The early 1990s witnessed Arie Luyendyk winning in what was then the fastest 500 to date, with an average speed of . That record was not eclipsed for almost a quarter of a century until Tony Kanaan won the 2013 race with an average speed of over . Rick Mears became the third four-time winner after a late-race duel with Michael Andretti in 1991, and in 1992, Al Unser Jr. eked out a hard-fought victory by defeating last-place-starting driver Scott Goodyear by 0.043 of a second, a margin that is still the closest finish in race history. The 500 got a new look in 1996 when it became an Indy Racing League event, formed as a rival to CART.