Hey Pat,I try and replicate hot conditions in my training,I live in SW FL so when I head out for a bike/run at 3:30 it's usually 90 something and humid.I raced this past weekend in Englewood it was a delightfull 82 degrees!!I prefer Gatorade on the bike too I'll need those electrolites on the run,best of luck,Mike

I agree with mjm.  I don't use much sunblock since I have to get up so early to avoid the heat.  I might put some on for races if I'm at high altitude or think I'll be out during the mid-day sun. Same for training.  I'm curious what other's thoughts are on sunblock.

I agree that training to fit expected race conditions is best (if uncomfortable). I live, train, and race at altitude (7,000 ft) so sunscreen/sunblock is important year-round. Not to be a salesperson, but I have used Rocky Mountain Sunscreen for years. As to blocking pores, here's what they have to say:

http://www.rmsunscreen.com/whyrms.aspx#BONDINGBASEDIFFERENCE

Have fun!

BT