Originally known as the Busch Clash, the race began as a 20-lap shootout among pole winners from the previous season.
The race was renamed the Bud Shootout in 1998 and expanded to two 25-lap segments. It became the Budweiser Shootout in 2001 and was expanded to 70 laps.
MORE: Daytona 500 winners | Daytona 500 schedule | Daytona test speeds
Now sponsored by series sponsor Sprint, the current format is selected by a fan vote, which will be announced just before the race.
Dale Earnhardt tops the all-time list of winners of the event with six victories. More recently, Tony Stewart and Kevin Harvick each have three wins.
Here’s a look at the previous winners of the Sprint Unlimited.
1979 Buddy Baker 1980 Dale Earnhardt 1981 Darrell Waltrip 1982 Bobby Allison 1983 Neil Bonnett 1984 Neil Bonnett 1985 Terry Labonte 1986 Dale Earnhardt 1987 Bill Elliott 1988 Dale Earnhardt 1989 Ken Schrader 1990 Ken Schrader 1991 Dale Earnhardt 1992 Geoff Bodine 1993 Dale Earnhardt 1994 Jeff Gordon 1995 Dale Earnhardt 1996 Dale Jarrett 1997 Jeff Gordon 1998 Rusty Wallace 1999 Mark Martin 2000 Dale Jarrett 2001 Tony Stewart 2002 Tony Stewart 2003 Dale Earnhardt Jr. 2004 Dale Jarrett 2005 Jimmie Johnson 2006 Denny Hamlin 2007 Tony Stewart 2008 Dale Earnhardt Jr. 2009 Kevin Harvick 2010 Kevin Harvick 2011 Kurt Busch 2012 Kyle Busch 2013 Kevin Harvick
