If both R1 and the batter-runner occupy third base at the same time, does the preceding runner (R1) have the right to the base?

In NCAA softball, if both the preceding runner, R1, and the batter-runner are on third base at the same time, the rule states that the preceding runner retains the right to the base. This is because the base belongs to the runner that legally occupied it first, which in this case is R1, the preceding runner.

According to the rules, a runner may not be legally put out while they are occupying a base unless they leave that base. Since R1 was on the base before the batter-runner arrived, R1 has established their right to the base, and thus would not be required to vacate it simply because the batter-runner also arrived there. The rules are designed to ensure that the base belongs to the runner who first attained it, maintaining the integrity of base running and preventing unnecessary confusion or obstruction during play.

This scenario does not imply that the batter-runner is entitled to the base, as they must avoid interfering with R1's legal position. Therefore, the statement claiming that the preceding runner has a right to the base is true.