Good advice Steve, but I would like to know what kind of training you did to enable you to extend your sub 3 for 35 years. I'm a female, first marathon 1978 and ran sub three 6 times in those early years. These days, although I still run marathons, didn't go under 4hrs last year! I am 62. Have you kept a diary of your last 12 weeks before your last sub 3.