zuluru.org

Add a field on the user profile for handedness (right/left/ambidextrous/unknown).

Then, on the team page, include an icon beside each player showing their handedness.

You could use some of these icons:
https://p.yusukekamiyamane.com/icons/se ... yword=hand

right: hand-point
left: hand-point-180
ambidextrous: either hand-ily or hand-horns or hand-finger

Will put this on the todo list, though it'll be a lower priority than a number of things already on there.

Lower priority is obviously understandable.