Aug. 31 — Last day to be contracted to an organization and be eligible for postseason roster.
Oct. 2-3 — Wild-card games.
Oct. 4 — Division Series start.
Oct. 12 — League Championship Series start.
Oct. 23 — World Series starts.
November TBA — Deadline for teams to make qualifying offers to their eligible former players who became free agents, fifth day after World Series.
November TBA — Deadline for free agents to accept qualifying offers, 15th day after World Series.
Nov. 6-8 — General managers’ meetings, Carlsbad, Calif.
Nov. 8-15 — All-Star tour of Japan.
Nov. 14-15 — Owners’ meetings, Atlanta.
Nov. 26-29 — Major League Baseball Players Association executive board meeting, Irving, Texas.
Nov. 30 — Last day for teams to offer 2019 contracts to unsigned players on their 40-man rosters.
Dec. 9 — Hall of Fame Today’s Game committee vote announced, Las Vegas.
Dec. 10-13 — Winter meetings, Las Vegas.
Jan. 11 — Salary arbitration figures exchanged.
Feb. 1-20 — Salary arbitration hearings, St. Petersburg, Fla.
March 20-21 — Opening series, Seattle vs. Oakland at Tokyo.
June 29-30 — New York Yankees vs. Boston at London.