One point not mentioned is that 12 yr old boys will normally always
have it all over 12 yr old girls.

This decision may just force other sports to take a
look at their policies regarding transgender athletes
participation with females in sport.

Medical experts have made it clear - "Listen to the
science." Especially if the
athletes have under gone puberty. It's pointed out
that:

"Some of the advantages males acquire in puberty are
structural and are not lost with hormone suppression.
These include larger lungs and hands, longer bones,
bigger feet and hands."

Biology trumps gender.

FINA’s trans ban is gaining momentum across other sports, as other sporting organisations or leading sporting figures, like Martina Navratilova, speak out in favour of such bans.

Where are the Greens?
They favour trans gender persons being able to take part in the womens’ events, even if they only think that they are women, no surgery required.

Thanks Is Mise for starting this thread as you said "A win for common sense".

"Biology trumps gender."

Biology IS gender. Gender IS biology.