-Time scoring was proposed and included in the PHRF-LO Charter.  Although Time-on-Time scoring is not new, Lake Ontario was, to the best of our knowledge, the first to implement it through PHRF handicapping. Subsequent to the initial inclusion, Charles Kramer of Sodus Bay Yacht Club, a PHRF-LO Handicapper, completed an analysis and derived the following formula based in part on his interpretation of the published results of the original H. Irving Pratt Ocean Race Handicapping project at M.I.T.  This formula was adopted by PHRF-LO in 1985 and represents an improvement over the conversion method that was initially used.

Q = .045
S = Scratch Boat = ASP 171
R = (8.36 x 106) ÷ ((ASP + 384.3)2)
RS = (8.36 x 106) ÷ ((171+ 384.3)2)
TOT = ((1 ÷ √RS + Q) ÷ ((1 ÷ √R) +Q))
or TOT = (685.411 ÷ (ASP + 514.411))

Below is a list of frequently asked questions.

If you cannot find an answer to your question, please contact the PHRF-LO adminstration office.

Thanks,

PHRF-LO


 

To view a list of Handicap changes for the current season, please go to "Class Query" for a link to the pdf.

Information about how PHRF-LO Central council reviews classes, as well as, classes currently up for review.

To view a list of Handicap changes for the current season, please go to "Class Query" for a link to the pdf.