[1] In November, winger Harold Buck became rugby league's first £1,000 transfer when he moved from Hunslet to Leeds.

[2] Oldham had ended the regular season as the league leaders.

Wigan won their second ever Championship this season when they defeated Oldham 13–2 in the play-off final.

The 1921–22 Kangaroo tour of Great Britain also took place during the season, with many of the clubs playing games against the visiting Australasian team.

The 1921–22 Challenge Cup was won by Rochdale Hornets who defeated Hull F.C.