A couple of races throughout history seem to always give me goosebumps and excited to race. With limited research I consider the following to be the three greatest races of all time.
#3 The 1997 Ironman World Championships:
Sian Welch and Wendy Ingram, both go beyond their limits to an amazing finish.
#2 The 1989 Ironman World Championships.
Dave Scott and Mark Allen were the best of rivals and in a league of their own in the 1980's Their rivalry has been well documented and commonly referred to as the Iron War.
#1 The 1982 Boston Marathon
Dick Beardsley and Alberto Salazar in the fabled Duel in the Sun. The only race that everyone remembers who came in second