Just be consistent, do the swim distance a couple times before just to know in your head you can do it, and focus most all of your effort and time on the bike. Make sure you. have a comfortable fit and know what kind of pace you can do…
Forget about long runs and most run training really. You are not going to run in the race, just a fact of how it goes for most, and certainly those just looking to finish at cutoffs. What would be really helpful is to devise a strategy of a little running, then speed walking. That’s what you want to really practice, getting your walking pace down, and then see how many minutes you can run in-between and still keep going. Maybe like 2 minute jog, then 5 minute walk, something like that. It will seem the walking is too long at first, but go do that for 4+ hours one day and see how it works out towards the end. It is also a time to get in your nutrition without bouncing around, so practice with what you will be using in the race too…
There are pros that have used this strategy in the past, but running between aid stations, then walking the length of them, and then run again, so 26 blocs of walking and still doing around 3 hour marathons…Guessing you will be shooting for 6 to 7 hours, so just adjust the times you do each that you can do for that long…
Most of all, have fun while going after your goals…I’m pretty comfortable with the swim. I’ve never done the full 2.4 miles, but like I said, I actually swim 1.5-2 miles kind of regularly. I’m not fast, but I am pretty consistent. I believe I can hold about a 2:30/100m for the entire distance. If I’m right, that gives me a swim time of approximately 90 minutes. That’s a long time, but I can do that. And that, in theory, should get me through T1 and onto the bike by 9:30am.
Also like I said, I did the 112 mile bike ride earlier this year. I actually have a course mapped out around my town that very closely mimics the bike route for IMAZ, to include elevation. My target is to finish that ride in <7 hours, and that includes stopping at each turn around for about 5 minutes for hydration and nutrition. When I did the ride earlier this year, I finished it in about 6:45, and that was even with a couple of stops in excess of 15 minutes. Also, that was on my Shiv. I have discovered I can hold a faster pace longer on the P2 I picked up a couple months ago.
The “run” is the only thing that really scares me. I’m an awful runner now. Hips and knees are too old and crunchy. There was a time (25 or 30 years ago) when I could hold an 8:30/mile pace for a couple hours quite easily. Today, I’m lucky if I can maintain a 10:00/mile over a stand alone 5k. Add a run to the end of swimming and biking and my pace rapidly drops into the 15:00/mile range.
I will say this though. Prior to signing up for IMAZ, I took a drive down to Phoenix (it’s only about 300 miles from me) and rode one loop of the bike course and then ran 6.5 miles of the run course. So I at least have an idea of the course ahead of me. I do plan on a run-walk strategy, although I’m not really sure about my intervals right now. I think I’m going to mostly walk except for the down hill sections, in which case I’ll “run” (light jog pace) and just carry that momentum as far as I can.