Digging into this:
* Every club had at least one positive test, whether coach or player.
* There is zero mention that every player and coach was tested. What was the positivity rate?
* All positive tests were primarily from siblings. That speaks to uncontrolled community spread. The guidelines will need to be "if you or any of your family show symptoms or test positive, etc etc etc".
* The number of total sessions is not large enough to be statistically significant. "player-sessions" is a worthless statistic. Obviously if two uninfected players practice together they won't contract the virus.
* If you extrapolate positive tests being only a percentage of actual cases, the actual infected rate is somewhere between 2-4% of participants (kids + coaches). That lines up very well with the overall pop infection rate.
I don't doubt that it will be very hard for kids to contract the virus outside but that chart is fairly disingenuous.