TOKYO. - From one end of Japan to the other, Americans are going native in sports. Soldiers turn up as sumo and archery champions, women employed as court dancers and judo experts. And they're beating the Japanese at these century old sports and arts.
    Air force Lt. Orville W. Elmore is sumo champion of Hokkaido, Japan's northern island. Orville, a wiry 5 foot 10 inch man weighing 167 pounds, won his ornate woven gold and straw bell by throwing 295 pound Chinoyama (Man Mountain), a 6 foot, 5 incher.
    Judo, the more scientific form of wrestling and self-protection, has attracted thousands of Americans. During the last two years, 560 have practiced at world judo headquarters in Tokyo. Others have joined judo clubs at army and air force installations. Eighty-two Americans have gained the first degree black belt and one has won the fifth. Even the first, the lowest of the degrees, is a mark of distinction.
    One of the better American women judoists is Miss Ruth D. Gardner of Chicago. Her instructor is a Charlie Chan type of fellow with a long, thin gray beard.
    Sgt. James W. Curtis of the 5th air force in Nagoya, and Lt. Ben H. Hazar of Los Angeles, one of Gen. MacArthur's intelligence officers, are both studying Japanese fencing. They have acquired cumbersome old Japanese fencing costumes.