ERWIN — The Sullivan Central boys went on the road to Unicoi County on Friday night and returned home with a 51-41 win that tightened the Three Rivers Conference basketball race. “I’m super proud of the guys,” said Cougars coach Derek McGhee. “We didn’t shoot it well offensively, but to pull out a win is great.” Central (9-11, 4-1) managed just eight first-quarter points, half of them from Troy Rosenbalm.