Rainey Endowed was assessed as very good in 2014, before the ETI ratings were changed to a four-point scale. A 2017 inspection confirmed that it “continues to demonstrate a high level of capacity for sustained improvement in the interest of all the learners … The school has a high quality, and soundly research-informed, teaching and learning policy ... The whole-school culture of continuous improvement supports the young people well in developing the dispositions and behaviour to become successful, resilient life-long learners.”