From Olympic.org...
Outlook for the Tokyo 2020 Games
Who will the first Olympic champion be?
In the men’s 3x3, Serbia has won four out of the six World Cups since the inaugural tournament in 2012. While most nations have players from five-a-side who participate in 3x3, Serbia has developed the 3x3 game independently, sending professional teams to world competitions and gaining a high ranking so they continue to be the team to beat.
One of the outstanding players from Serbia is the 191cm tall Dušan Bulut of Novi Sad, the winners of the 2019 World Tour Utsunomiya Final. Bulut, the No. 1 player in the world, is known for his outstanding passing ability.
Meanwhile, in the women’s game there is no dominant nation, with five different countries having won a World Cup — the most recent being the People’s Republic of China. For Tokyo 2020, the chance for a spot on the podium is open, so all teams are gearing up to deliver their best performance.
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Seems like this was one of those things the IOC put in to quell the once-dominant American teams. You may not be able to put together a great 5 person team if you're Angola but if all you need is three athletes and play on a half-court.... That becomes a lower bar to clear. I do like a 12 second shot-clock. I wish the NBA and NCAA would have that once the ball crosses midcourt.
As for Lawn Darts, Cornhole, and Beer Pong... I doubt I could go with beer pong but as for the other sports...would it really matter if they joined the Olympics? Table Tennis and target shooting are "sports". Both seem pretty second nature to me.