2004–05 Regional One-Day Competition

The naming rights sponsor for the previous seven seasons, Red Stripe, did not renew their contract, and, in lieu of a replacement, the competition was unbranded for the first time in its history.

For the first time since the 1995–96 season, the competition did not feature any invitational teams, with only the six regular teams of West Indian cricket competing (Barbados, Guyana, Jamaica, the Leeward Islands, Trinidad and Tobago, and the Windward Islands).

The round-robin was marked by its evenness, with the top four teams all finishing with three wins and two losses.

[1] Trinidad and Tobago eventually defeated Guyana in the final to win their seventh domestic one-day title.

[2] Leeward Islands batsman Runako Morton led the tournament in runs,[3] while Trinidad and Tobago's Imran Jan took the most wickets.