For most pools, you can change your entry name directly on your entries page:
Go to your Pool Memberships page
Click on the appropriate pool
Navigate to the “Your Picks” tab
Click the “Rename” link next to the entry you’d like to update
For Squares pools, you can change entry names from the My Pool Memberships page by using the Options dropdown on the right side.
This will ensure your new entry name shows correctly in reports and on the grid.