**Boats can compete either under a PHRF certificate, or for those also competing in the Opera House Cup on Sunday August 17, a CRF rating.

Link:

https://www.nantucketcommunitysailing.org/page/nrw/overview_nrwsailingevents/NantucketRegatta

NOR:

https://s3.amazonaws.com/www1.headwaycloud.com/clients/51/uploaded_files/2024_nrw_nor_nantucket_regatta_24_03_29_vJYBPK.pdf