784 The purpose of this study was to examine activity behavior in African- American (AA) and White (W) 8th grade girls. Subjects were 322 AA and 333 W girls from 27 middle schools who completed the Three Day Physical Activity Recall (3DPAR) for 2 weekdays and 1 weekend day. Using a list of 55 activities, subjects reported the predominate activity during each 30 min time block from 7 am until 12 am. W girls reported significantly more blocks of moderate to vigorous activity than AA girls on both weekday (AA=3.5, W=4.3, p<.001), and on the weekend day (AA=3.3, W=5.0, p<.001). The most frequently reported physical activity was walking. About 28% of both AA and W girls reported at least 1 block of brisk walking on both weekday and weekend days, AA girls reported more walking for travel (AA=30%, W=23%, p=.03) on weekdays. More AA girls reported social dancing (AA=12%, W=3%, p=.001), while W girls reported more calisthenics (AA=6%, W=12%, p=.01), running (AA=9%, W=20%, p=.001) and softball (AA=6%, W=14%, p=.001) on weekdays. On the weekend, AA girls reported more basketball (AA=20%, W=15%, p=.13), and W girls reported more rollerbladding (AA=3%, W=12%, p=.001), and softball (AA=6%, W=14%, p=.001). In this study important differences were found for physical activity choices between AA and W girls. When planning interventions for girls, race/ethnic variations in activity choices should be considered.