Rubuta ci gaba don wannan sakin layi - Babban gasa ta farko ta manyan manyan ƙasashe ita ce Gasar Zakarun Turai ta 2007, inda ya gama na 15. Ya kuma yi gasa a Gasar Cin Kofin Duniya ta 2007, inda ya kammala na 29. Shekaru biyu bayan haka, ya sami damar shiga cikin manyan goma, tare da matsayi na shida a gasar zakarun Turai ta 2009 da na biyar a gasar zakarun duniya ta 2009. A wannan kakar, ya kuma sami nasarar farko a gasar cin kofin duniya, inda ya kammala na uku a Bratislava kuma ya zama na biyar a matsayin karshe na gasar cin kofin duniya. A kakar wasa ta gaba ya lashe lambar yabo ta farko: azurfa a gasar zakarun Turai ta 2010, lokacin da 'yan wasan Slovak suka mamaye dukkan wuraren da aka samu. Ya kuma zama zakaran gasar cin kofin duniya a rukunin C1. A shekara ta 2011 ya lashe lambar yabo ta farko kuma har yanzu ita ce kawai lambar yabo a gasar zakarun duniya: tagulla
, a kan gidansa na Whitewater Course kuma ya lashe tserensa na farko na gasar cin kofin duniya, inda ya zama na biyu a matsayin karshe. Hakanan an nada shi Canoeist na shekara ta 2011 ta Kungiyar Canoe ta Slovak. Tsakanin 2010 da 2015 koyaushe ya gama a cikin manyan 3 a cikin matsayi na ƙarshe na gasar cin kofin duniya, bayan na farko da na biyu a cikin 2010 da 2011 bi da bi, ya kuma kasance na uku a cikin 2012, na biyu a cikin 2013, na uku a cikin 2014 da na farko a cikin 2015. Daga 2013 zuwa 2016 koyaushe ya gama a cikin manyan goma a manyan gasa, tare da na tara da na shida biyu a Gasar Cin Kofin Duniya da lambar tagulla biyu (2013 da 2015) da na biyar a matakin Turai. A cikin 2015, an sake ba shi lambar yabo ta Slovak Canoeist na Shekara. Babban nasarar da ya samu shine lambar azurfa a wasannin Olympics na bazara na 2016, inda ya tsawaita lambar yabo ta Slovak a cikin wannan horo (Michal Martikán ne ya sami lambobin yabo biyar na farko a C1). Beňuš ya kuma yi gasa a Wasannin Olympics na 2020, inda ya gama a matsayi na 6 a cikin C1.