Bracket

General managers

Field managers

American League

National League

Batters

• Paulo Orlando (KC):
  • Became the first player since 1900 to record triples for his first three big league hits.^[27]
• Giancarlo Stanton (MIA):
  • Became the Marlins franchise leader in home runs after hitting his 155th career home run against the New York Mets on April 16. Stanton passed Dan Uggla to become the franchise leader.^[28]
• Mike Trout (LAA):
  • Became the youngest player in Major League history with 100 home runs and 100 stolen bases after hitting two home runs against the Houston Astros on April 17. At 23 years and 253 days old, Trout became the youngest player in history to reach the feat and broke the mark set by Alex Rodriguez (23 years, 309 days old).^[29]
• José Bautista (TOR):
  • Recorded his 250th career home run in the seventh inning against the Baltimore Orioles on April 21. He became the 210th player to reach this mark.^[30]
• David Ortiz (BOS):
  • Recorded his 550th career double in the eighth inning against the Toronto Blue Jays on April 28. He became the 27th player to reach this mark.^[31]
  • Recorded his 500th career home run in the fifth inning against the Tampa Bay Rays on September 12. He became the 27th player to reach this mark.^[32]
• Alex Rodriguez (NYY):
  • Tied Willie Mays for fourth all-time career home runs by hitting his 660th home run in the eighth inning against the Boston Red Sox on May 1. Rodriguez hit his home run off of Junichi Tazawa.^[33] Rodriguez passed Mays by hitting his 661st home run against the Baltimore Orioles on May 7. He hit his home run off of Chris Tillman.^[34]
  • Recorded his 2,000th career RBI with a two-run home run in the sixth inning against the Baltimore Orioles on June 13. He became the fourth player to reach this mark.^[35]
  • Recorded his 3,000th career hit with a home run in the first inning off of Justin Verlander and the Detroit Tigers on June 19. He became the 29th player to reach this mark.^[36]
  • Scored his 2,000th career run in the third inning on Carlos Beltrán's home run against the Chicago White Sox on September 24. He became the eighth player to reach this mark. Rodriguez also became the second player in Major League history to amass at least 3,000 hits, 2,000 RBIs and 2,000 runs scored in his career, joining Hank Aaron.^[37]
• Adrián Beltré (TEX):
  • Recorded his 400th career home run in the first inning against the Cleveland Indians on May 15. He became the 52nd player to reach this mark.^[38]
  • Tied a Major League record with his third career cycle on August 2. He becomes the fourth player to achieve this feat joining John Reilly, Babe Herman and Bob Meusel.^[39]
  • Became the all-time leader in games played for among natives of the Dominican Republic, passing Julio Franco with his 2,528th game played on August 23 against the Detroit Tigers.^[40]
  • Recorded his 550th career double in the ninth inning against the Oakland Athletics on September 12. He became the 28th player to reach this mark.^[41]
• Miguel Cabrera (DET):
  • Recorded his 400th career home run in the first inning against the St. Louis Cardinals on May 16. He became the 53rd player to reach this mark. Cabrera also became the all-time leader among Venezuelan-born players, passing Andrés Galarraga.^[42]
  • Recorded his 1,426th career RBI on August 16 to pass Andrés Galarraga for the most RBIs by a Venezuelan-born player.^[43]
• Adrián González (LAD):
  • Recorded his 1,000 career RBI on a two-run homer off Julio Teherán of the Atlanta Braves on May 27. He became the 279th player to reach this mark.^[44]
• Matt Holliday (STL):
  • Set National League record with 45 consecutive games to reach base to start a season on June 1 against the Milwaukee Brewers.^[45]
• Adam LaRoche (CWS):
  • Recorded his 250th career home run in the ninth inning against the Detroit Tigers on June 5. He became the 211th player to reach this mark.^[46]
• Prince Fielder (TEX):
  • Recorded his 300th career home run in the first inning against the Toronto Blue Jays on June 26. He became the 138th player to reach this mark. Prince and his father Cecil become the second father-son duo in Major League history to notch 300-plus homers, the other being Bobby and Barry Bonds.^[47]
• Curtis Granderson (NYM):
  • Recorded his 250th career home run in the third inning against the Cincinnati Reds on June 27. He became the 212th player to reach this mark.^[48]
• Ryan Howard (PHI):
  • Recorded his 350th career home run in the second inning against the Miami Marlins on July 19. He became the 92nd player to reach this mark.^[49]
• Albert Pujols (LAA):
  • Recorded his 550th career home run in the ninth inning against the Houston Astros on July 29. He became the 15th player to reach this mark. Pujols home run, which was his 30th of the season, became the sixth player in Major League history to log 13 career 30-homer seasons joining Hank Aaron, Barry Bonds, Alex Rodriguez, Babe Ruth and Mike Schmidt.^[50]
• Edwin Encarnación (TOR):
  • Recorded his 250th career home run in the third inning against the Minnesota Twins on August 6. He became the 213th player to reach this mark.^[51]
• Ryan Braun (MIL):
  • Recorded his 250th career home run in the first inning against the Chicago Cubs on August 12. He became the 214th player to reach this mark.^[52]
  • Became the Brewers' franchise leader in home runs by hitting his 252nd home run in the sixth inning on August 19 against the Miami Marlins. Robin Yount previously held the franchise record.^[53]
• Jimmy Rollins (LAD):
  • Recorded his 500th career double in the sixth inning against the Houston Astros on August 22. He became the 60th player to reach this mark.^[54]
• Carlos Beltrán (NYY):
  • Recorded his 500th career double in the fifth inning against the Boston Red Sox on August 31. He became the 61st player to reach this mark.^[55]
• Torii Hunter (MIN):
  • Recorded his 350th career home run in the first inning against the Chicago White Sox on September 13. He became the 93rd player to reach this mark.^[56]
• José Abreu (CWS):
  • Became the second player in Major League history to record at least 30 home runs and 100 RBIs in each of his first two seasons. Abreu reached these numbers by driving in two runs in the seventh inning against the Kansas City Royals on October 1. He joins Albert Pujols who accomplished this during the 2001 and 2002 seasons.^[57]
• Carlos Correa (HOU):
  • Set the Astros' franchise record for most home runs by a rookie when he hit his 22nd of the season on October 1 against the Arizona Diamondbacks. He broke the record that was set by Lance Berkman in 2000.^[58]
• Adalberto Mondesi (KC):
  • Became the first major-leaguer to make his debut in the World Series when he pinch-hit for Danny Duffy in Game 3 of the 2015 World Series.

