Cohen batted .318 and set an International League record with 59 consecutive errorless games. He had an American League record of 117 consecutive errorless games. He later described the 50-game errorless streak as his biggest thrill in baseball. In 1990, he set a National League record with 63 consecutive errorless games at shortstop. In 1977, he played 62 consecutive errorless games. On September 5, 2014, Blanco made an error that ended his 306-game errorless streak. His errorless streak reached 245 at the end of the season. He holds the American League records for consecutive errorless chances (541) and errorless games (229). He played errorless defense over the two seasons. That season he also continued his skein of errorless games as a pitcher. The errorless games record has since been broken by several players. On June 30, Boston set a major league record of 17 straight errorless games. It also provides a biological basis for errorless learning methods for education and memory rehabilitation. Interest from psychologists studying basic research on errorless learning declined after the 1970s.