Sarah Thomas will write history as the first woman to officiate an NFL playoff competition

Violet Palmer, NBA

Violet Palmer referees a game between the Orlando Magic and the Denver Nuggets in January of this year

Violet Palmer referees a game between the Orlando Magic and the Denver Nuggets in January of this year

Violet Palmer is the tallest female referee in one of the four major divisions of American sport.

She was hired for the first time by the NBA in 1997 and is still engaged in holding men's basketball to this day.

Palmer later broke ground, becoming the first woman to refine a playoff game in 2006, between the Indiana Pacers and the New Jersey grids.

Beyond breaking ground for her sex, she also publicly announced that she was lesbian in 2014, shortly after Jason Collins was the first NBA player to come out as gay.

Dee Kantner, NBA

Dee Kanter, was adopted the same year as Violet Palmer as an NBA ref, but left after several seasons. Above is Kantner alongside coach Sylvia Hatchell of North Carolina Tar Heels in a 2013 NCAA game for women

Dee Kanter, was adopted the same year as Violet Palmer as an NBA ref, but left after several seasons. Above is Kantner alongside coach Sylvia Hatchell of North Carolina Tar Heels in a 2013 NCAA game for women

Dee Kanter, was adopted the same year as Violet Palmer as an NBA ref, but left after several seasons. Above is Kantner alongside coach Sylvia Hatchell of North Carolina Tar Heels in a 2013 NCAA game for women

Dee Kantner joined the NBA staff on duty the same year as Palmer, but was fired after the 2001-2002 season.

In a statement about her dismissal, the union said that she did not make enough progress in her own development & # 39;

Kantner said she is stunned & # 39; was to let her go and that she had received no warning about the decision.

She worked as a supervisor of officials in the WNBA before going to the men's league, a role she has since returned to.

The long time referee also consistently trained the school college basketball for ladies.

Lauren Holtkamp, ​​NBA

Female NBA winner Laura Holtkamp, ​​who will be completing her first season in the NBA this year, will be discussing a phone call in November with the player Ty Lawson of Denver Nuggets.

Female NBA winner Laura Holtkamp, ​​who will be completing her first season in the NBA this year, will be discussing a phone call in November with the player Ty Lawson of Denver Nuggets.

Female NBA winner Laura Holtkamp, ​​who will be completing her first season in the NBA this year, will be discussing a phone call in November with the player Ty Lawson of Denver Nuggets.

Laura Holtkamp, ​​34, became the third female referee of the NBA in 2014

She played basketball at Drury University in Missouri and had plans to obtain a master's degree in Divinity at Emory in Atlanta before being attracted by referees.

Soon she was engaged in women's games and WNBA and NBA D-League matches, according to Grantland.

Her first year in the competition was not without controversy.

Los Angeles Clippers point guard Chris Paul was criticized by many for alleged sexism when he said: "This may not be for her" after he got a technical poultry from Holtkamp.

Pamela Postema, MLB Spring Training

Female MLB umpire Pamela Postema mentions balls and strikes behind the plate during a Kansas City Royals competition in 1992

Female MLB umpire Pamela Postema mentions balls and strikes behind the plate during a Kansas City Royals competition in 1992

Female MLB umpire Pamela Postema mentions balls and strikes behind the plate during a Kansas City Royals competition in 1992

Pamela Postema was not the first woman to scold a professional baseball game, with her first innings coming Bernia five years after Bernice had called Major League Baseball to lead a minor league-game in 1972.

However, Postema became a fixture everywhere in the professional games, but the Show & # 39; in the eighties.

She spent seven years in Triple-A, the division directly under the majors, and even achieved spring training in 1988 and 1989.

However, she was dismissed controversially in 1989 after the death of MLB Commissioner A. Bartlett Giamatti, who had experienced her career as positive.

Postema filed a lawsuit for sex discrimination after the dismissal ended her well-earned career and fell outside the court.

Ria Cortesio, Minor League Baseball

Ria Cortesio, pictured in a Double-A match between the Jacksonville Suns and the Montgomery Biscuits in 2007, was fired in the same year

Ria Cortesio, pictured in a Double-A match between the Jacksonville Suns and the Montgomery Biscuits in 2007, was fired in the same year

Ria Cortesio, pictured in a Double-A match between the Jacksonville Suns and the Montgomery Biscuits in 2007, was fired in the same year

Ria Cortesio stood in the mid-2000s for many years the face of the female referee in baseball.

She spent nine years in the minor leagues, the highest being the Double-A Southern League, according to the Houston Chronicle.

Cortesio was also the first woman since Postema to move an exhibition game when she did a spring training match-up between the Chicago Cubs and Arizona Diamondbacks.

She also worked the Home Run Derby at the 2006 All-Star Game in Pittsburgh.

Her referee rating in Double-A slipped during the 2007 season and she was released in the fall of that year, according to ESPN.

Shannon Eastin

Shannon Eastin became the first woman to alternate an NFL match in 2012. She then follows the Jacksonville Jaguars and Indianapolis Colts during the same month

Shannon Eastin became the first woman to alternate an NFL match in 2012. She then follows the Jacksonville Jaguars and Indianapolis Colts during the same month

Shannon Eastin became the first woman to alternate an NFL match in 2012. She then follows the Jacksonville Jaguars and Indianapolis Colts during the same month

Shannon Eastin became the first woman to officiate a regular season NFL match in 2012 when she was used as a substitute referee in the September 2012 match between the St Louis Rams and the Detroit Lions.

Regular civil servants were excluded by owners during a dispute in 2012, a substitute refs were used until an agreement was reached at the end of September.

She had previously trained Mid-Eastern Athletic Conference college games and high school games before being adopted by the NFL.

The resident of Massachusetts, 42 at that time, has not returned to the NFL since the end of the referee elimination.

.