I wouldn’t overthink this. Your ten activities on the Common App should be listed with the most significant first, so number ten is probably not going to move the needle regardless of whether it’s a sport or something else. Ten activities is the maximum on the Common App but if you don’t have ten activities worth mentioning, you don’t need to have all ten spaces filled.
I wouldn’t use three of the ten slots for three different sports that you played for a single season each though – I’d suggest just listing one of them. If you’re played a sport junior year and it’s at least conceivable you’d play again this year, you could pick that one to include and show participation as both Grades 11 & 12.