IWAA baseball/ softball is offered to boys and girls in grades K thru 8. Children currently in Kindergarten and those entering Kindergarten in the Fall play in an instructional training league run by the IWAA against other Incarnate Word teams. All games are played on Saturday mornings at Incarnate Word.

1st through 8th graders play in the West County Baseball League against other schools in that league. Teams are formed when entering the first grade. These teams are then kept the same from year to year. All Incarnate Word parishioners will be placed on an established parish team or will form new teams with other parishioners. New registrants that are not registered parishioners at Incarnate Word are welcome to join the program where space on established parish rosters permit. In the event of significant rostering issues, parishioners will be given priority over non-parishioners.