Lauren played college basketball for two years at Midland College in Texas before strong showings earned her a transfer to Iowa State University to play for the Iowa State Cyclones in the Big 12 Conference where she was starting point guard.

[1] After returning from college, Mansfield signed on with her home team the Adelaide Lightning.

She has also played in the South East Australian Basketball League for the Launceston Tornadoes since the 2013 season.

Mansfield played a larger role than originally anticipated due to the untimely injury of Erin Phillips.

Her excellent season was recognised by finishing in 8th place for WNBL MVP voting,[2] and being named in the Australian Opals squad for the 2016 Summer Olympics.