| Breed | Past Assignments | Future Assignments |
| Best in Show | | |
| Sporting | | |
| Brittanys | | |
| Pointers | | |
| Pointers (German Shorthaired) | | |
| Pointers (German Wirehaired) | | |
| Retrievers (Chesapeake Bay) | | |
| Retrievers (Curly-Coated) | | |
| Retrievers (Flat-Coated) | | |
| Retrievers (Golden) | | |
| Retrievers (Labrador) | | |
| Retrievers (Nova Scotia Duck Tolling) | | |
| Setters (English) | | |
| Setters (Gordon) | | |
| Setters (Irish) | | |
| Setters (Irish Red and White) | | |
| Spaniels (Clumber) | | |
| Spaniels (Cocker) | | |
| Spaniels (Cocker) Black | | |
| Spaniels (Cocker) A.S.C.O.B. | | |
| Spaniels (Cocker) Parti-Color | | |
| Spaniels (English Cocker) | | |
| Spaniels (English Springer) | | |
| Spaniels (Field) | | |
| Spaniels (Irish Water) | | |
| Spaniels (Sussex) | | |
| Spaniels (Welsh Springer) | | |
| Spinoni Italiani | | |
| Vizslas | | |
| Weimaraners | | |
| Hound | | |
| Afghan Hounds | | |
| Basenjis | | |
| Basset Hounds | Past Assignments | Future Assignments |
| Beagles | | |
| Beagles, Not Exceeding 13 In. | | |
| Beagles, Over 13 In. But Not Exceeding 15 In. | | |
| Bloodhounds | Past Assignments | Future Assignments |
| Bluetick Coonhounds | | |
| Borzois | Past Assignments | Future Assignments |
| Dachshunds | | |
| Dachshunds (Longhaired) | Past Assignments | Future Assignments |
| Dachshunds (Smooth) | Past Assignments | Future Assignments |
| Dachshunds (Wirehaired) | Past Assignments | Future Assignments |
| English Foxhounds | | |
| Greyhounds | | |
| Harriers | | |
| Ibizan Hounds | | |
| Irish Wolfhounds | Past Assignments | Future Assignments |
| Norwegian Elkhounds | Past Assignments | Future Assignments |
| Otterhounds | | |
| Petits Bassets Griffons Vendeens | Past Assignments | Future Assignments |
| Pharaoh Hounds | | |
| Portuguese Podengo Pequenos | | |
| Rhodesian Ridgebacks | Past Assignments | Future Assignments |
| Salukis | | |
| Scottish Deerhounds | | |
| Whippets | | |
| Manchester Terriers | | |
| Manchester Terriers (Standard) | | |
| Toy | | |
| Affenpinschers | | |
| Brussels Griffons | | |
| Cavalier King Charles Spaniels | | |
| Chihuahuas | | |
| Chihuahuas (Long Coat) | | |
| Chihuahuas (Smooth Coat) | | |
| Chinese Cresteds | | |
| English Toy Spaniels | | |
| English Toy Spaniels (Blenheim & Prince Charles) | | |
| English Toy Spaniels (King Charles & Ruby) | | |
| Havanese | | |
| Italian Greyhounds | | |
| Japanese Chin | | |
| Maltese | | |
| Manchester Terriers (Toy) | | |
| Miniature Pinschers | | |
| Papillons | | |
| Pekingese | | |
| Pomeranians | | |
| Pugs | | |
| Shih Tzu | | |
| Silky Terriers | | |
| Yorkshire Terriers | | |
| Bichons Frises | | |
| Finnish Spitz | | |
| Lowchen | | |
| Australian Cattle Dogs | | |
| Australian Shepherds | | |
| Bearded Collies | | |
| Belgian Malinois | | |
| Belgian Sheepdogs | | |
| Belgian Tervuren | | |
| Border Collies | | |
| Bouviers des Flandres | | |
| Briards | | |
| Cardigan Welsh Corgis | | |
| Collies | | |
| Collies (Rough) | | |
| Collies (Smooth) | | |
| Finnish Lapphunds | | |
| German Shepherd Dogs | | |
| Norwegian Buhunds | | |
| Old English Sheepdogs | | |
| Pembroke Welsh Corgis | | |
| Polish Lowland Sheepdogs | | |
| Pulik | | |
| Pyrenean Shepherds | | |
| Shetland Sheepdogs | | |
| Swedish Vallhunds | | |
| Miscellaneous Classes | | |