I'm consoled by the thought that if you have a choice of which tri discipline to have a bad day at, you pick the swim. As long as you make the time cutoff things can still be good. I felt fine from the weekend workout, and my legs are good, but the swim today was a struggle. Unco-ordinated. Sloppy ineffectual kick that was out of time with my arms. Generally slow and feeble. But I didn't push it, and worked through it, and about 10 laps felt good-ish toward the end of the swim, although still slow.
2K 41 minutes. (covers face and slinks off.)