When not fundraising or working, the two are preparing for the upcoming double-elimination tournament.
"It is months of training, eating right, dropping weight which is painful," Oppenheimer said. "Then it is a one second, ready, go and then it is over."
With their hands locked, these two arm-wrestling champs have been perfecting their techniques as this is a serious sport in Europe.
"Here it is more relaxed," Fuller said. "We are trying to get it to where it is more serious here, rather than just over there."
These two friends have been competitively wrestling for a few years, after they tried the sport and were instantly hooked.
"Just the technique alone, I thought it was kind of brute strength and beer," Oppenheimer said. "That is what we consider arm-wrestling. But when I learned all the different pressures and angles and positions, I fell in love with the technical aspect of it."
Now with enough awards to fill several walls, Fuller and Oppenheimer will keep on practicing for their biggest tournament yet.
"Just one slight move this way you could lose a match," Fuller said. "Or one slight move this way you could win the match."