The Optional Flexible School Day Program (OFSDP) is approved by the Texas Commissioner of Education and is offered by the Houston Independent School District (HISD) to provide students with flexible school hours and days of attendance. The goal of the program is to improve the graduation rates for students who are in danger of dropping out of school or who have dropped out, or for students who are behind in core subject courses. The program provides students with opportunities to earn attendance and course credits if they are unable to attend school in a traditional setting or are at risk of being denied course credit due to unmet attendance requirements. This report describes characteristics of program participants and their academic outcomes for 2014-2015. Key findings are as follows: (1) In 2014-2015, 550 students participated in OFSDP, a 9.7 percent decrease from 609 participants in 2011-2012 and a 15.3 percent increase from 477 participants in 2013-2014; (2) OFSDP participants enrolled in 2,320 courses, completed 43.9 percent of the courses, and earned 518.5 credits; and (3) In 2014-2015, 25 (8.9 percent) of the 281 OFSDP seniors graduated, 40 (14.2 percent) withdrew, and 215 (76.5 percent) were still enrolled in the district.