John Walker began playing competitive tennis at age 8 in Oklahoma City. From an early age he demonstrated command of the game, ranking No. 3 in the state by the Oklahoma District Tennis Association in Boys’ 10-and-under singles. At the age of 12, Walker moved to Garland and didn’t miss a beat while competing in Texas Junior Tournaments, qualifying for the National Clay Court Championships, the National Indoor Championships, and the Boys Junior National Championships. Advancing through the age classifications, Walker was also recognized by the Texas Tennis Association with a No. 1 ranking in boys doubles and a No. 7 ranking in boys singles.
Walker starred at South Garland High School from 1994-98. He claimed the 10-5A title in boys singles his freshman, junior and senior years. As a senior, he was a finalist in the Region II Tournament and advanced to the UIL State Tournament. There, he earned a third-place finish. Walker also earned District MVP honors each year he was at South Garland.
After graduation, Walker began his collegiate career at the University of Oklahoma where he posted an 8-4 singles record and 1-0 doubles record. In the Spring of 2001, he transferred to Texas Tech, earning a varsity spot as a sophomore. His junior season, Walker posted a 6-0 singles mark and 2-2 in doubles. He erupted his senior season, claiming a 14-5 record—most on the Red Raider squad. Walker was also named to the Academic All-Big 12 first team and earned the Big 12 Conference Post Graduate Scholarship.
Walker also competed in the Men’s Open competition for almost 15 years, winning six sanctioned singles championships from 1995-2008 and was a finalist in the prestigious Cotton Bowl Classic in 2005.
In 2011, Walker received his masters in healthcare administration from Trinity University in San Antonio. He is currently on the adminstrative staff at Medical Center of McKinney and resides in Plano with his wife, Kendall.