April 1, 2021: Opening Day for 2021 season
April 15, 2021: Jackie Robinson Day
June 2, 2021: Lou Gehrig Day
July 11-13, 2021: MLB Draft
July 25, 2021: Hall of Fame induction ceremony
Aug. 12, 2021: MLB at Field of Dreams presented by GEICO (White Sox vs. Yankees in Dyersville, Iowa, on FOX)
Aug. 22, 2021: MLB Little League Classic presented by GEICO (Angels vs. Indians in Williamsport, Penn.)
Feb. 28, 2021: First Spring Training games
Jan. 26, 2021: Hall of Fame voting results announced
Jan. 15, 2021: International signing period begins
Dec. 10, 2020: Rule 5 Draft
Dec. 9, 2020: All-MLB Team announced
Dec. 8, 2020: Hank Aaron Award winners announced
Dec. 7, 2020: Roberto Clemente Award winner announced
Dec. 2, 2020: Non-tender deadline, 8 p.m. ET
Nov. 16, 2020: 2021 Hall of Fame ballot announced
Nov. 12, 2020: Most Valuable Player Awards announced
Nov. 11, 2020: Cy Young Awards announced
Nov. 11, 2020: Deadline for players to accept or reject qualifying offer, 5 p.m. ET
Nov. 10, 2020: Managers of the Year announced
Nov. 9, 2020: Jackie Robinson Rookies of the Year announced
Nov. 3, 2020: Rawlings Gold Glove winners announced
Nov. 2, 2020: BBWAA Awards finalists announced
Oct. 20, 2020: World Series begins
Oct. 12, 2020: NLCS begins
Oct. 11, 2020: ALCS begins
Oct. 6, 2020: NLDS begins
Oct. 5, 2020: ALDS begins
Sept. 30, 2020: NL Wild Card Series begins
Sept. 29, 2020: Postseason begins with AL Wild Card Series
Sept. 27, 2020: Regular season concludes
Sept. 15, 2020: Deadline for players to be added to Major League roster for postseason eligibility
Sept. 9, 2020: Roberto Clemente Day
Aug. 31, 2020: Trade Deadline
Aug. 28, 2020: Jackie Robinson Day celebration
Aug. 16, 2020: MLB to honor 100th anniversary of Negro Leagues
July 24, 2020: Opening Day
July 24, 2020: First game at Globe Life Field in Arlington, Rockies vs. Rangers at 8 p.m. ET
July 23, 2020: Opening Night
July 3, 2020: Full baseball activities and first workouts allowed at training camps
July 1, 2020: Training camp reporting date
June 28, 2020: Deadline for submission of Club Player Pool to MLB, 4 p.m. ET
June 26, 2020: Transaction freeze ends, noon ET
June 10-11, 2020: MLB Draft
April 15, 2020: Jackie Robinson Day