The research was selectively focused on the space of performance parameters of team handball which define ineffectiveness of players in attack. The main purpose was to analyze parameters of performance ineffectiveness in attack of the Croatian female first league handball players which were manifested as technical-tactical errors of attack organization and attack finish. The errors were registered by the battery of 21 variables assessing technical-tactical elements of handball, whereas the probable differences in manifestation of the errors were monitored and analyzed in relation to the following criteria: 15-year long period (first and second measurement), various outcomes of matches (victory, defeat, tie), various quality of the teams (ranking among the first four – high-quality; ranking among the last four – poor quality), opponents of various quality rank, game home or away and particular playing positions (backcourt, wing and pivot attackers). The population of entities was defined as the population of matches of the Croatian first league (national championship) female teams. The sample of entities consisted of two subsamples of 56 matches, that is, of 112 mutually opposed team performers of technical-tactical activities, recorded during their competition in the First Croatian Handball League for Women in the 1995/96 and 2009/10 competition seasons. Basic descriptive and distribution statistical parameters of the predictors were calculated. The differences in the errors manifestation in total in relation to the criterion variables were determined with the non-parametric Chi-square test. The differences in the manifestation of individual errors in relation to the criterion variables were determined with the univariate analysis of variance (ANOVA) and, due to the questionable distribution normality of most predictors, with the non-parametric Kruskal-Wallis ANOVA test. The battery of 21 variables discriminated well the number and the types of errors made in the first and the second competition season, thus confirming the first hypothesis (H1). The game of handball has changed in attack during 15 years. The statistically significant differences were determined in the number of error manifestation between the teams who were either winners or losers in favor of the winners. However, no significant differences were determined in error types, therefore, due to that, the second hypothesis could not be accepted entirely: both the winners and losers produced the similar ratio of either the organizational or finishing attack errors. No significant differences were proved in the errors manifestation between the teams of different quality (H3). However, certain trends were obtained in the number and type of errors. When matches between opponents of different quality were played, higher differences were obtained in the new championship than in the old one, but no significant differences were obtained between the error types and quality of the opponents. Therefore, the fourth hypothesis was only partially accepted: the teams produced the proportionate ratio of both the organizational and finishing attack errors. Here again, a trend was obtained: the bigger number of inefficient attacks against the high quality opponents. No statistical significant difference was found in this research for the manifestation of errors when playing home or away, meaning that the fifth hypothesis was completely rejected. The obtained results undoubtedly confirmed the existence of significant differences between the manifestation of errors and playing positions, thus making the sixth hypothesis completely acceptable. The research showed high predictive power of the variable shot from the counter-attack – missed, which was significantly associated with all the criteria. Also, the variable jump-shot – missed showed its significance in the differentiation between ineffectiveness of teams between two measurements, between winners and losers, between opponents of different quality and between playing positions. Apart from these finishing attack variables, the two indicators of attack organization should be emphasized here: ball passing and catching. These variables were significant for the associations with all the criteria but playing home or away. Scientific value of the research is in its implementation of research methodology to team sport game assessment and interpretation. Its exceptional value is that the assessment was conducted under the actual conditions of competition of top-level teams over entire two competition seasons. The research and its results may be used as a basis for criteria and norms design aimed at evaluating situation-related ineffectiveness in attack being one of the crucial elements for overall performance evaluation in top-level handball for each playing position. As such they can be implemented in the process of sport training and tactical planning. Key words: