» April 28, 1966: Cleveland ties the modern major-league record with its 10th straight win since Opening Day. Sonny Siebert defeats the Angels 2–1. Cleveland will lose tomorrow to the White Sox's Gary Peters, 4-1.
» May 4, 1966:
Tribe SS Larry Brown and LF Leon Wagner are both hurt in a severe collision at Yankee Stadium. Brown suffers a fractured skull, cheekbone, and nose. Wagner receives a broken nose and slight concussion. Cleveland wins, 2–1, behind starter Sonny Siebert.
» June 10, 1966: Sonny Siebert pitches a no-hitter against the Senators. Leon Wagner homers off loser Phil Ortega, as first-place Cleveland wins 2–0.
» April 19, 1969:
Boston trades last year's 1B Ken Harrelson and pitchers Dick Ellsworth and Juan Pizarro to Cleveland for pitchers Sonny Siebert and Vincente Romo and C Joe Azcue.
» July 2, 1970: Detroit's Joe Niekro no-hits the Yankees until Horace Clarke singles in the 9th inning. The Tigers win 5–0. This is the 3rd time in the month that Clarke has broken up a no-hitter, having spoiled bids by KC's Jim Rooker (June 4th) and Boston's Sonny Siebert (June 19th).
» July 4, 1970:
At Fenway, Tony Conigliaro & Billy Conigliaro homer for the Red Sox in a 5–1 win over the Indians. Sonny Siebert is the winner.
» July 31, 1970: At California, Boston's Sonny Siebert beats the Angels, 2–0, on one hit, a 3rd inning single by Jay Johnstone.
» September 11, 1970:
Sonny Siebert and Jim Palmer each pitch 12 innings, but Eddie Watt gets the win for Baltimore by pitching the 13th in the 3–2 win. Boston's Sparky Lyle is the loser giving up hits to the two batters he faces.
» September 2, 1971:
Sonny Siebert hits and pitches the Red Sox to a 3–0 win over the Orioles. Siebert hits two home runs, the last American League pitcher to do so.
» July 9, 1972: The Angels' Nolan Ryan strikes out 16 batters, including an American League-record eight in a row and three on nine pitches in the 2nd inning, as he stops the Red Sox on one hit. Carl Yastrzemski's one-out single in the 1st is only hit: Ryan then racks up his eight K's and retires the last 26 consecutive batters. Sonny Siebert loses the 3–0 battle. For Ryan, he is the 3rd pitcher to twice fan the side on nine pitches.
» November 18, 1974: In a three-way deal, San Diego trades slugger Nate Colbert to Detroit for Ed Brinkman, Bob Strampe and Dick Sharon. Brinkman is then packaged with Danny Breeden and shipped to St. Louis, and the Cards send pitchers Allan Foster, Rich Folkers, and Sonny Siebert to the Pads. None of the new Padres have a prayer, while the ailing Colbert, who set a record in 1972 by driving in 22.75% of his team's runs, will prove that his 1974 average of .207 was no fluke. He and Brinkman will play for three teams in 1975.