The young USA forward scored another goal for his Austrian club, helping his side keep pace in the race for a UEFA Champions League berth.
Boyd, who torched Wacker Innsbruck for a brace in the season-opening game for both teams, netted in the 51st minute, seven minutes after teammate Deni Alar had pulled Rapid Vienna level after a 43rd-minute own goal. He ran onto a looped ball over the back line and connected for a sliding volley from the center of the box to deliver the game-deciding strike.
Boyd, 21, now has 13 goals in all competitions in his first season playing top-flight soccer. He has scored in four of his last five games, only failing to score in Thursday's UEFA Europa League bout, a game which he entered as a 76th-minute substitute.
With the win, Rapid Vienna is level with second-place Salzburg on 38 points but trails on goal differential by three. The top two teams in the Austrian Bundesliga secure berths to the UEFA Champions League qualifying rounds. Click here for more details.