Why do you think you would know? If 100,000 people across Texas went to soccer tournaments and 450 of them got covid over the next 2 weeks, what makes you think you would know about it? Even if all 450 got tested, Texas had over 100,000 new covid cases in the last 2 weeks. How would you find 450 in that sea of over 100,000 cases? Now remember that most cases don’t get tested. How would you find 50 cases in a sea of 100,000 cases?So, do we only know that someone got the virus after a peer-reviewed study exists? Where's espola? This is nonsense. If the soccer activities described by STX above haven't led to a known outbreak it's because there wasn't one. I agree there's more to learn about the virus, but we know all we need to know about the spread from the activity of playing soccer. The risk is low or we'd know by now that it is not. Thank Texas for that.
Unless Texas has a rigorous reporting program for the immediate family of all participants, you and I would have no way to know whether there were 2 or 2000 cases of covid linked to soccer this spring.