Findings:
- The Showdown at General Theological Seminary
- MLB Showdown
- Showdown Games
- The Ultimate Showdown of Ultimate Destiny
- Tekki Showdown
- The Tokyo Showdown
- The Big Showdown
- Hollywood Showdown
- ShowDowN PrO
- showdown
If you Log in you could create a "Firebomber Showdown" node. If you don't already have an account, you can register here.