SITF has determined this plant to be Brassavola tuberculata (Dec 2022); Brassavola perrinii is considered by Kew to be a synonym for Brassavola tuberculata; see Kew's POWO; although this plant has very large flowers at 10.6cm compared to standard, there are previous awards that have flowers close to this; photos of prior awards closely match this plant, as do photos in the OW and orchidroots.com.