age-related, substandard motor quotient of 87.7 (standard quotient MQ= 100). When participating in a Ball School programme they could improve and reach an outstanding quotient (MQ = 106) when they were 6 and 12 years old. Further output-evaluations were conducted including those evaluating the development of playing intelligence and -creativity of Ball School children at primary school age as well as those evaluating the programmes for children with ADHD, for overweight/obese and physically handicapped children. Cooperation Ball School Heidelberg is cooperating with kindergartens, schools, sports clubs, sports associations, national and international centres as well as commercial sports providers. In Germany, there is a dense network of cooperating day care centres, primary schools and more than 300 partnerships with sports clubs and –associations. The latter include smaller multi- or single-branch- as well as well-known clubs, such as TSG Hoffenheim, Rhein-Neckar-Löwen, Adler Mannheim, Eintracht Frankfurt, Werder Bremen, SC Freiburg, THW Kiel, VfL Gummersbach and Brose Baskets Bamberg. The Ball School's national expansion is supported by centres in Munich, Bamberg, Cologne, Halle, Hamburg and Kiel. These are managed by Ball School experts and are also allowed to arrange cooperation agreements in their (stipulated) region and to train Ball School staff. The ABC-curricula has been translated into Portuguese, Spanish, Hungarian, Russian, Chinese, Japanese and English (USA) and serves as a basis for the work of international Ball School centres. Training One central aspect in the Ball School's dissemination is its system of basic and advanced training. Basic training refers to the Ball School's ABC (primary school children) and the Mini Ball School. Advanced training includes specific add-on programmes (advanced training in throwing games, in adiposity etc.). A participation in one of the Ball School's basic training requires a C-level trainer certification issued by a sports association as well as a minimum age of 16. A trainer certification may be compensated by an evidence of comparable knowledge and skills, such as qualifications which do not necessarily need to be finished by the time of application (sports- and gymnastic teacher etc., study of sports), or by work experience (nursery nurses, primary school teachers, longstanding training activity etc.). History and institutional integration In cooperation with FT Kirchheim, Ball School Heidelberg was first offered in Heidelberg's primary schools in 1998. In 2002, the friend's association “Ballschule e. V” was founded. Between 2005 and 2014, the Ball School's activities concerning cooperation and training highly increased. On 1 January 2015,