Kammala jumla mai zuwa: A Gasar Cin Kofin Turai ta FIL, Gruber ya lashe lambobin yabo tara tare da zinare biyu (Maza biyu: 2008, 2014), azurfa huɗu (Maza biyu: 2004; Mixed team: 2004,
2006, 2013), da tagulla guda uku (Maza biyu: 2006; Mixed team: 2012, 2014).