» August 1, 1954:
The 55-game hitting streak of Waco (Big State)
OF Roman Mejias ends. He batted .435 during the streak (97 for 223).
» May 4, 1958: At Seals Stadium, light-hitting OF Roman Mejias of the Pirates hits three home runs in the opener with San Francisco to lead Pittsburgh to a 6–2 win. Mejias will hit just five homers this year. SF's two runs come on homers by Orlando Cepeda. The Giants win the nitecap 4–3 in 10 innings.
» April 10, 1962: The Houston Colt 45s begin play before 25,271 fans at Colt Stadium, a temporary facility, adjacent to the land for the Astrodome. Roman Mejias hits two 3-run home runs, and Bobby Shantz pitches Houston to an 11–2 win over the Cubs.
» November 25, 1962: Boston trades American League batting champ Pete Runnels to Houston for OF Roman Mejias.
» April 16, 1964: At Yankee Stadium, Whitey Ford pitches 11 innings in losing to the Red Sox, 4–3. Bob Tillman, with three singles, triples in the 11th, and pinch runner Roman Mejias scores on wild pitch. Bob Heffner pitches the bottom of the 11th, with Dick Radatz getting the win.