Nice hero pose with the Painted Lady, Jorge. And even though this post initiated in 2007, I would like to continue on the same subject.
Back to Jeff's original question... What is the North to South record for the JMT? I find a lot of information on South to North excursions, but very little on North to South. Yes, it is the same trail, but...
On any "race" course that flows in two directions, there are distinct records for each direction. So it would stand to reason that the JMT should have established records for each dirction. That miserable last night often talked about between Reds Meadow and Tuolumne Meadow would no doubt be different going the other direction - over Glen, over Forester... up Whitney. Think about it.
The only "Fastest Known Time", FKT, mentioned that I have seen in the North to South direction is for the female unsupported record by Jacqueline Florine (http://fastestknowntime.proboards.com/index.cgi?board=pacific&action=display&thread=21) back in 2005. No listing for males going in that direction.
Just as the discussion of where the JMT starts and finishes deals out many opinions, so should this aspect of the "records". What are your opinions? As far as I am concerned, the John Muir Trail’s northern terminus is Happy Isles. But is it the road, as you car-to-car enthusiasts stress, or is it the sign, where all the South-to-Northers time themselves? Does the Mist Trail count? No. What about the trail around Tuolumne Meadows? I say old trail north of the highway. And the southern terminus is at the summit of Mt. Whitney. You don’t have to have a trailhead to have the end of the trail. Car-to-car philosophy works great if you are returning to your starting point. Only yo-yos do that in the case of the JMT. Point-to-point, Happy Isles (the sign, as most do) to Whitney, or Whitney to Happy Isles. If you wanna go Whitney Portal to Whitney to Happy Isles, that would just be a different record. Just as going North to South should be a different record than going the other, more common direction.