This study uses a measure of the on-track or off-track status of students at the end of grade 9 as an indicator of whether students in five Texas districts would graduate from high school in four years. In all five districts, on-time graduation rates were higher for students who were on track at the end of grade 9 than for students who were off track, both for students overall and for all racial/ethnic groups. This study is a first step in helping local districts and the Texas Education Agency develop an on-track indicator that accurately differentiates at the end of grade 9 between students who do and those who do not graduate on time. Appended are: (1) Study methodology; (2) District profiles; and (3) Off-track analysis. (Contains 1 box, 3 figures, 9 tables and 13 notes.) [For the summary report, see ED514376.]