On October 13, 1970 — In Game 3 of the Fall Classic played at Memorial Stadium, Dave McNally goes deep with the bases loaded in the bottom of the sixth inning off the Reds’ right-hander Wayne Granger, becoming the first pitcher in World Series history to hit a grand slam. The Orioles’ hurler’s offensive output contributes to the Birds’ 9-3 victory over Cincinnati and gives Baltimore a commanding 3-0 game advantage in the seven-game series.

McNally pitching a complete game and scattering nine hits,.

Baltimore third baseman Brooks Robinson added to his highlight reel with a spectacular display of fielding. After Pete Rose and Bobby Tolan led the game off with consecutive hits, Robinson made a sensational, leaping grab of Tony Pérez’s hopper, stepped on third and fired to first for a double play. In the second inning, Robinson snagged a slow grounder hit by Tommy Helms and threw out the sprinting second baseman. And in the sixth, Robinson made a diving catch of a line drive by Johnny Bench. The Memorial Stadium fans gave Robinson a standing ovation as he came to bat in the bottom of the sixth. He responded by doubling to left.

The Orioles got two runs in the first on Brooks Robinson’s bases-loaded double off of Tony Cloninger. The Reds cut it to 2–1 in the second when Hal McRae singled, moved to second on a groundout and scored on Dave Concepcion’s single, but Frank Robinson’s home run in the third gave the Orioles that run back. Don Buford’s home run in the fifth extended their lead to 4–1. Next inning Dave McNally’s grand slam off of Wayne Granger blew the game open and put the Orioles up 8–1. The Reds got two runs in the seventh on Dave Concepcion’s sacrifice fly and Pete Rose’s RBI single, but the Orioles got a run in the bottom half on Paul Blair’s RBI double off of Don Gullett. The Orioles took a commanding 3–0 series lead with a 9–3 win.