You can now report your match results without the help of support by:
1) Navigating to your schedule and filtering by team
2) Select past matches
3) Click the match
4) Open the "match results" button in the right corner
5) All games in a match should be reported. For example, if your team wins a best of 5 match 3-2, please enter all 5 games including the two losses to accurately report the match.
Here's a quick gif of the process:
Please note: It is always recommended that your screenshot the result of each game of a match. Coaches submitting results should include screenshots. If your opponent updates the match with an incorrect match result, you'll be able to contest the results with your own screenshots!