Last time I ran in Phoenix, it was July 2006 and 112 degrees. So what, I figured--just hydrate more beforehand and take extra water, right?
WRONG.
When I was in CA, I was doing 4 miles in 35 minutes. When I ran in AZ, I quit after 3 miles. Do NOT think you can last out there at a 8 or 9-minute pace for long, no matter how good of shape you think you're in.
And that shit ain't nuthin compared to the insane bastards that run the Badwater.