JMT High Sierra Hike

Has anyone ever hiked from Mammoth Lakes to Tuolumne Meadow in Yosemite?
Its ~34 miles.  I would like to run it in one day, sometime in August/late July, could use some 1st person intel. 

http://www.everytrail.com/guide/john-muir-trail-tuolumne-to-reds-meadow.

Nice. Ultra runners are insane.

Have you gone this distance before???

GF and I do a lot of shorter hikes all over.  I think part of the trails we were on this past summer in the June lake area border those trails.  Some of those trails bust 10K feet.  I am on the closer side of 50, and I hike a lot, and it kicked my tail section (99% below 5000 feet).  That said, most of that trail you may have to yourself.  Bring a lot of water, and something to filter water with as there are some places up there where you could find water, but play it safe and have the capacity to to either boil it or filter it. Also it can very, very windy up there, be prepared for it.

I have. What do you want to know?  It is high, beautiful, crowded, and there is water everywhere. You don't really need to pack a lot of water in that section. A small camelback and a filter will be fine.

OK, the water thing is covered, knew there was tons of treatable water so I'll only be humping 1.5L + filter/pills.
I'm wondering primarily about terrain and footwear.  Also bug out points in case things go awry. 

By July, I should be good on the distance and the total net vertical gain/drop.  I'll probably be trail running/hiking Skyline to the Sea (yeah, the whole thing) in two weekends if anyone's interested.  The JMT altitude might be a factor, but would consider prepping with a shot of Procrit. 

There is a bugout point to Mammoth early on, but other than that not really.  Consider camping and hiking around TM for a couple days, take in some hikes to Cathedral, Glen Alun, and acclimate.  Or do the same at Reds Meadow.  THere is a great campground there with a spot just for hikers.  The showers are piped in hot water from a hot spring.  The trout fishing is so good that you see little kids walking around camp with stringers of trout.  Devil's Postpile and Rainbow Falls are must see spots. 

I did see a large bear there with his head burried in a Costco sized box of Cheez-Its, so be careful what you leave lying around camp.   

 Jackie and I backpacked it last year,but we went north to south then back to the north.We only went 6-8 miles a day but we saw some of trail runners along the way.Donahue Pass is the most difficult section with elevation at about 11,000 ft. From there it's almost all downhill through Lyle Canyon back to the trailhead.Be sure to get a permit asap because they limit the number of people on the trail and rangers ask to see if you have one or its a steep fine.There aren't any exit points or short cuts along the way so be prepared!I wear good hiking boots with good support in the ankels but saw everything from flip-flops to tennis shoes.I use a Gravityworks water system that is pump free and gives you 4 lts. of water in 2.5 min.!No pumping and tastes great! I would camp at Agnew meadows and leave from there but Reds meadows has a restraunt and supplies,showers weren't working last year but maybe the're fixed.
If you leave from Mammoth you have to get a taxi to the ski area and then the shuttle to your starting point so figure that out before you go or most of your a.m. will be shot. Just a tip....

ANIMAL!!!!!

I would reconsider leaving Mammoth and look at going north to south,especially if you are going to do it all in one day! BRUTAL day hike! Plan ahead and be aware of permit issues.Good luck...Just a tip