The aim of this study was to devise a performance analysis template for the
assessment of goalkeeper performance associated with elite professional
football. Key performance indicators to characterise the demands of a
goalkeeper (Distribution, Crosses and Shot stopping and one versus one
scenarios) were developed and notated using a computerised notational analysis
system. In order to assess the reliability, data was subjected to both absolute and
relative intra-observer reliability assessment via the methods outlined by Liu,
Hopkins, Gomez & Molinuevo, 2013; Hughes, Cooper & Nevill, 2002;
McHugh, 2012 and Robinson & O’Donoughue, 2007. This methods focus on the
frequencies of events between observations. For all performance indicators,
intra-observer reliability revealed high agreement was established between
observations (80-100%). The percentage error for all variables indicated that the
data had an almost perfect level of agreement as all values of kappa were above
.90 meaning the percentage of data deemed reliable was between 82%-100%.
Nonetheless, systematic bias was removed between observations and the
percentage error for all variables was below 5%. In conclusion, a performance
analysis template has been developed for the assessment of professional
goalkeepers performance and is now readily available for use by researchers,
coaches and athletes to classify and quantify the performance demands of a
goalkeeper