Abstract: The invention relates to a method, system, detection apparatus and computer program for recognizing a collision of a golf club with a golf ball. In the invention the recognition procedure is configured to be executed partly in a motion sensor (22) of a detection device (2), party in the processor unit (20) of the detecting device and a mobile information processing device (6). The most complex processing and computation steps are executed in the processor unit (60) of the mobile information processing device (6). Due to the shared computations the result of the algorithm is accurate. Also the power consumption of the detecting device (2) is low which provides for a long operating time and accurate hit detection at the same time.