The BBF have confirmed the schedule and locations for the Seniors and Women's National Baseball Championships to be held in September 2021:
|Single A: Wildcard||Sunday 5th September||Grovehill Ballpark - Herts Baseball Club|
|Single A: Semi-Finals and Final||Saturday 11th/Sunday 12th September||Somerdale Pavilion - Bristol Baseball Club|
|Double A: Semi-Finals and Final||Saturday 4th/Sunday 5th September||Westmoreland Drive- Bracknell Baseball and Softball Club|
|Triple A: Wildcard||Sunday 5th September||Grovehill Ballpark - Herts Baseball Club|
|Triple A: Semi-Finals and Final||Saturday 11th/Sunday 12th September||Williams Field - Kent Buccaneers Baseball Club|
|NBL: Semi-Finals and Final||Saturday 4th/Sunday 5th September||Finsbury Park - London Mets Baseball and Softball Club|
|WBL: Semi-Finals and Final||Saturday 18th/Sunday 19th September||Waterhall Playing Fields - Brighton Baseball Club|
Single A Format:
Winners of 'South', 'South East' and 'Central' will face the runners-up of the same three divisions on a seeded basis in wildcard games. Three winners advance to the Semi-Finals. 'Severn' and 'Wessex' division winners will decide the winner of the South West Baseball League and make it through to the Semi-Finals, on a seeded basis.
Double A Format:
Winners and Runners-Up of each division will go through to Semi-Finals on a seeded basis.
Triple A Format:
Winner and Runner-Up from 'South' division and Winner from 'South West' division advance to Semi-Finals. Wildcard game between 3rd place in 'South' and 2nd place in 'South West' held to find the last team to go through to the Semi-Finals, on a seeded basis.
Top 4 teams enter Semi-Finals on a seeded basis.
Top 3 teams from England division and top team from Scotland division go through to Semi-Finals on a seeded basis.