And not so Easy.
teambarakais not easy; she's not that kind of girl
I tried and tried, tried hard, but I could not talk teambaraka  into removing her shirt at the back of my parked car in the pitch-black parking lot!

We'd been talking earlier in the week about dehydration, water loss on runs (and its effects), so I thought it'd be fun to actually do a sweat rate test again. I pretty much constantly monitor my weight, pre-workout, post-workout to see what state of dehydration I'm in, but hadn't recently taken exact measurements. I usually keep my scales in the garage anyway, to measure myself pre- and post- 'hood runs or rides from home. I popped the scales into the trunk and had them ready at Barton Springs Pool parking lot when teambaraka  arrived. A sweat rate test calls for weighing yourself before and after a timed workout, bistromathing the fluids consumed during that time (yes, and, I suppose, bathroom visits) and getting a sweat rate (the sweat rate calculator I still use is the one that anricat  's Roger made for her/them). Ideally, one doesn't want to weigh sweat soaked shoes, shorts, shirt, socks post-run, so, again ideally, one doesn't want to weigh that clothing dry beforehand either. Hence, ideally, a "near naked" weigh-in pre- and post-. The neekeder the better, scientifically speaking, you understand.

"Shoes off"

"h-okay"

"Are you wearing a jog-bra under there?"

"Uh?"

"T-shirt off"

"No!"

"You really should ... to get accurate numbers"

"No"

"Oh, go on, just quickly ..."

"No"

"Oh, please ..."

Wasn't happening! I probably never had any moves back in the day anyway, whatever I may have possessed gone rusty, never had any wiles. But it was clear I wasn't going to talk that shirt into coming off. C'est la vie. Recover, maintain dignity and move on.

She was a nice round number, Xlbs (rounder on my scales than hers at home). Maybe a smidge under. Immediately after the run X-2lbs. During the 102 mins run we'd both consumed ten of those RunTex water-stop cone-cups, each 4oz. -- a total of 40oz of water. For drinks at the water fountain/s I had carried our cone cups, nested, my finger stuck in mine to hold them, so that we could accurately measure our fluid intake there as well (no, I didn't accompany her into the restroom to measure fluid outflow too, we both drew the line there). So, 4 water stops, over the course of 11 miles, over 102 mins, drinking 40oz, left her 2lbs lighter, so 32oz shortfall of fluid. Next time: drink more, nearly double.

Me? My numbers? I don't have them. Or, at least, I have numbers, am somewhat disbelieving of them, will try again another time, but mainly I can't remember my pre-run weight, nor whether I was wearing shoes for the weigh-in. But it looks like I lost way more than 2lbs! And that's OK, I usually drink what I drank today plus one and partial refills of my CamelBak waist-pack 28oz's so I knew today I'd be running a deficit. :(