The Arkansas Better Chance (ABC) 2023 Program Longitudinal Study 2009-2022 evaluates the kindergarten through 12th grade outcomes of participation in pre-k services in Arkansas for ABC participants from 2009 to 2021 compared to low-income students not participating in pre-K. ADE DESE data is analyzed to determine outcomes for these two core groups from 2010 to 2022. Kindergarten meal statuses of direct certification and free lunch are in the core comparison. This study shows that compared to No Known Pre-K, the ABC participants consistently have: (1) Higher ACT Aspire on-time proficiency in ELA Literacy, Math, and Science; (2) More days attended in kindergarten through 12th grade; (3) Lower rates of grade level retention; and (4) Higher rates of graduation (a new measure for this 2023 study). The ABC participants of 2009 could have graduated from high school on-time during the 2022 academic year. This 2023 study allowed for the kindergarten rate of graduation to be calculated. The purpose of the ABC program is to offer high quality early education services to children exhibiting developmental and socio-economic risk factors. This study sets the two core comparison groups on those DESE kindergarten students which best represent the contrast between children who received ABC program services and those children who would have qualified for ABC program services but did not participate in ABC. This study evaluates the outcomes of pre-k participation, not an established DESE measure of accountability. The calculations keep the core comparison groups of ABC and NK unchanged. By establishing this core comparison, the impact of the ABC program can be isolated and studied longitudinally for outcomes of Arkansas K-12 public education through high school graduation.