Johncock chose not to attend the 2011 Indianapolis 500, which celebrated the 100th anniversary of the first race. Despite the fact that all living former participants, and particularly living former winners, were invited, Johncock did not attend any of the festivities, seemingly by choice. A year later, Speedway officials again invited him to attend, and he did return to the Speedway and participated in pre-race festivities at the 2012 race.