He obtained a promotion to the Mets' major league roster on August 6, his 22nd birthday.
Pitcher Bobby Parnell was placed on the disabled list with a herniated disk in his neck to make room for Flores on the roster.
He made his debut that day against the Colorado Rockies at Citi Field going 0-for-4 at the plate and committing an error in the sixth inning in what would be a 3–2 Mets win.
On August 7, he notched his first career major league hit, a single in the bottom of the second inning off Rockies pitcher Jhoulys Chacín.
In the bottom of the eight inning, with bases loaded, he hit a base clearing double off pitcher Manny Corpas for his first three major league RBIs.
The Mets would go on to win 5–0.
On August 11, he hit his first career home run, a solo home run to right field off Arizona Diamondbacks pitcher Heath Bell in the top of the ninth inning to extend the Mets lead to 9–5 by which the Mets won.
1991
Wilmer Alejandro Flores Garcia (born August 6, 1991), nicknamed "Catire", is a Venezuelan professional baseball infielder for the San Francisco Giants of Major League Baseball (MLB).
Wilmer Alejandro Flores Garcia was born on August 6, 1991, in Valencia, Venezuela, to Soledy García and Wilmer Flores.
Growing up in Valencia, Venezuela, Flores first picked up a bat at age 6 and taught himself how to swing.
After he turned 13 an agent, impressed with his power, steered him toward the nearby Agua Linda Academy.
There, Flores received formal instruction for the first time.
He has two brothers also named Wilmer Flores, one of whom is a pitcher in the Detroit Tigers organization.
2007
On his 16th birthday in 2007, Flores signed as an international free agent with the New York Mets, and he made his major league debut with them in 2013.
He has previously played in MLB for the Mets and the Arizona Diamondbacks.
Flores signed as an international free agent with the New York Mets on August 6, 2007, his 16th birthday.
With his $750,000 signing bonus, he bought his mother a new Hyundai Sonata that he did not know how to drive.
2008
He also was named to the Baseball America Rookie All-Star Team (2008), the APP Postseason All-Star Team (2008), the MiLB.com Organization All-Star Team (2010), and the South Atlantic League All-Star Team (2010).
2009
He was rated in the Top 100 prospects by Baseball America prior to the 2009 (#47), 2010 (#88), and 2011 (#59) seasons.
Flores started at second base for the World team at the 2009 All-Star Futures Game.
2011
In 2011, the Mets sent Flores back to the St. Lucie Mets of the Class A-Advanced Florida State League (FSL) to convert him from a shortstop into a third baseman.
2012
In 2012, Flores was selected at third base for the FSL All-Star Game.
He went 3-for-4 with a run scored and three runs batted in, earning Most Valuable Player honors.
He also appeared in the All-Star Futures Game for the second time in his career.
The Mets promoted Flores to the Binghamton Mets of the Class AA Eastern League during the 2012 season.
He finished the 2012 season with Binghamton batting .311/.361/.494 in 66 games with eight home runs, 33 RBIs, and 20 walks.
2013
Flores began the 2013 season with the Las Vegas 51s of the Class AAA Pacific Coast League.
He finished batting .321/.357/.531 in 107 games with 15 home runs, 86 RBIs, and 25 walks.
He finished the 2013 season appearing in 27 games with a batting average of .211 in 95 at-bats in 101 plate appearances while compiling 20 hits, 13 RBIs, one home run, five walks, eight runs scored, and striking out 23 times.
2014
Flores started the 2014 season with the Las Vegas 51s in AAA, but was called up April 2 along with Kyle Farnsworth in order to replace Bobby Parnell going to the disabled list and with Daniel Murphy on paternity leave.
He would be re-sent back to the 51s on April 6 to make room for Jon Niese coming off the disabled list.
Flores had only started one game at second base going 0-for-4 with two strikeouts.
He was recalled on May 9 with Omar Quintanilla being designated for assignment.
On June 2, Flores drove in a career high 6 RBIs during which he also hit his first career grand slam against the Philadelphia Phillies at Citizens Bank Park.
The grand slam came in the top of the ninth inning off pitcher Phillippe Aumont with two outs extending the lead 11–2 to which the Mets won to.
On June 26, Flores was once again re-sent down to the 51s to make room for Juan Lagares coming off the disabled list.
He was recalled for good on July 24 with Kirk Nieuwenhuis being sent to the 51s.
Flores finished the 2014 season appearing in 78 games with a batting average of .251 in 259 at-bats in 274 plate appearances while compiling 65 hits, 29 RBIs, 6 home runs, 12 walks, 28 runs scored and striking out 31 times.
2015
Flores made the Mets' roster for Opening Day in 2015.
During the first week of the season, Flores struggled offensively and defensively as he made three errors and batted .158 in seven games.
