The aim of this study was to analyze the energy systems in all Greco-Roman (GR) and freestyle (FS) wrestlers who participated in the 2015 and 2016 world championships (WCh). The materials of the present study consisted of 801 videos (679 of 2015 WCh; 122 of 2016 WCh) that were posted by United World Wrestling (UWW) on their website, along with a multimedia player (laptop) for watching the videos and a chronometer to record the duration of wrestling matches. Data were recorded on specially designed sheets that were prepared in advance. The relative contribution of energy systems in a wrestling match is presented. Moreover, there were some differences between wrestling styles and WCh in respect to relative contribution of energy systems. We determined the quality and quantity of obtained scores by both GR and FS wrestlers. Results showed that FS wrestlers generally score more points than GR wrestlers. Additionally, we investigated the placers’ competition efficiency, which showed that top wrestlers who won the gold medals also had a better competition efficiency than other placers, and this difference was statistically significant (p < 0.05).

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