Asked to support his assertion that a particular team will not win the championship, a sports commentator says, "They won't win because they won't be able to put enough points on the board." This is an example of what type of fallacy?

Begging the question.

Explanation:

A fallacy is described as an error or flaw in reasoning that leads to making an argument invalid and damages the credibility of the claim. 'Begging the question' is elucidated as the fallacy that involves the premises of an argument is presumed to prove the truth of conclusion instead of providing support to it.

As per the description, the given example display 'begging the question' fallacy as the premises ('they won't be able to put enough points on the board') that should function to support the claim, is instead functioning to prove the validity of the conclusion('they won't win). Therefore, it makes the argument invalid and its efficacy is damaged. Thus, 'begging the question' fallacy is the answer.