Tournament
From Future Skill
Tournaments are similar to Challenges in the sense that programmers compete against one another, but there is an important difference. Solutions from participating programmers are run against each other in multiple matches during night time and receive an ELO-rating based on the results. Programmers therefore have to wait until the next day to know how well they performed.
Tournaments are sometimes only active for a limited amount of time. Solutions are entered in the coding Editor.