McGwire takes the reins as the Dodger hitting coach after three successful seasons in the same position with the St. Louis Cardinals...during his time as hitting coach, St. Louis led the NL in batting average (.269), on-base percentage (.337) and batting average with runners in scoring position (.274), ranked second in runs (2,263), fourth in slugging percentage (.416) and third in OPS (.753) in the three-year span... the Cardinals ranked second, first and first in the NL the last three seasons in batting average and first in on-base percentage the last two seasons...McGwire's tenure in St. Louis was highlighted by the Cardinals' 2011 season, when St. Louis led the NL in batting average (.273), on-base percentage (.341), slugging percentage (.425, T-1st), OPS (.766) and runs scored (762), while striking out a National League-low 978 times en route to a World Series title.
In a 16-year Major League career with the Athletics and Cardinals, McGwire hit 583 home runs (363 with Oakland), the 10th-most in baseball history...in 1998, McGwire broke Roger Maris' single-season home run record, set in 1961, of 61 home runs on Sept. 8 against the Chicago Cubs' Steve Trachsel... McGwire went on to hit 70 home runs that season. He followed that up with 65 homers in 1999...a 12-time Major League All-Star and 1987 Rookie of the Year, McGwire was also named in 1999 to the Major League Baseball All-Century Team...McGwire also holds records for most home runs by a rookie (49) and career at-bats per home run (10.6)...in 1997, he became only the second Major Leaguer, after Babe Ruth, to hit 50 or more homers in consecutive seasons and he became the first player to hit 20 home runs with two different teams in one season, hitting 24 homers for the Cardinals after arriving in a July 31 trade from Oakland...in addition to breaking the single-season home record in 1998, McGwire led all Major Leaguers with a .752 slugging average, second in NL history to Rogers Hornsby's .756 average in 1925...he hit a game-winning homer in the ninth inning of Game 3 in 1988 World Series against the Dodgers and helped lead the A's to a World Series championship title run in 1989 when Oakland defeated the San Francisco Giants...hit an Oakland record and Major League-leading 52 home runs in 1996, becoming just the 14th player in Major League history to hit 50 home runs...was a first-round pick by the A's (10th overall selection) in the 1984 First-Year Player Draft out of the University of Southern California...McGwire was The Sporting News National Player of the Year, an All-American and Pac-10 Player of the Year in 1984 at USC, where he played for legendary coach and former Brooklyn Dodger Rod Dedeaux...was also a member of Team USA at the 1984 Olympics in Los Angeles.
Mark McGwire resides in Irvine with his wife, Stephanie, and their children, triplet girls Monet, Marlo and Monroe, and brothers Max and Mason. McGwire also has a 25-year-old son, Matt, from a previous marriage.