Previous research has shown that for the achievement of top results certain factors such as body height, body mass and proportions of body parts are relevant. Besides the body composition the greatest influence comes from the training process which should be optimally dosed according to the abilities of each athlete. Training process must be accompanied by the corresponding optimal hygiene-diet regime of the athletes. We are of the opinion that optimal body mass of each athlete is com posed of body mass that helps him achieve top results. Thus conceived definition of the optimal body mass is actually the aim of this research. The aim of the re search is to define the aberration in respect to body mass of the elite athletes from the ideal body mass calculated by the formula of Lorenco, De Mole and relative body mass. We have especially aimed at the definition of weight - height relations of elite athletes in different sports disciplines. This re search was conducted on the sample of elite athletes participants of the World and European Champion ships and the Olympic Games obtained from the Internet. We have included 1381 athletes (footballers, volley ball players, waterpolo players, basketball players which be long to the group of team sports). As far as individual sports are concerned, we have included: walkers, swimmers, and gymnasts. The results of this re search show that the biggest aberrations of the body mass from the ideal one calculated according to Lorenc are found in waterpolo players 9,8 and basket ball players 8,6 kg while in other sports disciplines this difference is some - what smaller, namely in volleyball players it is 4,0 kg, swimmers 2,7 kg, footballers 2,7 kg. Walkers have on average smaller weight 5,0 kg while the measured body mass of gymnasts is identical to the ideal calculated body mass according to Lorenc. Some - what smaller abberations were found according to De Mole. .
