Tenis je aciklički polistrukturalni sport, a struktura igre je iznimno kompleksna i dinamična. Veliki je broj faktora koji utječu na konačan rezultat jednog teniskog susreta, a jedni od najvažnijih, ali i najkompleksnijih su izvođenje servisa i vraćanje servisa. U profesionalnom su tenisu česte usporedbe između načina igre u muškoj i ženskoj konkurenciji, a uspješnost u meču uvelike ovisi o uspješnosti izvođenja servisa i vraćanja servisa. Iz tog razloga će se u ovom radu usporediti na koji način tenisači pobjednici i tenisačice pobjednice igraju upravo analizirajući te segmente igre. Stoga je cilj ovog rada utvrđivanje razlika između tenisačica i tenisača u parametrima situacijske efikasnosti servisa i vraćanja servisa na Australian openu 2015. godine. Za potrebe ovog istraživanja koristili su se dostupni statistički pokazatelji odigranih pojedinačnih susreta WTA i ATP rangiranih tenisačica i tenisača koji su sudjelovali u glavnom turniru Australian opena 2015. godine. Praćene su varijable servisa i vraćanja servisa kod pobjednika i pobjednica u svim susretima kod kojih je bilo moguće statističko mjerenje kroz prva tri seta. Ukupno su praćene 24 varijable, od kojih se 16 varijabli odnosi na servis, a preostalih 8 na vraćanje servisa. Iz provedenog istraživanja se može zaključiti da tenisači u odnosu na tenisačice puno bolje igraju na vlastiti servis kroz sva tri seta, dok tenisačice igraju bolje u dijelu igre koji se odnosi na vraćanje servisa, uz veće oscilacije u igri na vlastitom servisu.

Tennis is an acyclic poly structural sport and its structure is extremely complex and dynamic. There are a large number of factors that affect the final result of a tennis match, ranging from psycological endurance to game fitness but within the physical attributes of the game, two of the most important and signficant factors are the serve and the return of serve. Although in proffesional tennis there are many comparations between male and female tennis game, the result of a match is often determined by the success of a player's service game and when receiving, by his or her return of serve. Considering this, this research will investigate how proffesional female and male tennis players are managing these specific parts to their game. The main aim of this research is to determine the difference in the parameters of situational efficiency of the serve and return of the serve between female and male players during the Australian open 2015. For the purpose of this research, it will be used available statistic indicators of completed single matches of WTA and ATP ranked tennis players who participated in the main draw of the Australian open tournament in 2015. Variables of serve and return of the serve were egzamined only of the winning player, and i solely used results of the first, second, and third (where applicable for women's) sets. The total of 24 variables were examined, out of which 16 variables refer to serve and the next 8 to the return of the serve. It can be concluded from the research that male tennis players had a much higher service succes rate than female players in all three analysed sets, whilst female tennis players find significantly higher succes on their return of serve then during their own service games, which was oscilating for most of the players.