Angeles Dodgers win, 7–4. In a 9–7 losing effort against the San Francisco Giants, St. Louis Cardinals ace Bob Gibson makes his 242nd consecutive start. It is a new 20th-century record, passing that of Red Ruffing who never pitched in relief the last ten years of his career. May 9 – Johnny Bench of the Cincinnati Reds hit three home runs off Philadelphia's Steve Carlton for the second time in his career, in a 9–7 victory. Bench drove in seven runs. May 15 – Nolan Ryan of the California Angels pitches the first of his seven career no hitters, defeating the Kansas City Royals, 3–0. May 19 – The Atlanta Braves trade Andre Thornton to the Chicago Cubs in exchange for Joe Pepitone. May 24 – Willie Davis of the Los Angeles Dodgers gets 6 hits, all singles in a 7-3 19 inning loss to the New York Mets at Dodger Stadium. The record still stands as of 2017 for most hits in a game by a Dodgers player. June 7 – Dave Winfield of the University of Minnesota, the fourth pick in the June 1973 Major League Baseball draft, will go straight to the major leagues with the San Diego Padres. The Milwaukee Brewers use their third overall pick to select Robin Yount. June 9 – After the Old Timers' Game at Shea Stadium, Willie Mays puts on his own show with a home run and a circus catch, and the New York Mets top the Los Angeles Dodgers 4–2. For Mays, older than a half dozen of the old Mets, it is the 655th homer of his career. Rusty Staub drives in two runs to back Jon Matlack. In the Old Timers' Game, the Brooklyn Dodgers/New York Yankees team loses to the Mets 1–0 in two innings. June 13 – At Riverfront Stadium, St. Louis Cardinals pitcher Rick Wise loses a no-hitter when the Cincinnati Reds' Joe Morgan singles with one out in the ninth inning. It will be the only hit Wise allows in an 8–0 shutout win. Wise, who no-hit the Reds at Riverfront in , was bidding to join Addie Joss as the only pitchers to throw two no–hitters against the same team. June 19 In a Dodgers 4–0 victory over Cincinnati, Pete Rose (single) and Willie Davis (HR) each collect their 2,000th career hit. Dave Winfield debuts in a San Diego Padre 7-3 loss