Rochester's Gwen Jacobson has made a name for herself worldwide in running marathons

Rochester's Gwen Jacobson has made a name for herself worldwide in running marathons

ROCHESTER — There are six Abbott World Marathon Major Age Group Championship races, for ages 65-69. This past year, Rochester’s Gwen Jacobson won her age group in four of them, in Tokyo, Berlin, Chicago and New York. In Boston and London, she settled for second. “I’m pretty competitive right now,” said the 67-year-old Jacobson, whose biggest claim to fame is being the American record holder for a marathon time run by a woman in the 65-69 year-ol…