Please note that if you went up an age gp on 1 Jan 2020, this will not be reflected in your results until the end of the League in May 2020. Competitors remain in the age gp they started the league season in, so an M21 remains as M21 until end of the league season, even though they became M35 on 1 Jan 2020 under BOF age gp rules. The only exception is anyone starting in the league after 1 Jan 2020 who can run in their new age gp. This ensures consistency and those in the older age gp are not disadvantaged by having people use scores in their class from a younger age gp.
For any one off competitons, such as the MLS Indiv Champs or Relays or Harris competitors can use their new age class.