Roller sports are sports that use human powered vehicles which use rolling either by gravity or various pushing techniques. Typically ball bearings and polyurethane wheels are used for momentum and traction respectively, and attached to devices or vehicles that the roller puts his weight on. The international governing body is World Skate.
Roller sports include the following disciplines
Since 2017 World Skate has organised the World Roller Games, a biennial competition that now includes 11 world championships in one single event. List of events:[3]
Skateboarding events have been introduced for the 2020 Summer Olympics, with two events: park and street. Much like BMX cycling, the park event will feature what resembles an empty swimming pool.[4] Competitors will have three timed runs for tricks. On street, there will be ramps and rails for routines and tricks. There will be a total of 80 total spots, with 20 in each event. Each country can enter a maximum of three athletes in each event.[5]
On the programme for the 2021 World Games to be held in Birmingham, Alabama there are 4 roller sports disciplines; Artistic, Inline hockey, Speed Skating Road and Speed Skating track. Roller sports is the only sport on the World Games programme represented in three clusters. Speed Skating belongs to "Trend Sports", Artistic to "Artistic Sports" and Inline Hockey to "Ball Sports".[6]