Portsmouth Yardstick Calculator
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Results update on this page only.
Base numbers from the RYA Portsmouth Number List 2026. Many clubs use their own locally-adjusted numbers - enter your club's number to override any class.
Race times
Boats and elapsed times
| Boat or helm | Class | PY number | Elapsed time | Remove boat |
|---|---|---|---|---|
Times: mm:ss, h:mm:ss or plain seconds.
Live result
Finishing order
py-results.txt
0 by corrected average lap.
| Position | Boat | Class | Elapsed | Corrected (mm:ss) / lap | Gap to leader |
|---|---|---|---|---|---|
| PY · laps | |||||
| Enter a valid elapsed time and PY number to see a result. | |||||
Lower corrected time ranks higher. Calculations use the editable PY number shown for each boat.
How the Portsmouth Yardstick works
The PY number adjusts elapsed time so boats with different expected speeds can race in one handicap fleet. The lowest corrected time wins.
Standard corrected time
Corrected Time (seconds) = (Elapsed Time in seconds x 1000) / PY number
Average-lap method
Corrected Time (seconds) = (Elapsed Time in seconds x 1000) / (PY number x Laps)
The admin around racing, kept in order
SailHQ does not replace your race results or scoring tool. Keep using dedicated scoring software such as Sailwave for race scoring.
SailHQ handles the admin around racing, including the calendar, series templates and duty rota. This calculator remains a free standalone utility. The race officer page shows how those parts fit together on race day.