Teams with green scores (winners) returned in the next round, while those with red scores (losers) were eliminated.
Teams with orange scores had to win one more match to return in the next round (current highest scoring losers, teams that won their first quarter-final match, teams that won their second quarter-final match having lost their first, or teams that won their first quarter-final match and lost their second).
Teams with yellow scores indicate that two further matches had to be played and won (teams that lost their first quarter-final match).
Team with gold score in the final indicate the champion of the series, while the team with silver score in the final indicate the runner-up.
A score in italics indicates a match decided on a tie-breaker question.
Each year, a Christmas special sequence is aired featuring distinguished alumni. Out of 7 first-round winners, the top 4 highest-scoring teams progress to the semi-finals. The teams consist of celebrities who represent their alma maters.