2020 USOMO and USOJMO Qualification Indices

What do these cutoffs mean?

After the AIME I and AOIME are scored, the USAMO committee and MAA AMC program will determine the cutoff indexes that will qualify students for USAMO or USAJMO. USA(J)MO qualification scores are determined by AMC 10/12 and AIME scores.

For this 2019-2020 competition cycle, the AMC will uphold this process to determine USO(J)MO qualifiers. Acknowledging that some students may have taken both AIME I and AOIME, both scores will be considered when setting cut-offs for those students. The AIME I and AOIME cutoff scores will be split. The student’s USO(J)MO indexes are calculated as follows:

USOMO Index = AMC 12 Score + 10 AIME I/ AOIME Score
USOJMO Index = AMC 10 Score + 10 AIME I/ AOIME Score

There are many math competitions in the United States. Of those, only

AMC → AIME → USAMO sequence

would take you to the IMO (International Math Olympiad), the highest level math competition for high school students in the world!