Event
These patches recognize a specific game, series of games, or multi-day event. Most do not specify a target audience or are designed for officials, but there are a few intended for announcers, photographers, skaters, volunteers, etc.
Roller Derby World Cup (2018)
ExpiredRollercon (2009, Referee)
ExpiredI suspect (but don't know for certain) there was no similar patch for NSOs. In 2009 NSOs were not recruited, trained, respected in the same way they are now. They were likely either given this patch, or not given one at all.
Rollercon (2009)
ExpiredRollercon (2011, Official)
ExpiredRollercon (2012, Official)
ExpiredRollercon (2013, Official)
ExpiredRollercon (2014, Official)
ExpiredRollercon (2015, Official)
ExpiredRollercon (2016, Official)
ExpiredRollercon (2017, Official)
ExpiredRollercon (2018, Official)
ExpiredRollercon (2018)
ExpiredRollercon (2019, Official)
ExpiredThis event was canceled and didn't actually happen, but patches were distributed to officials anyway.
Rollercon (2022, Official)
ExpiredRollercon (2023, Official)
ExpiredThis event was hosted by the now-disbanded league, the Sioux City Roller Dames.
This event was hosted by Minnesota Men's Roller Derby.
Royal Brawl Invitational (2018)
ExpiredThis even was hosted by Royal City Roller Derby.
Royal Rumble (2015)
ExpiredThis event was hosted by Paradise City Roller Derby.
Royal Rumble (2016, Official)
ExpiredThis event was hosted by Paradise City Roller Derby.
Royal Rumble (2017)
ExpiredThis event was hosted by Paradise City Roller Derby.
Royal Rumble (2018)
ExpiredThis event was hosted by Paradise City Roller Derby.
Royal Rumble (2019)
ExpiredThis event was hosted by Paradise City Roller Derby.
RuhrPott Roller Girls (now RuhrPott Roller Derby) vs. Roller Derby Metz Club.
Rust Riot (2016)
ExpiredThis event is hosted by Rat City Roller Derby.
Rust Riot (2018)
ExpiredThis event is hosted by Rat City Roller Derby.