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The Daily Insight

How is PHRF rating calculated?

Author

Christopher Harper

Updated on April 02, 2026

The formula for this is as follows: TOT sec/10m = 600 X PHRF Delta /(550 + PHRF), where: TOT sec/10m is the seconds you must give a competitor for every 10 minute of racing. PHRF Delta is the difference between your rating and a competitors PHRF is your PHRF rating.

What is a good sailboat comfort ratio?

You can use the following guidelines to interpret comfort ratio results: numbers below 20 indicate a lightweight racing boat; 20 to 30 indicates a coastal cruiser; 30 to 40 indicates a moderate bluewater cruising boat; 50 to 60 indicates a heavy bluewater boat; and over 60 indicates an extremely heavy bluewater boat.

What is comfort ratio?

Motion Comfort Ratio was developed by Boat Designer Ted Brewer. The formula predicts the speed of the upward and downward motion of the boat as it encounters waves and swells. The faster the motion the more uncomfortable the passengers. Thus, the formula predicts the overall comfort of a boat when it is underway.

What is Bal disp?

Bal./Disp.: A Bal./Disp. ratio of 40 or more translates into a stiffer, more powerful boat that will be better able to stand up to the wind.

What is a good capsize ratio?

The capsize screening value for any boat is found by dividing the cube root of the boat’s displacement volume into its maximum beam (Bmax). The higher the resulting number is than a value of 2.0, the greater the chance that the boat will be unduly prone to capsize; if it is below 2.0, it should be safe offshore.

How good is the Alberg 22?

The Alberg 22 has numbers that a larger offshore boat would be proud to have. Good capsize ratio (1.9 vs 2.42 for the fin keel Catalina 22 for example) and is heavy enough to be more comfortable as well. Not quite as nimble as other lighter boats but steady and comfortable. Pretty as well.

What kind of boat is the Alberg 22?

The Alberg 22 is a small recreational keelboat, built predominantly of fiberglass, with teak wooden handrails and toe rails, plus other trim. It has a masthead sloop rig, a raked stem, a raised transom, a keel-mounted rudder controlled by a tiller and a fixed long keel. It displaces 3,200 lb (1,451 kg) and carries 1,540 lb (699 kg) of ballast.

Who is the designer of the Alberg 22?

This is an Alberg 22, designed by the same Carl Alberg that designed the Cape Dory Yachts and many others. Classic lines and timeless tradition make the statement for this great full keel boat.

What kind of boat is a Pearson Alberg?

PEARSON ALBERG VINTAGE 1963/RESTORED. This classic sailboat has been completely restored and upgraded. Owner has purchased a larger Pearson and is motivated to sell. Lovingly and Skillfully restored by experienced craftsman and sailor.