In addition, in addition to the number of times between every two games, the rest time before each team's game, that is, the order of the first round, still has a certain impact on the performance of the game (for example, playing in the back of the first round can reduce the fatigue of the journey, you can observe the situation of each team first, and so on). For example, in Table 2, Team 4 and Team 5 played the last game in the first round, and in Table 3, Team 9 played the last game in the first round. In practice, this factor cannot be solved, and the order of the first round is usually decided by drawing lots.
As for the advantages and disadvantages of the curriculum, in addition to fairness, there is also the issue of efficiency, that is, how to arrange the curriculum reasonably and compactly to make the curriculum shorter.
6. Model evaluation
6. 1 The results of this model successfully give the formula for calculating the upper limit of the interval between every two games of each team in a single round-robin match in the same venue, which has certain theoretical and practical significance.
6.2 Up to now, the arrangement of single round robin in the same venue has actually adopted the "Round Robin Rules" (see the above figure, where n is an even arrangement). Through our research, it is found that this rule is simple, but it is fair for even-numbered scheduling because it conforms to d=[(n-3)/2]. For odd numbered plans, d