The first two links are for the virtual contests. Participants can start the contest, and the timer for 4 hours will start. They will be able to submit their solutions only during that time. This is something similar to USACO style. In the third contest, you can upsolve problems as long as you want.
According to the EJOI rules, only C++ is supported.
| Year | Day 1 | Day 2 | Upsolve | Results |
| 2017 | Link | Link | Link | Link |
| 2018 | Link | Link | Link | Link |
| 2019 | Link | Link | Link | Link |
| 2020 | Link | Link | Link | Link |
| 2021 | Link | Link | Link | Link |
The results of all contests is available here, and the results of upsolving here.