2019 AP and USACO Dates Ascend E Learning AP Computer Science 2019 >>>>> 05/17/2018 NOON <<<<< See AP exam dates 2019 for all subjects USACO 2018-2019 Schedule Dec 14 – 17: First Contest Jan 18 – 21: Second Contest Feb 22 – 25: Third Contest Mar 29 – Apr 1: US Open (Fourth Contest) May 23 – Jun 1: Training Camp TBA: IOI 2019 in Azerbaijan