Going deep in the fourth inning off Carl Erskine in the team's 3-2 victory over the Dodgers at Forbes Field, Pirates first baseman Dale Long establishes a major league record by hitting his eighth home run in eight games. Yankee first baseman Don Mattingly (1987) and Mariner outfielder Ken Griffey, Jr. (1993) will also match the accomplishment.
The National League gives Walter O'Malley and Horace Stoneham permission to negotiate deals with cities on the West Coast, with the proviso that the future location of their respective clubs, the Dodgers and the Giants, be known by October 1st. The Brooklyn and New York owners deny there is any significance to the unanimous vote other than an opportunity to explore all the available options for the possible relocation of their clubs.
The day after becoming a father, Randy Hundley hits a grand slam and a double, driving in five runs in the Cubs' 9-8 victory over the Giants at Candlestick Park. The Chicago backstop's eight-pound, four-ounce baby boy named Todd will follow in his footsteps, becoming a major league catcher, receiving for the Mets, Dodgers, and Cubs.
With runners on second and third, no outs, and the Mets and Dodgers tied at 3-3 in the 12th inning, home plate umpire Bob Davidson calls a balk against Roger McDowell. Dave Anderson scores the winning run in the Chavez Ravine contest when the New York reliever fails to pause and make a discernible stop.
Milwaukee stops the Diamondbacks' team-record 11-game home winning streak when Marquis Grissom's 11th-inning single proves to be the difference in the team's 4-3 loss at Bank One Ballpark. Arizona winning ways started on May 5th with the team sweeping consecutive three-game series from their division rivals, the Padres and Dodgers, and continuing after the team returned to Arizona after a 3-6 road trip, with three victories against the Pirates and two from the Brewers.
In an 11-inning slugfest with Colorado, LA catcher Paul Lo Duca goes 6-for-6 in the 11-10 victory at Dodger Stadium. The backstop's five singles and a three-run homer tie a National League record for hits in an extra-inning game.
During a game against Florida, fans vacate a section of upper deck seats at Dodger Stadium due to a small fire in a nearby storage area. With plumes of smoke visible coming from the top level of the ballpark on the first base side, the public address announcer informs the crowd that evacuation of the entire stadium will not be necessary.