Recent research has brought up boredom as guiding signal in goal-directed behavior. Boredom activates a search for more valuable activities, consequently, boredom can challenge goal-directed behavior, also in the sporting context. Here, we examined experienced boredom in athletic training for a competition in 153 athletes with a cross-sectional questionnaire. We developed the questionnaire based on theoretical approaches of boredom. Specifically, we considered two core triggers of boredom, i.e., the ability to remain engaged with the training and the value that athletes ascribe to the training. We found that the positive relationship between difficulty of engagement in athletic training and the experience of boredom is moderated by the value ascribed to the training. In other words, the value ascribed to the training plays a protecting role in that high levels of value nullify the positive relationship between difficulty of engagement and experienced boredom in sports. Future research is needed to better understand antecedents and consequences of boredom experiences in specific sporting contexts, for example differentiating individual vs. collective activities, or competition vs. training situations.