For a match to be counted, the results must be submitted for scoring. The winning team is responsible for submitting the results. We’ve attempted to streamline the process as much as possible. If it makes it more fun, you can imagine your in-universe Summoner grumbling about paperwork as you fill out the match submission form.
Submit Results Here
View Submissions Here
You can also look at the raw match submission data to verify that a match has been sent in.