NOTE: The newly trimmed replay takes about three times the duration of the video to process; until then, your existing replay is still available for fans to enjoy.
Log in to the website.
Click My Channels > Channels You Manage.
Click the desired team.
Click the Replays tab.
Locate and click the desired replay.
Click the three horizontal dots icon > Trim Video.
The Blue Rectangle controls the replay's length. You can click and drag the rectangle's ends to adjust the length, or you can manually enter the start and end times.
Click Save.
Click Save to confirm.
You can also set a new trim setting by clicking Trim Replay again, which opens the original full video to adjust the trim. You can only have one trimmed replay file at a time, and once processed, the newly trimmed file replaces the old one.