|Country (sports)||United States|
|Residence||Hurst, Texas, USA|
July 19, 1949 |
Dallas, Texas, USA
|Height||5 ft 8 in (1.73 m)|
|Turned pro||1969 (amateur tour from 1966)|
|Highest ranking||No. 59 (August 23, 1973)|
|Grand Slam Singles results|
|Australian Open||3R (1982)|
|French Open||2R (1973, 1975)|
|US Open||2R (1975)|
|Career record||182–168 (Open era)|
|Career titles||7 (Open era)|
|Grand Slam Doubles results|
|Australian Open||QF (1980, 1982)|
During his career Estep won 2 singles titles and 7 doubles titles. He achieved a career-high singles ranking of World No. 59 in August 1973.
He was a board member of the Association of Tennis Professionals from 1982 to 1989, holding the position of chairman of the ATP Ranking Committee at the same time. He also worked with the U.S. Tennis Association, creating a method for ranking juniors in 1999 that is now used nationwide, and serving on the junior development council for Texas from 1993 to 1995.
Estep resided in Hurst, Texas.
Grand Prix and WCT finals (20)
|Outcome||No.||Date||Championship||Surface||Opponent in the final||Score in the final|
|Winner||1.||1973||Merion, U.S.||Grass||Gene Scott||7–5, 3–6, 7–6, 3–6, 7–5|
|Winner||2.||1976||Khartoum, Sudan||Hard||Thomaz Koch||6–4, 6–7, 6–4, 6–3|
|Runner-up||1.||1982||Tampa, U.S.||Hard||Brian Gottfried||7–6, 2–6, 4–6|
|Runner-up||2.||1982||Newport, U.S.||Grass||Hank Pfister||1–6, 5–7|