Abstract
The aim is to detect change in the effect of swimming on the overall performance in triathlon over the past ten years. The relationship between two variables (swimming time and the total time competitors from WCH in 2000-2010) was described using linear regression.
Regressioncoefficients calculated for each year, we subsequently compared with the point chart. The importance of swimming is fixed in the last 10 years.
The regression coefficient ranged from 0.0004 (2006) and 0.0665 (2010). An exception was in 2005 (R2 = 0.2146).
The results show that the very good time and position of the swimming section does not guarantee success in the race. Swimming (and cycling) part of triathlon together called the hidden discipline.
Therefore may not be decisive position and time of the triathlon, but the competitor's internal state of the organism and the amount of energy, who saves in the final running of the race, which decides the winner.