Long run and 5k race
With no experience to back up my suggestion but my opinion is option #1. Closest to your actual training plan and breaks it up a bit with some speed training (5k). Thats my 2 cents. Good luck with whatever you choose.
"If one can stick to the training throughout many long years, that willpower is no longer a problem. It's Raining? That doesn't matter. I am tired? That's beside the point. It's simply just that I have to."
-Emil Zatopek
I have chosen option #2 in the past. I had no problems with the long run the day after a 5K. In fact, I like to schedule a few long runs with tired legs. I found it even more beneficial for tri training.
If you go with option 1, why wait to run 17 later. Finish, hydrate, and take off for the next few hours. It could be a problem if the 5K is an A race and you are going all out.
I've done option 1 before and from my experience, id recommend doing option 2 instead. But 1 is still quite doable. Id avoid 3 and 4.
-Alan
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Honestly, if you are looking to PR or perform well at the Marathon, just run the 5k as an E run and do you a long Run Sunday. If you try to run 'fast' at the 5k and expect to do a long run the next day, my experience has been it is hard. Again, to me it comes down to how you want to perform at the marathon...but I imagine you have trained 16 weeks or more for it..there are a million 5ks a year..run easy or skip it for the sake of your long run....i skimped on long runs my last marathon and by mile 23 my legs paid the price..still ran well, but was wishing i put in the extra miles!



I have a few options here, and I'm wondering if I should rule any out, or definately use a certain one. The training plan I've been following has my next long run the same weekend as I want to do a 5k. I did a long run last weekend, and this 5k is in 2 weeks. After the 5k, I have 3 weekends before the marathon weekend.
My option:
1. Run the 5k Saturday morning, then run another 17 miles later on Saturday.
2. Run 5k race on Saturday, then 22 on Sunday.
3. Bump long run up one week (14 days after my last long run, and 35 days before the marathon)
4. Delay long run one week (28 days after last long run, and 21 days before the marathon)
This is exactly why I need a coach...