The Arkansas Better Chance (ABC) program has been providing low-income and at-risk Arkansas children with tuition-free pre-K since 1991. Enrollment in the state’s public pre-K programs has increased modestly over the last ten years. This brief reports the results of an analysis of the 3rd and 5th grade outcomes for students who attended ABC pre-K in the academic years of 2011-12 through 2014-15. We find that students who enroll in ABC programs in the year prior to starting Kindergarten outperform similar peers on math and reading state tests in 3rd grade, but these effects largely fadeout by 5th grade. (author abstract)