-2018 Southern California Golf Association Senior Player of the Year

-Won the 2017 and 2018 Southern California Golf Association Senior Amateur Championship

-Won the 2017 SCGA Senior Match Play Championship

-Playing in his fifth USGA championship, with the first being the 1978 U.S. Junior Amateur, in which he advanced to the Round of 64

-Played college golf for the University of Arizona, graduating in 1983

-Works as a software engineer for United Technologies

Path to the quarterfinals:

-Defeated John Turk, of Las Vegas, Nev., 3 and 1

-Defeated Joe Palmer, of West Des Moines, Iowa, 2 and 1

-Defeated Tim Jackson, of Memphis, Tenn., 2 and 1

-Competing in his 36th USGA championship

-2013 U.S. Senior Amateur champion

·-Retired pulmonologist

-Graduate of Kent State University, where he played on the golf team and now has a scholarship in his name

-Was the low amateur in the U.S. Senior Open in 2012 and 2013

-In 2012, became the first player in USGA history to make match play in the U.S. Amateur, U.S. Mid-Amateur and U.S. Senior Amateur. He advanced to the Round of 32 in the U.S. Amateur.

-Is a Type 1 diabetic and plays golf with an insulin pump

-Recently announced in the newest class of the Georgia Golf Hall of Fame

Path to the quarterfinals:

-Defeated Jim McNelis, of Gig Harbor, Wash., 4 and 3

-Defeated Stewart “Buddy” Alexander, of Auburn, Ala., 7 and 6

-Defeated Fred Vana Jr., of Boxford, Mass., 4 and 3

-Won 2017 U.S. Senior Amateur, defeating two-time champion Paul Simson in the championship match at The Minikahda Club in Minneapolis, Minn.

-Member of the victorious Pennsylvania team in the 2009 USGA Men’s State Team Championship

-Playing in his 46th USGA championship

-Reached the Round of 16 in the 1995 U.S. Amateur, losing, 2 and 1, to eventual champion Tiger Woods

-Won the 1997 Pennsylvania State Amateur

-14-time Western Pennsylvania Golf Association Player of the Year

-Played college basketball at Indiana University of Pennsylvania

Path to the quarterfinals:

-Defeated Tom Brandes, of Bellevue, Wash., 2 and 1

-Defeated Jeff Burda, of Modesto, Calif., 19 holes

-Defeated Jack Larkin, of Atlanta, Ga., 19 holes

-Won the 2015 U.S. Senior Amateur Championship

-Three-time winner of the Seniors Amateur Championship, conducted by The R&A

-Two-time winner of the Canadian Senior Amateur

-Seven-time Golf Association of Philadelphia Senior Player of the Year

-Low amateur in the 2016 U.S. Senior Open

-Played college golf at the University of Florida

-Works as an insurance attorney

Path to the quarterfinals:

-Defeated Thomas Immenschuh, of San Antonio, Texas, 4 and 2

-Defeated Dirk Maust, of Phoenix, Ariz., 2 and 1

-Defeated Dave Ryan, of Taylorville, Ill., 4 and 2

-2013 U.S. Mid-Amateur champion (second-oldest winner)

-2015 USA Walker Cup Team competitor

-Competing in his 54th USGA championship

-Was low amateur in the U.S. Senior Open in 2014 and 2015

-Member of the Iowa Golf Hall of Fame

-Works in the insurance industry

-Graduate of Wichita State University

-Collects golf books

Path to the quarterfinals:

-Defeated Hunter Nelson, of Houston, Texas, 5 and 3

-Defeated Robert Funk, of Canyon Lake, Calif., 2 and 1

-Defeated Buzz Fly, of Memphis, Tenn., 5 and 4

-Playing in his fourth USGA championship, and first since 1976

-Reigning Minnesota Golf Association Senior Men’s Player of the Year

-1980 Utah State Amateur runner-up

-1984 Idaho State Amateur runner-up

-2014 and 2016 Florida Senior Amateur runner-up

-Graduated from Brigham Young University in 1980

-Has 10 grandchildren

·       Enjoys fishing

Path to the quarterfinals:

-Defeated James Camaione, of Upland, Calif., 5 and 3

-Defeated John Grace, of Fort Worth, Texas, 5 and 3

-Defeated Paul Simson, of Raleigh, N.C., 20 holes

-Has earned medalist honors in six USGA championship, including co-medalist in this year’s U.S. Senior Amateur

-Only player in history to earn medalist honors in the U.S. Amateur, the U.S. Mid-Amateur and the U.S. Seninor Amateur

-Was low amateur in 2010 U.S. Amateur at the age of 47

-Low amateur in the 2018 U.S. Senior Open

-Has competed in four U.S. Opens, and earned low-amateur honors in 2000

Joined two-time USGA championn Marvin "Vinny" Giles as the only golfers in USGA history to be low amateur in the U.S. Open and U.S. Senior Open

-Semifinalist in 2001 and 2002 U.S. Mid-Amateur

-Three-time winner of the Southern California Golf Association Mid-Amateur Championship, most recently in 2018

-Runner-up in 2018 Northern California Golf Association Mid-Amateur

-Runner-up in the 2009 California Amateur

-Works as a Toyota dealer at Toyota Vallejo in Northern California

Path to the quarterfinals:

-Defeated Richard Jeffers, of Mobile, Ala., 3 and 2

-Defeated Buddy Patch, of Fairfax Station, Va., 5 and 4

-Defeated Scott Sullivan, of Grand Junction, Colo., 2 and 1

-Qualified for the 2018 U.S. Senior Open (missed cut)

-Playing in his fifth USGA championship, and second U.S. Senior Amateur.

-Advanced to the Round of 16 in 2014 U.S. Mid-Amateur at Saucon Valley

-Reached Round of 32 in 2017 U.S. Senior Amateur

-Played college golf at Iowa State University

-Plays the jazz piano and enjoys DJing

-Works as a portfolio manager for KLS Diversified

Path to the quarterfinals:

-Defeated John Lombardozzi, of Herndon, Va., 20 holes

-Defeated George “Buddy” Marucci, of Villanova, Pa., 19 holes

-Defeated Gene Elliott, of West Des Moines, Iowa, 1 up