Sports Games simulate real or fantasy sports within Rec Room. Some - but not all - of these Custom Rooms implement game rules using Circuits and the Roles system.
Basketball[]
^SaintsBasketBallArena is a basic implementation of a basketball court.
Boxing[]
^Boxers is an implementation of boxing in Rec Room.
Disc Golf[]
Disc golf maps are player-created games that re-implement the game mechanics of #RecRoomOriginal Disc Golf.

^DiscGolfInPark uses similar game mechanics as Disc Golf but is located in the Park.
Examples of custom disc golf is ^DiscGolfInPark (with room doors to other custom disc golf maps based on ^DiscGolfTemplate.)
Velp has created another template for implementing disc golf: ^golftemplate.
Kite Flying[]
^DualLineKite is an implemantation of a dual-line kite for a single player.
Quidditch[]
^QuidditchRecRoom is an implementation of the ball game from the Harry Potter universe.
Racing[]
An example for a first-person racing map (for walking mode) is ^SpaceWarslvl2. Examples for race tracks for RC Cars are ^Rectona500 and ^RecRoomSpeedway.
Tennis[]
^FutureTennis is a tennis implementation.
Ultimate Frisbee[]
Ultimate (frisbee) has been played as an impromptu game for a long time in Rec Room. There is also a room with built-in rules: ^UltimateFrisbee .