Isabella Fierro, 16, Mexico
-Born Dec. 26, 2000 in Merida, Mexico
-No. 84 in the Women’s World Amateur Golf Ranking
-Started playing golf at age 4
-Won the 2017 South American Women’s Amateur Championship by 10 strokes
-Finished T31 at the 2017 European Ladies Amateur Championship
-Played in the 2016 U.S. Women’s Amateur, where she made it to the Round of 64
-Represented Mexico in the 2016 Women’s World Amateur Team Championship
-Finished runner-up in the 2016 Mexican Women’s Amateur Championship and was third in 2015
-She won the 2015 Mexican Girls’ Junior Championship.
-Named Player of the Week by Golfweek on February 17, 2014
-Won the 2014 AJGA Junior All-Star, shooting 75-66 for a 3-under 141
-Enjoys playing soccer, basketball, volleyball, running and fishing
-Path to the quarterfinals:
-Stroke play: 74-74—149 (T46)
-Round of 64: defeated Alexa Pano, 4 and 3
-Round of 32: defeated Yuka Saso, 1 up
-Round of 16: defeated Haley Moore, 6 and 4Lucy Li, 14, Redwood Shores, Calif.
-Born Oct. 1, 2002 in Stanford, Calif.
-No. 386 in the Women’s World Amateur Golf Ranking
-Started playing golf at age 7
-Qualified for the 2014 U.S. Women’s Open, becoming the youngest qualifier in history at 11 years, 8 months and 19 days old
-Became the youngest competitor in U.S. Women’s Amateur history in 2013 at 10 years, 10 months, and 4 days old
-Playing in her third U.S. Women’s Amateur: 2013 (Missed cut) and 2016 (lost in Round of 32)
-A self-proclaimed fashionista who has made her own Halloween costumes since she was 7
-Garnered low-amateur honors in the 2017 ANA Inspiration
-Earned medalist honors in the 2017 U.S. Girls’ Junior before losing in the Round of 32
-Path to the quarterfinals:
-Stroke play: 71-78—149 (T46)
-Round of 64: defeated Mariel Galdiano, 4 and 3
-Round of 32: defeated Bethany Wu, 6 and 5
-Round of 16: defeated Shannon Aubert, 1 upRobynn Ree, 20, Redondo Beach, Calif.
-Born May 5, 1997 in Los Angeles, Calif.
-No. 33 in the Women’s World Amateur Golf Ranking
-A rising junior at University of Southern California, majoring in communications
-Runner-up with Hannah O’Sullivan in the inaugural 2015 U.S. Women’s Amateur Four-Ball
-Won the Nanea Pac-12 Preview, shooting 70-73-70—213
-Garnered WGCA All-America honorable-mention honors for the 2016-2017 season
-Led USC in her sophomore season with a 73 stroke average
-Named All-Pac-12 first team as a freshman and sophomore
-Earned WGCA All-American second team and All-Pac-12 first team honors as freshman
-Finished her freshman season with four top-10 finishes
-Won her first collegiate title with a 4-under 212 (70-71-71) at The Gold Rush in Seal Beach, Calif.
-Accepted a spot in the 2017 U.S. Women’s Amateur after being first alternate at sectional qualifying site in Los Angeles
-Path to the quarterfinals:
-Stroke play: 74-73—147 (T31)
-Round of 64: defeated Sabrina Iqbal, 5 and 4
-Round of 32: defeated Tze Han Lin, 9 and 8
-Round of 16: defeated Karen Miyamoto, 1 upSophia Schubert, 21, Oak Ridge, Tenn.
-Born Jan. 31, 1996 in Knoxville, Tenn.
-No. 66 in the Women’s World Amateur Golf Ranking
-Started playing golf at age 4
-Rising senior at the University of Texas and majoring in business
-Named WGCA All-America honorable mention for the 2016-2017 season
-Additionally, named All-Big 12 and Big 12 All-Tournament Team
-Won the 2017 Lady Buckeye, shooting 69-72-73—213
-Had seven top-five finishes her junior season, while carding 20 of her 39 rounds at or under par
-Playing in her first U.S. Women’s Amateur
-Spent her freshman year at Auburn, where she earned first collegiate victory at Alamo Invitational, posting rounds of 65-74-65=204 (-12) to win by one stroke
-Competed for the East Team in the 2014 Wyndham Cup
-Path to the quarterfinals:
-Stroke play: 74-74—148 (T38)
-Round of 64: defeated Naomi (Eun Young) Ko, 4 and 3
-Round of 32: defeated Krystal Quihuis, 3 and 2
-Round of 16: defeated Zoe Campos, 7 and 3Lauren Stephenson, 20, Lexington, S.C.
