Mark RaffaufMark Raffauf has spent most of his adult life as part of the IMSA family. Dating back to his teens in the 1970s where he became an integral part of the organization during its GT glory days, he went on to become the key person behind IMSA's GTP era bfore shifting his attention to Grand-Am, and today, the relationship continues with his leadership role in the new IMSA championship. Read More Read Less