Johnathan Mackensey Williamson (born July 15, 1990) is an American former professional

baseball Baseball is a bat-and-ball games, bat-and-ball sport played between two team sport, teams of nine players each, taking turns batting (baseball), batting and Fielding (baseball), fielding. The game occurs over the course of several Pitch ...

outfielder An outfielder is a person playing in one of the three defensive positions in baseball or softball, farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder. As an outfielder, their duty is to catch ...

. He played in the

Major League Baseball Major League Baseball (MLB) is a professional baseball league composed of 30 teams, divided equally between the National League (baseball), National League (NL) and the American League (AL), with 29 in the United States and 1 in Canada. MLB i ...

(MLB) for the

San Francisco Giants The San Francisco Giants are an American professional baseball team based in San Francisco. The Giants compete in Major League Baseball (MLB) as a member club of the National League (baseball), National League (NL) National League West, West Div ...

and

Seattle Mariners The Seattle Mariners are an American professional baseball team based in Seattle. The Mariners compete in Major League Baseball (MLB) as a member club of the American League (AL) American League West, West Division. The team joined the American ...

, and in the

KBO League The KBO League () is a professional baseball league in South Korea. The league comprises ten teams. The KBO League was founded with six franchises in 1982 and is the most popular sports league in South Korea. The Kia Tigers are the most success ...

for the

Samsung Lions The Samsung Lions () are a South Korean professional baseball team founded in 1982. They are based in the southeastern city of Daegu and are members of the KBO League. Their home stadium is Daegu Samsung Lions Park. They have won the Korean Cha ...

. Williamson played

college baseball College baseball is baseball that is played by Student athlete, student-athletes at institutions of higher education. In the United States, college baseball is sanctioned mainly by the National Collegiate Athletic Association (NCAA); in Japan, ...

Wake Forest University Wake Forest University (WFU) is a private research university in Winston-Salem, North Carolina, United States. Founded in 1834, the university received its name from its original location in Wake Forest, north of Raleigh, North Carolina. The R ...

Career

Williamson attended Wake Forest-Rolesville High School in

Wake Forest, North Carolina Wake Forest is a town in Wake and Franklin counties in the U.S. state of North Carolina. Located almost entirely in Wake County, it lies just north of the state capital, Raleigh. At the 2020 census, the population was 47,601, up from 30,117 in ...

. He played for the school's baseball team as a

pitcher In baseball, the pitcher is the player who throws ("Pitch (baseball), pitches") the Baseball (ball), baseball from the pitcher's mound toward the catcher to begin each play, with the goal of out (baseball), retiring a batter (baseball), batter, ...

, and was rated the best pitching prospect in the state of North Carolina. He chose to enroll at

to play

for the

Wake Forest Demon Deacons The Wake Forest Demon Deacons are the college athletics in the United States, intercollegiate athletic teams that represent Wake Forest University, located in Winston-Salem, North Carolina. They compete at the National Collegiate Athletic Assoc ...

. He redshirted as a freshman, and played for Wake Forest as an

. The

Boston Red Sox The Boston Red Sox are an American professional baseball team based in Boston. The Red Sox compete in Major League Baseball (MLB) as a member club of the American League (AL) American League East, East Division. Founded in as one of the Ameri ...

chose Williamson in the 46th round of the 2011 MLB Draft, but he decided to return to Wake Forest for his senior year.

San Francisco Giants

In the

2012 MLB draft The 2012 Major League Baseball draft was held from June 4 through June 6, 2012, from Studio 42 of the MLB Network in Secaucus, New Jersey. The Houston Astros, with the first overall pick, selected Carlos Correa from the Puerto Rico Baseball Ac ...

, the

selected Williamson in the third round, with the 115th overall selection. He signed with the Giants, beginning his professional career in the

Rookie-level Minor League Baseball (MiLB) is a professional baseball organization below Major League Baseball (MLB), constituted of teams affiliated with MLB clubs. It was founded on September 5, 1901, in response to the growing dominance of the National L ...

Arizona League The Arizona Complex League (ACL) is a rookie-level Minor League Baseball league that operates in and around Phoenix, Arizona, since 1988. Prior to 2021, it was known as the Arizona League (AZL). Along with the Florida Complex League (FCL), it fo ...

