The purpose of this study was to examine the accuracy of classroom teachers in observing students’ motor performance. In order to assess teacher accuracy in rating motor performance, an analysis was conducted on students’ scores on the Short Form of the Bruininks–Oseretsky Test of Motor Proficiency (BOT-S) between those who were rated high as compared to those who were rated low in motor performance, as determined by a teacher observation form. The two-tailed t statistic indicated a significant difference between standard mean scores for upper and lower quartile performances on the BOT-S (P<.05). However, there was a high degree of variance within the high and low groups. The results suggest that classroom teachers are more accurate in observing high motor performance than in observing low motor performance.