You recently mentioned the color swatch "'are you sure you're not a spectator' clear" in a race report. Does this imply you have a color palette for checking your urine somewhere? I've had trouble hydrating properly during past ultras so I'd like any help in being proactive with my fueling you can give me.
Urine luck! (OK I'll stop now.)
This handy chart is built on a 4x6 ratio in case you want to print it out and use it to check your pee during a race. No, that won't look weird at all.
Best of luck with your future races,