You must have Admin Level - Email/Print/Calendar access to edit meet results.
Click Events & Competition > Meet Results in the side menu.
Click the Results By Meets tab.
To the right of the desired meet, click Edit.
Edit any of the following fields:
Meet Name
Host Name
Location City
State
Country Code
Course
Start Date
End Date
When finished, click Save Changes.
NOTE: The changes you make are visible to ALL teams with results in that meet, so use discretion.