My easy long run for half marathon training is at 30 Kms??

I haven't used Galloway personally, but I understand that using the run/walk/run method, Galloway does take runners over their target distance in the later weeks of the training plan.

This is different to what most coaches who assume running continuously would prescribe. But discussing and comparing coaching methods is like discussing religion.... 

I’ve seen people ask the same question on Reddit a few times with the Galloway plans so it seems like it’s intentional.

In training for races HM and shorter it’s not uncommon to do long runs that are longer than the race. In physiological terms the benefits you’re looking for with a long run begin at around 90 minutes of running and the point where the ratio between gaining fitness and causing excessive muscle is around 3 hours. So as long as it’s not taking you more than 3 hours to do a 30k run you should be fine as long as the previous weeks of the plan laid the ground work to prepare you for that distance.

It's a slow easy run so can take me upto 3.30-3.45 for this one....it's not a problem for me because next day I am little stiff but I can't really run it faster or don't have problem with doing such distance....it's only the time and what other people are telling me that worries me....haven't had any running Injuries doing this plan either but just wanted to make sure it's not just some bug in the AI of the plan.

I just finished a 14 week half marathon plan using coach Greg, his runs are time based so longest was ~23k based on my easy pace. 30k does seem impressively long for a half plan I must admit.

What was your time goal and how much faster was it then you would have done without the plan...just to give you an idea my target is 2 hours and best previous was 2.26 so I guess the speed increase is why the plans getting so intense for me?

Are you doing the long run as a run/walk? If so it could be that the cost/benefit calculation for going over 3 hours changes a bit. I’m not an expert so can’t say for sure but I don’t think you’ll lose too much by taking an extra 30 minutes to do the prescribed distance nor from only doing as much as you can in 3 hours.

For me the deciding factor would be whether or not I felt that doing the full distance would compromise my next run.

Hi just running it a slow easy run like the instructions in the app....it does help me and does help me get faster and strengthens my legs and muscles up....but my problem is 1- it takes so much time lot prepare and run this and 2- everybody I mention it to says it doesn't make sense to run 30 kms if ur training for a half marathon....

To go over 21k for HM training is common, 30km though is probably more for faster, accomplished club level runners, sub 1:25/sub 1:20 and will probably be running 90 plus km a week.

It would definitely help boost endurance especially in the final 5km of the race. Would a 25km run suffice? Probably. It’s up to you.  

Update : just did the total distance with cooldown warmup it was 31.80 kms, ran at a very slow comfortable pace and took 4 hrs 20 mins....I think the app knows by the data I have put into it that I am really slow compared to most of you who are running and is preparing my body for half marathon by distance and I can see there's a lot of speed and goal intervals coming up soon.....so I guess the reason none of you see these distances in Galloway plan is because you all are much faster and haven't required to do such a long distance...?