There are all sorts of athletes using CORE. Some are pro-tour riders, others do charity rides. Some are professional triathletes, others are trying their first middle distance (70.3 mi) or long distance (140.6 mi) triathlon. Some are top marathoners, and others are looking to PR or even just finish a half, full or even ultramarathon.
What they all have in common is that they know nutrition is critical. And they all use CORE to ensure they get the most out of their training and races.