Neurofeedback (NF) is a brain-based procedure that has made its way into the sport performance mental training (MT) arena. Athlete-specific NF protocols have also been used in an attempt to enhance performance. However, there are conceptual and methodological issues and problems associated with NF, more so in sport performance contexts. The current state of NF mirrors that of the field of sport psychology in general. According to the Dietrich’s Transient Hypofrontality Hypothesis (THH), the brain must make do with a finite amount of metabolites and blood flow. The THH can be difficult to test due to motion artifact issues associated with most brain imaging instruments, including positron emission tomography (PET) and functional magnetic resonance imaging (fMRI). THH-based NF may have the potential to reprogram/program performance adaptive brain-heart responses in athletes who are burdened with the worst athlete’s profile (AP) by taking the frontal lobes out of the performance disruption equation.