Share this: “Mario Kart” tournaments have been tearing college roommates apart for years, but they’re bringing the Atlanta Braves together. The Braves endured a three-hour, 12-minute rain delay Tuesday before the seventh inning of their 6-5 win over the Pittsburgh Pirates. But in the meantime, some of the guys — including Nick Markakis, Ender Inciarte, Sean Rodriguez, Jim Johnson and Jace Peterson — played “Mario Kart” on the SunTrust Park clubhouse’s Nintendo Switch, playing six races each before declaring a winner. And that winner usually is Markakis, who plays as Princess Peach. “The best in the clubhouse is definitely Nick Markakis, as he is phenomenal,” Braves pitcher Luke Jackson said, per MLB.com’s Jaylon Thompson. “(Pitcher Eric) O’Flaherty is pretty good, Ender is good and