Yes, each school is permitted to enter up to three (3) girls and three (3) boys relay teams per grade category.
The cost is a flat fee of $5 per student. Whether they register for 1 event, relay only, or 3 events, the cost is still $5.
Athletes must compete in the grade they are in at school; not age groups.
You can select 3 girls and 3 boys for each grade category for each event. There are two grade categories (3&4, 5&6). There are 6 events not including relays. So you can bring 18 girls and 18 boys(36 total), not including your relay teams and any participants in the wheelchair events.
You can improvise by getting some foam pool noodles and place them across boards, or foam blocks raised to the specifications indicated on the TrackFest information sheet.