#3 - this is on the right track. But dont like the colours or and font seems a bit generic. The red "O" might be confusing as people may think it is "sportxism"
#6, #5 - the "O" looks too much like a basketball/baseball. We want the logo to be sports agnostic. You might also want to try use an abstract mark before or after (above or under) the wordmark like #2