Just Not My Day

Often the hardest part of a run or race that dosen't go to plan is having to sit down and commit it to writing,in running as is in life you have to take it on the chin,dust yourself down and get on w/ it.
Why I could only muster a 17.16.81.chip time{gun time has me at 17.20}is still beyond me,was I as flat as the course?is 5k above my distance?did I just have an off day? or did I just get my race plan all wrong?
I'm leaning towards the latter,my 1k and 1mile target times were 3.14-5.24 but I went through them in 3.09-5.10,my half way split was 8.15,16.30 pace but I just couldn't hold it,my second half was 9.01,just not good enough.
Post race it was suggested I build some milage base,there's merit to that,the clocks going back will nix any evening bike rides and it's going to get too cold to do the long ride on the weekend so maybe it's time to get back out there on the weekend and log long runs,start off at 6 miles and work off of that.
Will there be any other attempts at my 5k pr?not in the forseeable future,I recall coming off my stress fracture and trying to get a spot on the Masters 3,000m Invitational at the Olympic Trials and failing miserably at Indoor Nationals,rather than carry on I cut my losses and refocused on the 800m/1,500m,by seasons end I was runner up in the 800m and winner in the 1,500m at Nationals so w/ phase three of my training about to get underway it's time to get refocused and think about the upcoming indoor season.....and who knows maybe w/ some base milage under my belt an indoor 3,000m is on the cards,we'll see.