Breakthrough Ironman Performance
For an experienced athlete that wanted to take 30-45 minutes out of his IM time -- the path from decent AGer to top Pro. First, I'd have him do at least one year of the protocol that I outlined in my elite base // probably more like three.
In the second (or third or fourth) year that we were working together, I'd build overall endurance to the point where he (or she) could handle six weekends (out of, say, ten -- with three being easier and one being a Half IM). Six weekends like what I'll outline below. The runs wouldn't all be this tough but it gives an idea.
The specific prep would look like this -- NOT recommended for athletes that aren't already at the top of their AG and have deep base. This is the sort of training that ends a season when you don't have the base to support and absorb it. In fact, this is why so many people underperform at races, get injured, fry themselves... they are doing this type of training without having spent the long apprenticeship required to absorb it.
Day One -- Freshen up a bit, nothing hard.
Day Two -- Eat today to train tomorrow
Swim 5K
1K w/u
1K fast
500 mixer
5x400 on 20/10/5/10/20s RI (fast, mod-hard, steady, mod-hard, very fast)
500 c/d
Bike 5:30 ride time
Be smart, stop for fluids
One Hour, Just Ride
One Hour Easy cadence >=90 rpm
@ 2:15 ride time -- 45 mins IM watts
@ 3:15 ride time -- 45 mins as (3x) 12/3 -- 12 mins IM watts; 3 mins HIM watts
@ 4:15 ride time -- 45 mins as 15 mins @ IM watts and 30 mins @ HIM watts
Get home recovery drink immediately
Run 30 mins easy
= 7:15 training day
Day Three -- Just the run and an easy swim
Long Run, 20 Miles
BIG DRINK to start
4 miles easy
DRINK
Pattern is 3x5 miles with the last mile always easy
DRINK after each 5 miles
#1 -- 2 miles Steady; 1 mile Mod-Hard; 1 mile Steady
#2 -- alt 1 Mile Mod-Hard with 1 Mile Steady
#3 -- 1 Mile Steady; 3 Miles Mod-Hard
RECOVERY DRINK then
1 Mile easy
Steady = goal IM pace -- average
Mod-Hard = actual HIM pace -- average
GOAL -- be strong for #3
Be smart, adjust for hills -- don't go deeply anaerobic
Good form, stay smooth
LATER -- easy swim
Day Four -- Needs to be an easy day to absorb training
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To give readers something to shoot for... I averaged 300w for all my main sets one Saturday, then went 2:02 for the 20 miler on Sunday (stopping my watch every 5 miles for a big drink). Kept my HR 10bpm under FT for all the last sets, 15-20 under for everything before the last sets. Many could match the watts/pace -- few could do it at a similar %age of FT and the only way you get that kind of fitness is volume over time.
Combine that with 2.5 years of high volume, endurance focused training and you get superior race fitness.
BUT! We still need the humility on race day to get that fitness to the finish line. Even some of the fittest athletes will beat themselves within the first five hours of their day. Smart elite race strategy counts on an element of that.
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Most people are unwilling to build the base to properly absorb that training and most people don't have the patience to wait and allow the workout to become difficult.
That's how superior preparation can compete very well. On my best weekend using this protocol I did the equivalent of a sub-9 Ironman. I then backed that up with a further 3-4 weeks of challenging training. It's all in my log from last July/August.
Most people aren't willing to invest three years of their lives to underpin ten weeks of training. My multi-year investment was a lot of fun and I didn't realize the big picture until I was looking back and figuring out how I got so darn speedy (about 30 mins faster than I ever thought possible). That's the benefit of receiving guidance from one who's walked the path before (Molina in my case).
Putting this another way
>>>in order to have the durability, economy, efficiency and constitution to do the IM power/pace training that we think we need to do... the safest way is to do a lot of training at lower power/pace.
>>>to survive a "proper" 18-22 hour focused week for an AGer -- or a "proper" 28-32 hour focused week for an Elite. Then you need to be able to survive (if you wanted to) that base level of volume plus 8-10 hours. Without that ability in your constitution, you'll always be simply struggling to absorb the volume of your basic week, let alone the training.
There's also something about those easy hours that seems to work for Ironman. The easy training appears useful -- and I wish I could explain more clearly other than constantly saying "it just works, keep it simple, JFT".
So there's nothing special in the sessions themselves. They are just workouts -- maps that can help guide us to where we need to get to. Some like to keep training sessions secret, that might work for them -- but the real self-knowledge comes from knowing that you've done the work over a long time. It's having the ability to stack week-after-week-after-week... swimmers are a fine example of this commitment to long periods of work.