In 2011, 77% of E.L. Haynes students scored proficient or advanced in math and 64% scored proficient or advanced in reading on the DC-CAS, outpacing DC Public and Public Charter Schools' scores of 43% in math and 44% in reading. E.L. Haynes students also outscored DC Public and Public Charter Schools in the percentage of students scoring advanced.

E.L Haynes opened in 2004 serving PK-2nd graders. By 2011, those 2nd graders were 8th graders and had made extraordinary gains. Ninety (90%) scored proficient or advanced in math and 75% scored proficient or advanced in reading. In comparison, across all 8th graders enrolled in DC Public and Public Charter Schools, 54% scored proficient or advanced in math and 45% scored proficient or advanced in reading.

E.L. Haynes has demonstrated outstanding six-year gains on the DC-CAS of 47 percentage points in math and 23 percentage points in reading, more than twice the gains in math and three times in reading than DC Public and Public Charter Schools. Statewide gains for the same period are 17 percentage points in math and 7 percentage points in reading.