[dhab]

I went with a manual-mix approach:

  var boxes = document.querySelectorAll("#root > div > div.sportsWrapper > div.theSport > div:nth-child(2) > input[type=checkbox]")

Then "start", wait for go signal while getting the code below ready on console. on go run the code:

  boxes.forEach(b => b.click())

Got: Time: 0.268