The 2015 Major League Baseball season began on April 5 with a Sunday night game between the St. Louis Cardinals and the Chicago Cubs at Wrigley Field, and ended on October 4.
The Major League Baseball All-Star Game's 86th edition was held on Tuesday, July 14 at Great American Ballpark in Cincinnati, Ohio, home of the Cincinnati Reds. The American League won the game 6–3, to give the American League home-field advantage in the World Series. The series was won by the Kansas City Royals.
This year, the Los Angeles Dodgers hosted the annual Civil Rights Game on April 15 against the Seattle Mariners, the first time the game was held on Jackie Robinson Day.^[1][2] The Dodgers won the game 5–2.
This is also Rob Manfred's first season serving as Commissioner of Baseball. Taken from https://en.wikipedia.org/wiki/2015_Major_League_Baseball_season

Final Stats:

Team	Manager	Most Hits	Most RBI's	Most Wins	Most Saves
STL	Mike Matheny	Jason Heyward	Matt Carpenter	Michael Wacha	Trevor Rosenthal
PIT	Clint Hurdle	Starling Marte	Andrew McCutchen	Gerrit Cole	Mark Melancon
CHC	Joe Maddon	Anthony Rizzo	Anthony Rizzo	Jake Arrieta	Hector Rondon
KCR	Ned Yost	Eric Hosmer	Kendrys Morales	Edinson Volquez	Greg Holland
TOR	John Gibbons	Josh Donaldson	Josh Donaldson	Mark Buehrle	Roberto Osuna
LAD	Don Mattingly	Adrian Gonzalez	Adrian Gonzalez	Zack Greinke	Kenley Jansen
NYM	Terry Collins	Curtis Granderson	Daniel Murphy	Bartolo Colon	Jeurys Familia
TEX	Jeff Banister	Prince Fielder	Prince Fielder	Colby Lewis	Shawn Tolleson
NYY	Joe Girardi	Chase Headley	Brian McCann	Nathan Eovaldi	Andrew Miller
HOU	A.J. Hinch	Jose Altuve	Evan Gattis	Dallas Keuchel	Luke Gregerson
LAA	Mike Scioscia	Mike Trout	Albert Pujols	Garrett Richards	Huston Street
SFG	Bruce Bochy	Buster Posey	Buster Posey	Madison Bumgarner	Santiago Casilla
WSN	Matt Williams	Bryce Harper	Bryce Harper	Max Scherzer	Drew Storen
MIN	Paul Molitor	Joe Mauer	Trevor Plouffe	Kyle Gibson	Glen Perkins
CLE	Terry Francona	Jason Kipnis	Carlos Santana	Carlos Carrasco	Cody Allen
BAL	Buck Showalter	Manny Machado	Chris Davis	Ubaldo Jimenez	Zach Britton
TBR	Kevin Cash	Evan Longoria	Evan Longoria	Chris Archer	Brad Boxberger
ARI	Chip Hale	A.J. Pollock	Paul Goldschmidt	Rubby De La Rosa	Brad Ziegler
BOS	John Farrell	Xander Bogaerts	David Ortiz	Wade Miley	Koji Uehara
SEA	Lloyd McClendon	Robinson Cano	Nelson Cruz	Felix Hernandez	Fernando Rodney
CHW	Robin Ventura	Jose Abreu	Jose Abreu	Chris Sale	David Robertson
DET	Brad Ausmus	Ian Kinsler	J.D. Martinez	Alfredo Simon	Joakim Soria
SDP	Pat Murphy	Matt Kemp	Matt Kemp	James Shields	Craig Kimbrel
MIA	Dan Jennings	Dee Gordon	Justin Bour	Tom Koehler	A.J. Ramos
COL	Walt Weiss	Nolan Arenado	Nolan Arenado	Jorge De La Rosa	John Axford
OAK	Bob Melvin	Billy Burns	Josh Reddick	Sonny Gray	Tyler Clippard
MIL	Craig Counsell	Jean Segura	Adam Lind	Jimmy Nelson	Francisco Rodriguez
ATL	Fredi Gonzalez	Nick Markakis	Freddie Freeman	Julio Teheran	Jason Grilli
CIN	Bryan Price	Brandon Phillips	Todd Frazier	Anthony DeSclafani	Aroldis Chapman
PHI	Pete Mackanin	Freddy Galvis	Ryan Howard	Aaron Harang	Jonathan Papelbon
Postseason
WorldSeries (4-1):	Kansas City Royals over New York Mets
ALCS (4-2):	Kansas City Royals over Toronto Blue Jays
NLCS (4-0):	New York Mets over Chicago Cubs
LDS (3-2):	Kansas City Royals over Houston Astros
LDS (3-2):	Toronto Blue Jays over Texas Rangers
LDS (3-1):	Chicago Cubs over St. Louis Cardinals
LDS (3-2):	New York Mets over Los Angeles Dodgers
WildCardGame (1-0):	Houston Astros over New York Yankees
WildCardGame (1-0):	Chicago Cubs over Pittsburgh Pirates
Most Runs per game: 5.5
Toronto Blue Jays
Fewest Runs allowed per game: 3.2
St. Louis Cardinals