Sports management system for chess tournament

We need to build website for online chess tournament management.

Register organization or club
1. Register your organization
2. Register players
3. Organize tournaments
4. Manage players ratings

Organize and manage tournament
1. Create tournament
2. Manage players
3. Pairing system for players
4. Finish tournament and evaluate results

Track your progress as a player
1. Register as a player
2. Attend tournaments
3. Track your progress
4. Compare with peers

We need
1. Custom Ratings,
2. Swiss Pairing and Round Robin
3. Editing Pairings
4. Advanced Tiebreaks
5. Adding or Removing Players During Tournament
6. Exports to PDF and CSV
7. Custom Categories
8. Players Invitations
9. Ability to build the export file as per uscf or fide format.
10. Ability to add payment gateway
11. Standard website functionality for admin management