Pitchers

Miscellaneous

• On April 29, for the first time in Major League Baseball history, the Baltimore Orioles and the Chicago White Sox played before an empty stadium because of the civil unrest in the city. Fans were not allowed in the stadium, though some watched from outside. The Orioles won, 8–2.
• On August 11, for the first time in Major League history, all 15 home teams won on the same day. Prior to this, the most games ever won by home teams on the same day was 12 games. That record came more than a century ago, on May 23, 1914, according to Elias Sports Bureau.^[85]
• On August 9, the New York Yankees Major League record of 2,665 consecutive games played without having been held scoreless, in back-to-back contests, was snapped when Toronto Blue Jays pitcher Marco Estrada tossed a 2–0 shutout win at Yankee Stadium. Left-handed pitcher David Price blanked New York, 6–0, on the previous day.^[86]
• On August 13, the Toronto Blue Jays became the first Major League franchise since the 1954 Cleveland Indians to have compiled two different 11-game winning streaks within the same season.^[87]
• On September 19, Mike Matheny of the St. Louis Cardinals became the first manager in MLB history to guide his club to a playoff appearance in each of his first four seasons as manager.^[88]
• On October 1, the New York Yankees made the postseason for the 52nd time in franchise history with their 4–1 victory against the Boston Red Sox. The win also coincided with the 10,000th victory in franchise history, becoming the eighth Major League and first American League club to attain this feat.^[89]
• On October 12, the Chicago Cubs set a postseason record for most home runs hit during a game by hitting six against the St. Louis Cardinals.^[90] Also, there were a total of 21 home runs hit which also set a single-day postseason record.^[91]

Regular season

Other awards

• The Sporting News Player of the Year Award: Josh Donaldson (TOR)
• Comeback Players of the Year: Prince Fielder (TEX, American); Matt Harvey (NYM, National)
• Edgar Martínez Award (Best designated hitter): Kendrys Morales (KC)
• Hank Aaron Award: Josh Donaldson (TOR, American); Bryce Harper (WSH, National)
• Roberto Clemente Award (Humanitarian): Andrew McCutchen (PIT)
• Mariano Rivera AL Reliever of the Year Award (Best AL reliever): Andrew Miller (NYY)
• Trevor Hoffman NL Reliever of the Year Award (Best NL reliever): Mark Melancon (PIT)
• Warren Spahn Award (Best left-handed pitcher): Dallas Keuchel (HOU)

