Long run advice...

I have done up to 16 miles without water or mid-run fuel. That said, if it is going to be warm, or I am running faster than "easy pace" I will bring a fuel belt that has attachments for two small water bottles and a pouch for a couple of gels.

I don't like the idea of stopping mid-run to find my stashed bottles - that would mess up my pacing.

For my last HM my longest training run was 18km and I ran that fasted and only brought along a little water (there are varying opinions about deprivation training).

I use a race belt rather than pinning the bib to my shirt and it's got loops on it for gel packs. During the race I'll typically use 2 gels....one at about the halfway mark and one at km 16 or so. I don't specifically carb load leading up to the race but I tend to eat 55to 60% of my calories from carbs and my dinner the night before a race is almost always a generous plate of spaghetti. (You can also make your own "gel" out of 3 parts molasses, 1 part honey, a pinch of salt and a tiny bit of water to thin it out a little. A typical gel flask is about the same as 6 gel packs. It's dirt cheap and keeps well so you can make one batch and use it over 2 or 3 long training runs)

If you're thinking of using gels try some during training and then carry your own on race day (unless they're handing out the same kind you trained with) even though I don't usually drink much on training runs I'll have a small amount of water (or sports drink) at each aid station.

Biggest tip (other than following your training plan).....nothing new on race day, not clothing, not food nor drinks.

If it's warm I normally loop back past my house for water on a long run, sometimes have a few jelly babies if I'm trying to coax myself to a longer distance, but I found that works fine for me, fasted or not.

I don't carry water or any fuel for mid run on anything less than 5 miles. Over 5 miles I carry a small water bottle (12oz) and gummy bears which I eat around the halfway point. I wear a running belt to carry it.

anything under 5 miles I leave the house in the am without eating. Over 5 miles and I generally have a granola bar

I'll go up to 10 miles without water/fuel. If you need water for that length of time, it's probably that you're dehydrated before you even start running. I'll carry a handheld for longer training runs, but for races, I'll rely on water tables.

For runs longer than 10 miles, I'll take a Gu about every hour or eat a few Honey Stinger chews. That's what works for me.

I don't fuel unless it's a race or near race pace run. For races I use 2x caffeinated gu flavors and take them early and often.

For hydration if it's cool out I probably won't take any unless it's a really long run. If it's hot I carry two bottles, and only throw one away so if I need I can refill from a water fountain either to drink or pour over my head for a quick cool down.

I have to admit, I'm not up to running a half marathon, only about 9 miles and some of that is walking due to steep hills where I live but I use a camelback. It sloshes around a bit as it empties, but I actually quite like that, it's soothing white noise! That way I can just take a tiny sip whenever I need it, I hate a dry mouth!

I don't bother with water on runs until I'm up to 10 miles unless it's hot or my dog is running with me. I'll bring goo or chews for runs 12 miles or more, though I started this mainly to experiment before my first HM later this month.

For my long runs I like to plan a route that brings me by water sources.I've got an 18 mile run planned for Saturday. I'm running on a paved "rails to trails" trail and planning on parking my truck at a spot about midway between two water fountains. From my truck it will be 5 miles to the first fountain, 5 miles back to my truck, 4.5 miles to the second fountain, and 4.5 miles back. This will give me opportunity for water about every 5 miles without having to carry anything. Stopping to drink on a long run doesn't bother me or screw up my pace because on a long run, I don't care about pace and a one minute stop isn't going to undo all the good from the last 5 or 10 miles of running.

If I do bring a water bottle (I use a Fuelbelt "Crush" because I found it cheap) I'll freeze it the night before so I'll have cold water for most of my run.

Before the run I'll have a slice of toast and peanut butter, though this weekend I'll also wash it down with some protein powder mixed in water for the BCAA's (branch-chain amino acids) which are supposed to aid in recovery.

For my HM race, there are enough water stops that I won't bring anything. In fact I'll skip all stops until after the halfway point. I suspect that the first few may be crowded and I won't need it. I do need to find out what else they will provide an make sure I can keep it down while running. I've already found out that I really don't like chews when I run but goo is no problem (preferably something like vanilla or mocha...no fruit flavors).