AMC 10 A

21 problems here, rated 3.7 to 5.9 on our scale (AMC 10/12 to AIME, harder).

Algebra 9Combinatorics 3Geometry 6Number theory 3

#	Topic	Diff	Type	Year
1	Geometry	3.7	answer	—	open
2	Number theory	3.7	answer	—	open
3	Algebra	3.8	answer	—	open
4	Algebra	3.9	answer	—	open
5	Number theory	3.9	answer	—	open
6	Geometry	4.3	answer	—	open
7	Algebra	4.3	answer	—	open
8	Geometry	4.3	answer	—	open
9	Algebra	4.4	answer	—	open
10	Algebra	4.5	answer	—	open
11	Algebra	4.5	answer	—	open
12	Number theory	4.6	answer	—	open
13	Combinatorics	4.6	answer	—	open
14	Combinatorics	4.6	answer	—	open
15	Algebra	4.8	answer	—	open
16	Algebra	4.9	answer	—	open
17	Combinatorics	5.1	answer	—	open
18	Geometry	5.4	answer	—	open
19	Geometry	5.5	answer	—	open
20	Geometry	5.9	answer	—	open
21	Algebra	5.9	answer	—	open

These are sorted by difficulty within the competition, but they aren't a course. The track is the route through, drawn from all the sources at once.