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2 Jun
Susan Hood Trophy Race
Date 06.02.2023 - 06.03.2023
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History of TOT

History

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))

New for 2010

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Last Updated: 30 March 2017

In March of 2010, the Central Council of Handicappers for PHRF-LO looked further into our Time on Time numbers and decided that they would look more closely at the the current scratch boat (presently 177) in our time on time formula.

New for 2009

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Last Updated: 23 February 2021

In November of 2008, the Central Council of Handicappers for PHRF-LO voted in favour of adjusting the Q.Factor in our Time on Time formula to .008 from .045.

New for 2006

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Last Updated: 23 February 2021

In March of 2006, PHRF-LO voted in favour of adjusting all our handicaps by +6 sec/nm.

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