AoPS Wiki talk:Competition ratings
12 April 2015 (djb86): Would it be helpful to have the scale first, and then the competition ratings? 29 Oct 2020 (jasperE3): The links for 'early AMC problems' and 'China IMO Team Selection Test' don't work. 24 Nov 2020 (ThisUsernameIsTaken): We should add COMC to the list.