So in most triathlon training programs swims are distance based, and bike and runs tend to be time based. For example this plan
I am decently fast on the bike, but really slow on the run. In my HIM coming up I expect to complete the bike between 2:15 and 2:30 and this training plan has several bikes in this time frame, so no problem.
However, on the run, I am hoping that I can complete it in about 2:30, although I doubt I will. It will probably be close to 3 hours after the other two events. 11:27/mile gets it done in 2.5 hours, and the three hour mark would involve some walking.
Ignoring my slow speeds for a moment, this plan has the longest run of 1:30. To finish a half marathon in this amount of time, we are talking a pace of 6:52/mile, kind of blistering especially for a guy my age.
So my questions are:
Why are the runs for most tri training programs time based?
Why are the short in relationship to the bike?
Should I adjust up my running time or even do some distance based running?
What should be my long run when training for a HIM?