, hitting two

home run In baseball, a home run (abbreviated HR) is scored when the Baseball (ball), ball is hit in such a way that the batting (baseball), batter is able to circle the bases and reach home plate safe (baseball), safely in one play without any error ( ...

s in 19

plate appearance In baseball, a player is credited with a plate appearance (denoted by PA) each time he completes a turn batting. Under Rule 5.04(c) of the Official Baseball Rules, a player completes a turn batting when he is put out or becomes a runner. This ha ...

s. The Giants then promoted Williamson to the Salem-Keizer Volcanoes of the

Class A-Short Season Class A Short Season (officially Short-Season A) was a level of play in Minor League Baseball in the United States from 1965 through 2020. In the hierarchy of minor league classifications, it was below Triple-A, Double-A, Class A-Advanced (crea ...

Northwest League The Northwest League is a Minor League Baseball league that operates in the Northwestern United States and Western Canada. A Class A Short Season league for most of its history, the league was promoted to High-A as part of Major League Baseba ...

, where he hit seven home runs in 125 plate appearances. In 2013, the Giants assigned Williamson to the San Jose Giants of the

Class A-Advanced High-A, officially Class High-A, formerly known as Class A-Advanced, and sometimes abbreviated "A+" in writing, is the third-highest level of play in Minor League Baseball in the United States and Canada, below Triple-A (baseball), Triple-A and D ...

California League The California League is a Minor League Baseball league that operates in California. Having been classified at various levels throughout its existence, it operated at Class A-Advanced from 1990 until its demotion to Single-A following Major Leagu ...

. He hit 25

s for San Jose. In 2014, he was invited to his first

spring training Spring training, also called spring camp, is the preseason of the Summer Professional Baseball Leagues, such as Major League Baseball (MLB), and it is a series of practices and exhibition games preceding the start of the regular season. Spri ...

. Though the Giants wanted to assign Williamson to the

Richmond Flying Squirrels The Richmond Flying Squirrels are a Minor League Baseball team based in Richmond, Virginia. The team, which is a part of the Eastern League, is the Double-A affiliate of the San Francisco Giants major league club, and plays at The Diamond. Th ...

of the

Class AA Double-A (officially Class AA) is the second-highest level of play in Minor League Baseball in the United States since 1946, below only Triple-A. There are currently 30 teams classified at the Double-A level, one for each team in Major League B ...

Eastern League to start the 2014 season, an elbow injury led them to keep him in San Jose, where he could still play as a

designated hitter The designated hitter (DH) is a baseball player who bats in place of another position player, most commonly the pitcher. Unlike other players in a team's lineup, they generally only play as an offensive player and usually do not play defense as ...

. After beginning the season with a .318

batting average Batting average is a statistic in cricket, baseball, and softball that measures the performance of batters. The development of the baseball statistic was influenced by the cricket statistic. Cricket In cricket, a player's batting average is ...

and three home runs, Williamson went on the

disabled list In Major League Baseball (MLB), the injured list (IL) is a method for teams to remove their injured players from the roster in order to summon healthy players. Before the 2019 Major League Baseball season, 2019 season, it was known as the disabl ...

with a torn ulnar collateral ligament of the elbow and had

Tommy John surgery Ulnar collateral ligament reconstruction, sometimes referred to as Tommy John surgery is a surgical graft procedure where the ulnar collateral ligament in the medial elbow is replaced with either a tendon from elsewhere in the patient's body, ...

, ending his 2014 season. Williamson would go on to fully recover from the surgery without complication. In 2015, he began the season with Richmond and the Giants promoted him to the

Sacramento River Cats The Sacramento River Cats are a Minor League Baseball team of the Pacific Coast League (PCL) and are the Triple-A (baseball), Triple-A affiliate of the San Francisco Giants. Prior to 2015, the River Cats were the Triple-A affiliate of the Oakland ...

of the

Class AAA Triple-A (officially Class AAA) has been the highest level of play in Minor League Baseball in the United States since 1946. Currently, two leagues operate at the Triple-A level, the International League (IL) and the Pacific Coast League (PCL). ...

