The First Season Sire (FSS) class of 2017 based in the UK and Ireland that I have followed in this research include:-

Camelot, Cityscape, Dawn Approach, Declaration Of War, Epaulette, Farhh, Havana Gold, Intello, Lethal Force, Most Improved, Red Jazz, Society Rock & Swiss Spirit

Note that as Declaration of War moved to stand in the USA for his 2nd crop he has been excluded from all crops except the 1st crop.

Average rating of each sire's progeny that has run is plotted against the average mare quality of those runners measured by the mares' own racecourse ratings. Unraced mares and those with two or less runs are rated with the average of the rest of the mares for a particular sire. Methodologies are in place to record ratings for overseas (defined as outside UK & Ireland) runners to maintain consistency as much as possible. The intention is to follow each FSS class for three crops over two or three years to aid identification of those sires that are over/under performing given the quality of mare put in front of them.

You can see the progress of the 2017 class under the tabs attached to this page