PR is 3:10 on 55mpw. Was in 2:56-58 shape on 62mpw last winter (1:24 half) then had an injury. This cycle has been an abbreviated buildup, w/only 3 weeks greater than 50mpw and I'm peaking this week at 66. Ran a 1:32:00 half (7:01/mile pace) 5 weeks before marathon day. Race is in 17 days. Today I ran a 12-mile tempo run averaging 7:06/mile. I need to average 7:04 to break 3:05:00 and hopefully get into Boston '18 in the 35-39 age group.
Is breaking 3:05:00 on Oct. 2 realistic? Or should I hold off for a November marathon and continue building up?