Jefferson's accomplishments include:
- 13 Best in Shows
- 166 Group placements - 74 Group Firsts
- 14 Specialty Best of Breeds
- 2010 Top Twenty Winner
- NCA's Top Producing Sire in 2008
1st 9-12 Puppy Dog and Reserve Winner's Dog - 2004 National Specialty, under breeder/judge Soren Wesseltoft
Best Puppy under Breeder Judge Anne Parsons, June 2004
First BISS win, June 2005
Best in Show, St. Lawrence Valley KC, June 2006
Best of Breed at Westminster, February 2007
Group 1st, Old Dominion KC, April 2007
Best in Show, Plainfield KC, May 2007
Best in Show, Ladies Kennel Association, May 2007
Best in Show, Greenwich KC, June 2007
Best of Breed, Mid-Hudson KC Specialty, June 2007
Group 1st, Salisbury KC, November 2007
Group 1st, Charlottesville KC, May 2008
Best of Breed, Mid-Hudson KC Specialty, June 2008
Group 1st, Mid-Hudson KC, June 2008 - enroute to Best in Show
2008 Top Producing Sire
Best of Breed, Mid-Hudson KC Specialty, under breeder/judge May Bernhard, June 2009