Nombre: Dean O'Brien
País: JAR
Fecha de nacimiento: 15.05.90, 35 años
ATP ranking: 842
TOP posición de la clasificación: 507 (21.04.14, 68 puntos)
Puntos: 20
Dinero del premio: 63357 $
Partidos totales: 168
ganar: 77
%: 45.83 %
País: JAR
Fecha de nacimiento: 15.05.90, 35 años
ATP ranking: 842
TOP posición de la clasificación: 507 (21.04.14, 68 puntos)
Puntos: 20
Dinero del premio: 63357 $
Partidos totales: 168
ganar: 77
%: 45.83 %
| año | resumen | Difícil | Arcilla | I. difícil | Alfombra | Césped | Acrílico |
| 2016 | 2/9 | 1/4 | 1/2 | 0/3 | 0/0 | 0/0 | 0/0 |
| 2015 | 11/14 | 5/7 | 4/3 | 2/4 | 0/0 | 0/0 | 0/0 |
| 2014 | 19/25 | 13/12 | 5/8 | 1/5 | 0/0 | 0/0 | 0/0 |
| 2013 | 38/25 | 37/21 | 0/0 | 1/4 | 0/0 | 0/0 | 0/0 |
| 2012 | 5/13 | 3/11 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 |
| 2011 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2010 | 0/2 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2009 | 1/1 | 0/0 | 0/0 | 0/0 | 1/1 | 0/0 | 0/0 |
| 2008 | 0/1 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 |
| TOTAL | 77/91 | 60/58 | 11/14 | 5/18 | 1/1 | 0/0 | 0/0 |
| porc. % | 45.83 % | 50.85 % | 44 % | 21.74 % | 50 % | 0 % | 0 % |
Dean O'Brien / programado / pasado
| No se encontraron partidos |
Dean O'Brien form / superficie: Arcilla
Dean O'Brien / superficie: Arcilla
| 06.11.16 | c 2 | Marcelo Zormann | Dean O'Brien | 6-3, 7-5 |  | match details |  Bogota Challenger | Arcilla |
| 05.11.16 | c 1 | Dean O'Brien | Camilo Andres Erazo | 3-6, 6-2, 6-3 |  | match details | ||
| 07.05.16 | c 1 | Vitaly Kozyukov | Dean O'Brien | 6-4, 3-6, 6-3 | | match details |  Samarkand Challenger | Arcilla |
| 02.11.15 | 1er ronda | Alejandro Falla | Dean O'Brien | 6-3, 7-5 | | match details | Bogota Challenger | Arcilla |
| 01.11.15 | calif. | Dean O'Brien | Ruben Gonzales | 7-64, 6-4 | | match details | ||
| 31.10.15 | c 1 | Dean O'Brien | Shinnosuke Hiramatsu | 6-3, 6-2 | | match details | ||
| 06.09.15 | c 2 | Mauricio Echazu | Dean O'Brien | 6-2, 6-4 | | match details | Barranquilla Challenger | Arcilla |
| 06.09.15 | c 1 | Dean O'Brien | Jose Fernando Carvajal Torres | 6-2, 6-0 | | match details | ||
| 29.03.15 | c 2 | Giovanni Lapentti | Dean O'Brien | 6-2, 6-2 | | match details |  San Luis | Arcilla |
| 29.03.15 | c 1 | Dean O'Brien | Thiago Moura Monteiro | 6-2, 1-6, 7-64 | | match details | ||
| 17.11.14 | 1er ronda | Guillermo Rivera-Aranguiz | Dean O'Brien | 6-2, 6-3 | | match details |  Lima Challenger | Arcilla |
| 08.09.14 | 1er ronda | Dean O'Brien | Oscar Torres | 6-1, 6-2 | | match details | Colombia F5 | Arcilla |
| 08.09.14 | 2da ronda | Dean O'Brien | Pedro Bernardi | 7-62, 6-4 | | match details | ||
| 08.09.14 | 1/4 | Fabiano De Paula | Dean O'Brien | 6-4, 6-3 | | match details | ||
| 31.08.14 | c 1 | Facundo Mena | Dean O'Brien | 6-2, 7-5 | | match details | Medellin Challenger | Arcilla |
| 25.08.14 | 1er ronda | Fabiano De Paula | Dean O'Brien | 7-65, 6-3 | | match details | Colombia F4 | Arcilla |
| 18.08.14 | 2da ronda | Juan-Carlos Spir | Dean O'Brien | 6-3, 5-7, 6-4 | | match details | Colombia F3 | Arcilla |
| 18.08.14 | 1er ronda | Dean O'Brien | Tomas Roldan | 6-3, 6-2 | | match details | ||
| 16.06.14 | 1er ronda | Nils Langer | Dean O'Brien | 6-4, 6-2 | | match details |  France F11 | Arcilla |
| 15.04.14 | 1er ronda | Marcelo Arevalo | Dean O'Brien | 6-1, 7-64 | | match details | San Luis | Arcilla |
| 13.04.14 | calif. | Dean O'Brien | Pavel Krainik | 6-4, 6-4 | | match details | ||
| 12.04.14 | c 2 | Dean O'Brien | Jose Pablo Andres | 6-1, 6-1 | | match details | ||
| 27.01.14 | 1er ronda | Gregory Ouellette | Dean O'Brien | 6-4, 6-1 | | match details |  USA F4 | Arcilla |
| 03.09.12 | 2da ronda | Marton Fucsovics | Dean O'Brien | 7-5, 6-1 | | match details |  Canada F7 | Arcilla |
| 03.09.12 | 1er ronda | Dean O'Brien | Egor Koleganov | 6-4, 2-6, 7-65 | | match details |