Monthly Awards

Wholesale changes

The New York Mets changed their home jersey from a cream shade to white and took away the home white alternate jersey.^[121]

The Minnesota Twins took away the pinstripes from their home jersey and added a gold trim to the "Twins" wordmark. A hat was also added highlighting the "Twin Cities" logo in gold.^[122]

The Pittsburgh Pirates introduced a new camouflage alternate jersey in honor of the U.S. Military which will be worn during all Thursday home games. A new camo-style hat also accompanies this uniform with a black bill and black "Pittsburgh" logo.^[123]

The Seattle Mariners have added an alternate cream color jersey with blue and yellow, the original colors of the team from 1977–1992. An alternate light blue hat with a gold "Seattle" logo will accompany the uniform as well.

The San Francisco Giants have added an alternate black jersey, featuring a new alternate logo depicting the Golden Gate Bridge.

The Cleveland Indians darkened the shade of navy blue in their caps and jerseys.

Anniversaries and special events

The following teams wore commemorative patches for special occasions:

Throwbacks

The Astros and Angels wore 1965 uniforms on April 18 to mark the 50th anniversary of the Astrodome and the 50th anniversary of the renaming of the team to Astros.

The Reds and Cubs wore 1990 uniforms on April 24 to mark the 25th anniversary of the Reds' winning the 1990 World Series.

The Tigers and Indians wore Negro league throwbacks on April 25. The Tigers wore the uniforms of the Detroit Stars, while the Indians wore the uniforms of the Cleveland Buckeyes.

The Red Sox wore their 1975 home uniforms on May 5 to mark the 40th anniversary of the club's 1975 AL Championship and trip to the 1975 World Series. The uniforms had the Massachusetts bicentennial patch.

The Mariners and Red Sox wore Negro league throwbacks on May 16. The Red Sox wore the uniforms of the Boston Royal Giants, and the Mariners wore the uniforms of the Seattle Steelheads.

The Cubs and Royals wore 1915 Federal League throwbacks on May 31 (originally, they were supposed to have worn them on May 30, but the game was postponed due to rain). The Cubs wore the uniforms of the Chicago Whales, while the Royals wore the uniforms of the Kansas City Packers.

The Cardinals and Phillies wore 1960s throwbacks on June 19. The Cardinals wore 1961 uniforms, which did have the players' numbers on the fronts of the shirts. The Phillies wore 1969 throwbacks.

The Mets and Braves wore Negro league throwbacks on June 20. The Mets wore the uniforms of the Brooklyn Royal Giants, while the Braves wore the uniforms of the 1938 Atlanta Black Crackers.

The Red Sox wore their 1975 road uniforms on June 27 against the Rays. The Rays, meanwhile, wore their "fauxback" jerseys, which have a retro feel yet never actually were worn regularly because the franchise did not exist back then.

The Athletics wore 1965 Kansas City Athletics uniforms June 27. Ironically, the Kansas City Royals were their opponents.

The Pirates and Brewers wore Negro league throwbacks on July 18. The Pirates wore the uniforms of the Pittsburgh Crawfords, while the Brewers wore the uniforms of the Milwaukee Bears.

The Rangers and Astros wore 1980s throwbacks on July 18 as part of a 1980s night promotion at Minute Maid Park.

The Cardinals and Royals wore 1985 uniforms on July 23 to mark the 30th anniversary of the 1985 World Series. They were supposed to be worn on June 14, but that game was postponed due to rain.

The Cubs and White Sox wore 1959 uniforms on August 14 in honor of Minnie Miñoso at US Cellular Field. Each of the White Sox players wore Minoso's number 9.

The Cubs and Tigers wore 1945 uniforms on August 19 to mark the 70th anniversary of the 1945 World Series.

The White Sox wore 1976 uniforms on August 27.

Other uniforms

Players, coaches, and umpires at all games wore #42 on April 15, the 68th anniversary of Jackie Robinson's debut in the majors.

The Giants wore uniforms with gold "Giants" script lettering and numbering on April 18 to celebrate their 2014 World Series title.

