Kammala jumla mai zuwa: Gruissem ya fara wasa a wasanni na rayuwa a shekara ta 2009. Ya gama na 28 a cikin
2011 World Series of Poker yana samun fiye da $ 240,000. Gruissem mafi girma live gasa tsabar kudi ne lashe 2014 Turai Poker Tour € 25,000 High Roller taron, samun $ 1,378,059.