If your league provides you with an iCal file, you can import all of your games at once through these steps:
1. Download iCal File from your league (should end in '.ics')
2. Visit www.teamlinkt.com via the web and log into your account
3. Press the 'Schedule' tab
4. Press the 'Add/Import' Button and click 'Import Events'
5. For Import type select 'iCal via File'
6. Upload your iCal file from your league