20wk or 12 wk Plan vs. Cont. OS?

Michael Johnson

Obviously when you switch from the OS/Transition to the IM plans there is inc. volume (less rest)

Is it better to continue the OS up to the 12 wk IM plan start time (with inc. rest and hopefully inc your VO2 run pace and FTP bike power) or is it better to start at the 20 wk out point (with it's beginning emphasis on the endurance component)?

What have some of the experienced folks found out?

Does, after 12 weeks, the endurance component get as good as you can get it for race day?(as opposed to the endurance fitness that a 20 wk plan has to offer)

Just planning ahead!

mattsull

I would stay in the OS so you can continue to make big gains. 12 weeks is plenty of time for a build up to an IM.

Keith Wick

I agree with Matt. 12 weeks and you'll be fine.

kurshing

12 weeks...the 20 week plan is kind of set up like 8 weeks of OS and then a similar 12 week build anyways (I believe that is the way it was prior to this year at least, and I would think this year hasn't changed much in that respect).

mgraffeo

Generally, I agree with what has already been said. It does depend on your previous experience with long rides/runs and building up to 3-4 hour bikes and 2 hour runs quickly. Last year, I don't think I could have handled it, took a longer general prep build up. This year, I think I could.