Pedro Martínez (8-1) pitched his seventh straight double-digit strikeout game, yesterday and defeated the New York Yankees 6-3. This feat was last accomplished by Nolan Ryan of California in 1977. The victory was especially sweet as it was against Major League ERA leader David Cone (4-2), Martínez’s toughest contender so far for the Cy Young award. Martínez said it was a hard game. Martínez allowed 10 hits but only two runs. The Yankees batted at least one hit in each of the seven innings against Martínez. Boston is now in first place in the American League East, one-half game ahead of the Yankees.