are chosen for the British team to participate in the European Girls' Olympiad in Informatics (EGOI), and one is chosen as reserve. Furthermore, since 2024, the IOI and EGOI teams alongside their reserves and one additional participant all participate as a team of 9 in the Western European Olympiad in Informatics (WEOI).

Mark schemes are available for all round 1 past papers at the competition's official site, as well as problem statements for all round 1 and round 2 past papers. Official worked solutions are available for round 1 papers