| Youth Camp |
September 7 – 14, 2019 |
| Start of the First Round |
September 15, 2019 |
| SOI-Workshop Programming at ETH Zurich |
October 12 – 13, 2019 |
| SOI-Workshop Programming at EPF Lausanne |
October 19 – 20, 2019 |
| SOI-Workshop Programming at Uni Bern |
October 26 – 27, 2019 |
| SOI-Workshop Algorithms at ETH Zurich |
November 1 – 3, 2019 |
| SOI-Workshop Algorithms at EPF Lausanne |
November 8 – 10, 2019 |
| End of First Round |
November 30, 2019 |
| SOI Day |
January 11, 2020 |
| SOI-Camp in Sarnen |
February 8 – 15, 2020 |
| Second Round Theory |
March 7, 2020 |
| Second Round Practical |
March 13 – 16, 2020 |
| Swiss Finals |
30/31 July and 6/7 August 2020 |
| CEOI in Nagykanizsa, Hungary |
23 – 29 August 2020 |
| IOI in Singapore (online) |
13 – 19 September 2020 |