[2] In September 2007,[3][4] inspired by the London Rollergirls,[5] Natalie Boxall (derby name Germaine Leer) and Karen Slater (Bon Sleaze) founded the league under the name the Middlesbrough Milk Rollers.

[4] As well as taking part in bootcamps, bouts, and guest skating for other leagues, MMR also competed in the London Rollergirls' European tournament "Roll Britannia" in 2009 as part of the mixed team 'Royal Rebel Rollers'.

The Milk Rollers took first place in the Great Yorkshire Showdown tournament in July 2012.

[16][17] Middlesbrough qualified for the Division 2 Playoffs and Championship in 2017 as the sixth seed in Pittsburgh, but lost 163–156 to Columbia QuadSquad and also lost their consolation round game to E-Ville Roller Derby 199–191 to finish out of the medals.

[27] The league takes an active role in getting people in Teesside involved in roller derby[28] and have organised and hosted fundraisers and events including running a pop-up shop as part of the 'We Are Open' project.