ACSL Programming contest computer contest
Computers, Programming, Contests, High School - American Computer Science League. ACSL organizes computer science contests and computer programming contests for junior and senior high school students.
https://www.acsl.org/
IOI - International Olympics in Informatics
Computers, Programming, Contests, High School - IOI - International Olympics in Informatics. An official site describing the history of the contest, official regulations, future locations and members in many countries of the world.
http://ioinformatics.org/
ACM Southern California Programming Contest
Computers, Programming, Contests, ACM - ACM Southern California Programming Contest. Southern California regional contest of the ACM International Collegiate Programming Contest.
https://socalcontest.acm.org/
ACM Northeastern European Programming Contest
Computers, Programming, Contests, ACM - ACM Northeastern European Programming Contest. Northeastern European regionals of the ACM International Programming Contest.
http://neerc.ifmo.ru/information/index.html
OpenECG Programming Contest
Computers, Programming, Contests - OpenECG Programming Contest. A programming contest for Electrocardiography record handling applications and tools, using the SCP-ECG Standard.
http://www.openecg.net/