Originally Posted by Quantum2003
There's a pin for first place per school/university as well as a certificate for distinguished honor roll (top 1%), honor roll (top 5%) and achievement roll (at least scoring 15 as a 6th grader or below) respectively. For everyone else, there is a general participation certificate.

All the kids will write the answers down and the kids will usually compare and he will also check against AoPS when they go over the solutions.

Ds has never received a pin it would take a perfect score.