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Go for it!
So, here's what happened. I was supposed to compete in the 100m breaststroke at the competition, against people in my age group (born in 1997 or later), but there were so many people who wanted to participate that they moved me to the previous heat, where I swam with younger kids (born in 1998-1999). My time was still supposed to be counted in my actual age category, so I was competing against people in my age group, but I was swimming in a different heat. But, to my surprise, they gave me a certificate for 1st place among the younger kids (born in 1998-1999)! It's so ridiculous. I should have gotten 3rd place in my actual age group (1997 and older), but instead, another guy got 3rd place. It's unbelievable!