Actually I'm just glad I got it done. Every time I tried to kick it up a notch, my brain and body were giving me a pretty firm message that really it was fine where it was now - if they could articulate things in words, they would have been saying something like, "You had a warm and demanding 6-hour ride on Saturday, including significant time in zones 3 and 4, then 2 subsequent nights of barely any sleep and 2 subsequent days of feeling fretfully too hot pretty much round the clock! This pace is just fine, thank you very much - you're going to be walking a lot of that Ironman marathon anyway!"
I just did loops in the shadier upper bit of the park near me - it's already 80 out there, there was no reason to go and run in direct sun!
2:00:13, 9.41mi (12:46/mi avg pace, avg HR 132 - zone 1)
(NB Lauren ran the details on our Saturday ride: it was nearly 4,000 feet of climbing over about 70 miles, so that is highly satisfactory.)
I need to make some changes to the schedule as it falls out over the next couple weeks - but right now I need to clean myself up, tidy up my apartment and get out of here before the cleaner arrives at noon!