Your first news reminds me of this one from Spain:
Volleyball Federation prevents a girl with Down Syndrome from playing the Cup
The Royal Spanish Volleyball Federation (RFEVB) prevents a 14-year-old girl with Down Syndrome from participating with her team in the VII Spanish Children's Cup because she is one year older than the players in her category, despite the support of her club.
The girl, Laia, has been playing since 2011 with the same team of the Esplugues Volleyball Club of Barcelona, which has proposed to the federation to give all their games for lost in exchange for allowing her to participate with her teammates, as explained by her mother, Marta Montserrat.
The big difference I see with this one is that the young lady, despite Down syndrome is older than her competition. Just like I don't think I would be allowed to compete in a younger age group when I was that age either.
Granted, I don't think she has an unfair advantage and this instance sounds more like they are adhering to the rulebook. Did they still not allow the young lady to compete even after her team proposed that they would accept a loss in all of there games despite the outcome?
Her team would accept lose all games only to allow her to play.
Haven't heard about this case but it looks like there are problems everywhere.