This cross-sectional study explored whether participation, from early childhood, in play involving different cognitive abilities predicts visuo-spatial achievement at ages 9, 12, and 15. Based on parental assessment, prior and present practice of spatial manipulation play was found to be consistently more frequent in boys than in girls; the reverse held true for verbal expression play. Whereas boys did not significantly outperform girls in three visuo-spatial tasks, girls were superior on a contrastive vocabulary task. In general, with IQ statistically controlled, regression analyses showed that estimated past and present spatial manipulation play predicted both genders' proficiency in the waterlevel task and Embedded Figures Test, as did mothers' socioeconomic status for Block Design performance. Contrastingly, a negative relation was established between spatial manipulation play and vocabulary scores. Similar to the activity-ability association often identified among adults, the relation established here between spatial play experience and visuo-spatial ability was only modest. Further research should aim at more definitive conclusions through augmenting both diversity in the visuo-spatial skills measured and sophistication in play behaviour appraisal. Copyright # 2003 John Wiley & Sons, Ltd.Key words: visuo-spatial ability; play; preadolescents; adolescents Play behaviour is relatively easy to recognize. It is mainly intrinsically motivated; at least in children, it involves overt actions as opposed to daydreaming; and it focuses on means or process, rather than ends or product (Harr! e e and Lamb, 1983;Johnson et al., 1987;Rubin et al., 1983). However, its content generally differs according to the children's gender. In fact, from their meta-analysis on whether