March and April 2022 were great for VisiBall in Bulgaria with two tests taking place in the 74th Secondary school gym and then on a Barocco sport club pitch. The second test involved the young participants in testing exercises proposed in the MOOCs, developed under the Four-minute Barriers project. The activities took place under the 4MB project, supported by the Erasmus+ programme, n. 613251-EPP-1-2019-1-BG-SPO-SCP – https://www.4mbarriers.eu