Eleven teams will compete in the league playing 20 matches each over 22 rounds in the regular season.
At the end of the 2024 season Dewsbury Rams, Swinton Lions and Whitehaven were relegated from the Championship replacing Oldham and Hunslet who won promotion.
[1] In March 2024 the RFL completed the review and announced that the first steps will be taken to equalise the number of teams in the Championship and League One at 12 each by the start of the 2026 season.
After the four rounds have been completed, the top two teams will automatically qualify to play in the 2026 Championship.
The losers of this match and the teams finishing fifth to eighth will play in League One in 2026.