On April 20 (Patriots' Day), the Boston Red Sox wore home white jerseys with "BOSTON" written on the front to mark the two year anniversary of the Boston Marathon bombings. The uniform also sported the 2013 navy-blue circular patch with a white border on the left shoulder saying "B Strong" (with the red B in the classic font featured on the Red Sox's caps).

The Milwaukee Brewers wore their batting practice jerseys as an alternate on April 21. The front has the Brewers' "M" logo on front, and has gold trim on the side.

The Giants wore Spanish-language "Gigantes" uniforms on May 5, Cinco de Mayo.

The Orioles wore a special uniform May 11, the first game at Camden Yards with spectators since April 26 due to the riots that took place in the city in April. The uniforms were in their home whites, but had their road "Baltimore" script on the front instead of the usual "Orioles".

The Reds wore camouflage uniforms and caps on May 16 and June 6. The uniforms had the "Reds" script on the front, instead of the player's number and the Reds' logo.

All teams wore camouflage uniforms on May 25, Memorial Day in the United States. Although Memorial Day is not a legal holiday in Ontario, the Blue Jays wore camouflage.

The Reds wore green caps and uniforms on June 19 as part of a "Shamrock the Ballpark" promotion. Like the camouflage uniforms, the uniforms had the "Reds" script on the front, instead of the player's number and the Reds' logo; the uniforms have a shamrock on the right sleeve, instead of the Mr. Redlegs mascot.

The Blue Jays wore a special uniform on Canada Day. July 1. The uniform had the Blue Jays wordmark in red, instead of blue. They had the Canadian flag on their right sleeve. The Red Sox, their opponent, wore a Canadian flag on their uniform as well. The uniform was worn again on August 30.

All teams wore American flag-themed caps and uniforms on July 4, Independence Day in the United States. The uniforms had an American flag on a sleeve. The logos and players' numbers had stars on them; the caps had a star instead of a baseball on the MLB logo. The Blue Jays wore a jersey with both the U.S. and Canadian flags.

The Royals and the Astros wore Spanish-language "Los Reales" and "Los Astros" uniforms on July 25.

The Tigers wore Spanish-language "Tigres" uniforms August 8. The uniforms were based on the Tigers' 1960 uniforms.

The Reds and the Diamondbacks wore Spanish-language "Los Rojos" and "Los D-backs" uniforms August 21.

The Mets wore camouflage uniforms on August 31.

The Mariners wore Spanish-language "Marineros" uniforms on September 12.

The Astros wore Spanish-language "Los Astros" uniforms on September 27.

National

Local

The Chicago Cubs opted to re-negotiate their terrestrial television contracts for the 2015 season through 2019, when all the Cubs' television rights contracts will expire, including their cable deal with Comcast SportsNet Chicago. WGN-TV will still hold rights to 45 Cubs games per season, and its overflow broadcasts will move to WPWR-TV in place of WCIU-TV. WGN will be joined by ABC-owned station WLS-TV, which will now broadcast 25 games per season.^{[133][134][135]} Broadcast Cubs games among the three stations in the market, along with White Sox games (which will also have games move from WCIU to WPWR) will be carried in the Indianapolis market among Media General's duopoly of WISH-TV and WNDY-TV, in addition to a regional network in Iowa and downstate Illinois.^[136]

The cable network WGN America will no longer carry Chicago White Sox or Chicago Cubs games, as the network has phased out Chicago sports programming as part of its transition towards becoming a nationally focused entertainment network. This brings an end to the "superstation" era of cable broadcast, started in 1976 when WTCG (later to become WTBS) broadcast Atlanta Braves games, followed by WGN and other stations such as WOR-TV (New York Mets), WSBK-TV (Boston Red Sox) and KTLA (California Angels) airing simulcasts via satellite or cable.

After an absence of over a decade, New York Yankees telecasts will return to WPIX, sharing time with the Mets after WWOR-TV gave up its contract due to the rejection of a contract extension. Both teams' games on WPIX will still be produced by the YES Network and SportsNet New York respectively.

Local

WBBM became the radio home of the Chicago Cubs starting in April 2015 after long time home WGN gave up the broadcasting rights after 90 years.

WJZ-FM, for the second time, became the flagship radio station for the Baltimore Orioles. WJZ-FM held the rights for the 2009 and 2010 seasons.