-Born Nov. 25, 1996 in Portland, Ore.
-No. 16 in the Women’s World Amateur Golf Ranking
-Started playing golf at age 8
-Rising junior at the University of Alabama (Played her freshman year at Clemson University)
-Majoring in communications
-Tied for 41st in 2017 U.S. Women’s Open; missed cut in 2016 U.S. Women’s Open
-Named 2017 first-team All-SEC (2017) and Second Team WGCA All-American (2016-17)
-Won the 2016 Eastern Women’s Amateur Championship
-Earned her first collegiate victory in the 2015 Yale Intercollegiate
-Made it to the Round of 32 in the 2014 U.S. Women’s Amateur
-Won the 2015 Dixie Women’s Amateur Championship
-Finished fifth in the Boys state 4A championship as a senior in high school with a 147
-Path to the quarterfinals:
-Stroke play: 74-68—141 (T-7)
-Round of 64: defeated Erin Fahey, 3 and 2
-Round of 32: defeated Jaravee Boonchant, 4 and 3
-Round of 16: defeated Gigi Stoll, 5 and 4Albane Valenzuela, 19, Switzerland
-Born Dec. 17, 1997 in New York City
-No. 3 in the Women’s World Amateur Golf Ranking
-Started playing golf at age 3
-Rising sophomore at Stanford University
-Played in the 2016 Olympic Games in Rio, where she finished T21
-Runner-up in the 2017 European Ladies Amateur Championship
-Three-time recipient of the Swiss Ladies and Junior Order of Merit
-A Junior Solheim Cup European team member in 2015
-Finished tied for low amateur in the 2016 LPGA ANA Inspiration
-Has lived in the United States, Mexico and Switzerland
-She is fluent in English, Spanish and French, and has a good working knowledge of German
-Garnered second-team WGCA All-America honors for the 2016-2017 season
-Path to the quarterfinals:
-Stroke play: 70-63—143 (T11)
-Round of 64: defeated Wad Phaewchimplee, 1 up
-Round of 32: defeated Cheyenne Knight, 1 up
-Round of 16: defeated Stephanie Lau, 4 and 3Lilia Kha-Tu Vu, 19, Fountain Valley, Calif.
-Born Oct. 14, 1997 in Fountain Valley, Calif.
-No. 5 in the Women’s World Amateur Golf Ranking
-Started playing golf at age 7
-A rising junior at UCLA majoring in political science
-Won the 2017 Pac-12 Championship
-Finished runner-up in the 2017 Canadian Women’s Amateur
-She also won the 2016 Southern California Golf Association Women’s Amateur
-Named first-team WGCA All-America
-Last played in the U.S. Women’s Amateur in 2010, when she missed the cut
-Played in five U.S. Girls’ Juniors (2011-15), with best finish the Round of 16 in 2013
-Path to the quarterfinals:
-Stroke play: 75-71—146 (T23)
-Round of 64: defeated Brenna Lervick, 4 and 3
-Round of 32: defeated Sarah Burnham, 1 up
-Round of 16: defeated Sarah Rhee, 6 and 5Chia Yen Wu, 13, Chinese Taipei
-Born March 25, 2004 in Hsin-Chu, Chinese Taipei
-No. 1408 in the Women’s World Amateur Golf Ranking
-Started playing golf at age 5
-Played in the 2017 U.S. Girls’ Junior, where she lost in the Round of 32
-Notched her lowest 18-hole score of 67 in Bernardo Heights, Calif., in July 2016
-Won the 2016 FCG International Junior Golf Championship by two strokes
-Finished second in the 2016 SA Junior Amateur Championship
-Enjoys playing basketball and swimming
-This is her first time playing golf on camera and it has made her a little nervous
-Competing in just her third match-play event
-Qualified for the 2016 U.S Women’s Amateur, but withdrew due to a knee injury
-Path to the quarterfinals:
-Stroke play: 73-77—150 (T57)
-Round of 64: defeated Julianne Alvarez, 5 and 4
-Round of 32: defeated Jiyoon Jang, 19 holes
-Round of 16: defeated Kristen Gillman, 3 and 1
Jessica Malknecht is the USGA's summer communications intern.