A week ago Early Light and Stocking Stuffer were the most talked about conformation hunters in America as the Washington International Horse Show began. It was Kensington that was crowned the grand hunter champion of the 20th renewal of the show yesterday, however.

Lynne Siegel's 6-year-old bay beauty was reserve champion in the green and regular conformation divisions, an unprecedented double. It earned the gelding the Henry the Hawk Challenge Trophy as the show's top hunter.

Early Light and Stocking Stuffer won their divisions, and Ruxton ran away with the working hunter tricolor. But only Kensington showed in two divisions and piled up 42 points for the title. Lu Thomas rode the Mill Valley, Calif., entry throughout the competition.

John Holmes' Marked Card scored 11 points among the amateur-owner working hunters to grab the tricolor and the Frank Counselman Memorial Trophy. Marked Card was second to Dorli Ruegger's The Bird in the stake class for the Shari Hollis Memorial Challenge Trophy.The three points scored in that class gave Marked Card its winning edge over the reserve list, Terry Haake's Wait For ME.

Ri-Arm Farm's Rain Forest won the Captain Gregory Gagarin Memorial Trophy and a hotly contested junior working hunter class.

There were six classes for ponies in the conformation judging and six different winners. Little Miss Muffet, owned by the Cool Meadows Farm and ridden by Elizabeth Sulter, opened with a victory among the small ponies. The under saddle Class among these 12.2 hands and under competitors was won by Neil [WORD ILLEGIBLE] on Meridian Meadows' Tidy Up.