Which of the following accurately describes a key feature of the double round robin format?

In a double round robin format, each team competes against every other team two times—once at home and once away (or at neutral venues). This means that every team gets the opportunity to face every other team twice, allowing for a more comprehensive assessment of each team's performance over the course of the competition. This format helps reduce the impact of any single match's result, as teams have multiple opportunities to face their opponents, which can lead to a more accurate ranking by the end of the tournament.

In contrast, the other options misrepresent the nature of the double round robin; for instance, options about only facing each other once or implying limitations on determining a champion do not reflect the essence of this competition structure, which is focused on fairness and thoroughness through repeated encounters.