The aims of this study were to a) identify the birthdate distribution in Polish handball teams from 2007 to 2020, b) evaluate differences between sex, level and position on the court and c) analyse the relations between points per game and the player’s birth quarter. We hypothesized that there is discrimination between players in contact sports based on birth quarter, as well as throwing efficiency during the game. The study involved 94,617 male and 60,202 female handball players registered in the official database of the Polish Handball Association between 2007 and 2020 and their corresponding birthdates in the Polish population between 1994 and 2003. The following levels were categorised: PRO, SEMI-PRO (S-P), AMATEUR (AM) , CENTRAL YOUTH (CY) and REGIONAL YOUTH (RY). The differences between the observed distributions were analyzed in relation to specific variables: the position of the player on the court and the category of competition. The quarterly differences between points per game according to the on-court position were analysed. Surprisingly, no relative age effect (RAE) was identified in the wingers position in handball, regardless of sex or competition level. Additionally, an RAE was identified regardless of sex in most of the seasons analysed (apart from the 2009-2010 and 2010-2011 seasons for female). Subjects representing certain positions born in the last quarter of the calendar year also scored fewer points per game than other respective players. The strongest disproportion in the relationship between the birth quarter and the points per game was observed in the group of playmakers (for female: Q1>Q2>Q3>Q4; for male: Q1>Q2>Q3>Q4 for p<0.01 to p<0.001 between quarters). An almost complete absence of the RAE among wingers is the unique finding of this study, one that had not been observed before