Sonic Endurance is a collection of like-minded individuals who are invested in your life, your athletic goals, and your overall well-being. We’re committed to the motto of Work Hard, Play Hard. You’re here because you want to challenge yourself, whether that’s finishing a race for the first time or looking to qualify for the Boston Marathon or Kona. We’re here to help you get there and to make sure that you have plenty of fun along the way.