Pacific Coast League The Pacific Coast League (PCL) is a Minor League Baseball league that operates in the Western United States. Along with the International League, it is one of two leagues playing at the Triple-A (baseball), Triple-A level, which is one grade bel ...

in June. The Giants promoted Williamson to MLB on September 16, 2015. He made his MLB debut with the Giants on September 23. He made his first MLB start in right field on September 25, 2015, and got his first MLB hit off Sonny Gray of the

Oakland Athletics The Oakland Athletics (frequently referred to as the Oakland A's) were an American Major League Baseball (MLB) team based in Oakland, California from 1968 to 2024. The Athletics were a member club of the American League (AL) American League We ...

. In 2016, Williamson began the season with Sacramento, and received a promotion to the major leagues on April 15, but was sent back to the minors a week later. On June 2, Williamson was called up after Hunter Pence suffered an injury. On June 8, 2016, Williamson hit his first major league home run off David Price of the

, a tie-breaking shot in the bottom of the eighth inning. During 2017 spring training, Williamson was in competition for the left field job, competing against other outfielders. He suffered a minor injury towards the end of spring training, which would cause him to miss opening day. Williamson was ping-ponged back and forth between the MLB and triple-A throughout the 2017 season and began to make large contributions to the team near the season's end, including a 3 for 3 performance with a monstrous home run against Clayton Kershaw on September 24, 2017. On March 28, 2019, Williamson was

designated for assignment Designated for assignment (DFA) is a contractual term used in Major League Baseball (MLB). A player who is designated for assignment is immediately removed from the team's 40-man roster, after which the team must, within seven days, return the pla ...

, after failing to make the Opening Day roster. On April 4, 2019, Williamson cleared waivers and was outrighted to Triple-A. On June 1, 2019, Williamson elected to become a free agent after clearing waivers a second time in 2019.

Seattle Mariners

On June 5, 2019, Williamson signed a minor league contract with the

. The Mariners immediately selected his contract after the signing. In his first plate appearance with the Mariners, Williamson hit a 3-run home run. On July 16, he was designated for assignment and later outrighted to Triple-A. Williamson left the team on July 23, 2019, in order to pursue an opportunity in Korea.

Samsung Lions

On July 25, 2019, Williamson officially signed a $275,000 deal with the

of the

. He became a free agent following the season.

Washington Nationals

On January 15, 2020, Williamson signed a minor league deal with the

Washington Nationals The Washington Nationals are an American professional baseball team based in Washington, D.C. The Nationals compete in Major League Baseball (MLB) as a member club of the National League (NL) East Division. They play their home games at Na ...

. He was released on May 29, 2020.

Personal life

Williamson was born in Jacksonville, Florida, on July 15, 1990. He grew up in Wake Forest, North Carolina, with his three brothers, Renn, Cameron, and Christian. In November 2020, Williamson filed a personal injury lawsuit against China Basin Ballpark Company LLC, which owns and operates

Oracle Park Oracle Park is a ballpark in the South of Market, San Francisco, SoMa district of San Francisco, California. Since 2000, it has been the home of the San Francisco Giants of Major League Baseball (MLB). The stadium stands along San Francisco Bay ...

, after tripping on the ballpark's on-field warm-up mound, hitting his head against a wall and suffering a concussion while trying to catch a fly ball hit in April 2018, which was hit by Bryce Harper. Williamson claimed that he was still suffering from symptoms including nausea and dizziness which effectively ended his career. The on-field mounds were removed the following season.

References

External links

* * {{DEFAULTSORT:Williamson, Mac 1990 births Living people American expatriate baseball players in South Korea Arizona League Giants players Baseball players at the 2015 Pan American Games Baseball players from Wake County, North Carolina KBO League outfielders Major League Baseball outfielders People from Wake Forest, North Carolina Richmond Flying Squirrels players Sacramento River Cats players Salem-Keizer Volcanoes players Samsung Lions players San Francisco Giants players San Jose Giants players Seattle Mariners players Tacoma Rainiers players United States national baseball team players Wake Forest Demon Deacons baseball players Medalists at the 2015 Pan American Games Pan American Games silver medalists for the United States in baseball