In the other interleague doubleheader, the Orioles win two from the Pirates, 5 – 1 and 6 -5, with Matt Wieters hitting a 10th-inning walk-off homer in the nitecap; 3B Manny Machado makes his return to the field in the second game after missing the first month of the season. Finally, the Rays defeat Boston twice in Fenway Park, 2 – 1 and 6 – 5, as Red Sox pitchers issue 18 walks in the two games.

On May 1, 2014 — In the other interleague doubleheader, the Orioles win two from the Pirates, 5 – 1 and 6 -5, with Matt Wieters hitting a 10th-inning walk-off homer in the nitecap; 3B Manny Machado makes his return to the field in the second game after missing the first month of the season. Finally, the Rays defeat Boston twice in Fenway Park, 2 – 1 and 6 – 5, as Red Sox pitchers issue 18 walks in the two games.

Source
Baseball Reference May 1