Hi SUG Members,
The 2025 RYA rating files are now available from the Sailwave website together with SCHRS & SCHRS PY Lookalike files - Rating file library | Sailwave
Great Lakes file has not been updated as new version due mid-March and existing when double checked was latest.
Please see RYA Press Release - RYA Reveals the Portsmouth Yardstick Numbers for 2025 - for full information from RYA but here is a little bit from the PR:
The Portsmouth Yardstick (PY) numbers list for 2025 has now been released with the first changes to the PY mathematic formula in 30 years.
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Evolving with the times…
The world of racing has changed over the years and 2025 marks a significant step in the PY evolution. Working alongside Sheffield Hallam University to evaluate the tool against the current state of participation, this year marks the first change to how the system calculates PY since 1995.
The PY analysis tool applies basic criteria when assessing an individual race: it must have more than three finishers, feature more than one class, and have a race duration of over 20 minutes. From this data, the top 66% of finishers are used to calculate the average corrected time, with only those finishing within 105% of this time included in the PY calculations.
Following a review by Sheffield Hallam University, the RYA has widened this threshold to 110%, allowing the analysis of a broader range of race times. This adjustment enables the PY system to include more data without compromising on quality. Additionally, the tool has transitioned from using the mean to the median in its calculations, creating a more stable platform and reducing the impact of outliers.
The continuous development of the PY online website has also made data submission easier and more accurate, with the launch of the class list in 2024 further improving data accuracy.
“The Portsmouth Yardstick has been a cornerstone of dinghy racing for decades, and these latest updates mark an exciting update of the system. By modernising the calculation method for the first time in 30 years, we’re ensuring that the Portsmouth Yardstick system continues to reflect the changing dynamics of sailing. This is for our racing community and we encourage clubs to engage with PY Online, submit their race data, and take advantage of the improved accuracy and ease of use. Together, we can make racing even more competitive and rewarding for sailors of all levels.” said Adam Parry, RYA Technical Manager.
Kind regards,
Huw & Jon