Casper is Wyoming's sports and leisure headquarters. Thousands of people visit Casper throughout the year to participate in sporting events from the Wyoming state high school volleyball, wrestling, basketball, and track championships, to the College National Finals Rodeo. These events plus numerous others helped Casper become Wyoming's Sports City as voted by Sports Illustrated magazine.

Casper's Wyoming Cavalry is a professional indoor football team of the American Indoor Football Association. They play their home games at the Casper Events Center. The team began play in 2000 as an expansion member of the Indoor Football League as the Casper Cavalry. Despite a good inaugural season, they fell in the playoffs to Black Hills. Later, they moved to the newly-formed National Indoor Football League as the "Wyoming Cavalry" and became a charter member. The team was successful, making the playoffs in four of their seven overall seasons, and even making it to the inaugural Indoor Bowl, losing to the Mississippi Fire Dogs (which were coached by Irvin Favre, Brett Favre's father. In August 2007, the Cavalry officially announced they would join the American Indoor Football Association as the flagship team of the league's new Western Division.

The Casper Ghosts play their first three games on the road, but then return home to Mike Lansing Field for their first homestand against the Idaho Falls Chukars and the Orem Owlz, starting with Opening Day 2008 on Friday, June 20th and finishing Wednesday, June 25. The 2008 season comes to an end with the Ghosts playing a five-game homestand against Idaho Falls ending Friday, September 5th. Ticket packages for the 2008 season are on sale now, with Individual Game Tickets, Bonus Books of 10 undated tickets, and Season Tickets all available for the 2008 Pioneer League Season. The Casper Ghosts are the Pioneer League Affiliate (Advanced-Rookie) of the 2007 National League Champion Colorado Rockies, where five former members of Casper teams were on the Rockies' 2007 World Series Roster. All home games are played at Mike Lansing Field, just a short distance from the Parkway Plaza. Come to the game and see future Major League Baseball players play right here in Casper. Click here to download a schedule.

The Casper Events Center, a beautiful, state-of-the-art complex built high on a hill overlooking the City of Casper, Casper Mountain and the scenic Platte River Valley of Central Wyoming, lends new meaning to the term "adaptability". It can seat over 9,700 people and has extensive services and configuration capabilities to support Broadway shows, ice shows, basketball games, trade shows, concerts, and monster truck shows. The rough-and-tumble of professional rodeo, the three-ring extravaganza of the Barnum and Bailey Circus, and major touring acts including Metallica and The Eagles in the spring of 2004. these are just a few of the many events staged at this first-class facility.