Name: Dean O'Brien
Country: JAR
Birthdate: 15.05.90, 35 years
ATP ranking: 842
TOP ranking's position: 507 (21.04.14, 68 points)
Points: 20
Prize money: 63357 $
Matches total: 168
Win: 77
%: 45.83 %
Country: JAR
Birthdate: 15.05.90, 35 years
ATP ranking: 842
TOP ranking's position: 507 (21.04.14, 68 points)
Points: 20
Prize money: 63357 $
Matches total: 168
Win: 77
%: 45.83 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 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 |
| perc. % | 45.83 % | 50.85 % | 44 % | 21.74 % | 50 % | 0 % | 0 % |
Dean O'Brien / scheduled / last
| no matches found |
Dean O'Brien form / year 2014
Dean O'Brien / year 2014
| 08.12.14 | 1st round | Christopher Diaz-Figueroa | Dean O'Brien | 1-6, 6-3, 6-4 |  | match details |  Mexico F15 | Hard |
| 01.12.14 | 1st round | Dennis Novikov | Dean O'Brien | 6-4, 6-2 | | match details | Mexico F14 | Hard |
| 17.11.14 | 1st round | Guillermo Rivera-Aranguiz | Dean O'Brien | 6-2, 6-3 | | match details |  Lima Challenger | Clay |
| 08.11.14 | q 1 | Sekou Bangoura | Dean O'Brien | 6-2, 6-2 | | match details |  Champaign Challenger | I. hard |
| 13.10.14 | 1st round | Adam El Mihdawy | Dean O'Brien | 6-3, 7-63 | | match details | USA F28 | Hard |
| 06.10.14 | 1st round | Lukas Finzelberg | Dean O'Brien | 3-6, 6-3, 6-4 | | match details | USA F27 | Hard |
| 08.09.14 | 1/4 | Fabiano De Paula | Dean O'Brien | 6-4, 6-3 | | match details |  Colombia F5 | Clay |
| 08.09.14 | 2nd round | Dean O'Brien | Pedro Bernardi | 7-62, 6-4 |  | match details | ||
| 08.09.14 | 1st round | Dean O'Brien | Oscar Torres | 6-1, 6-2 | | match details | ||
| 31.08.14 | q 1 | Facundo Mena | Dean O'Brien | 6-2, 7-5 | | match details | Medellin Challenger | Clay |
| 25.08.14 | 1st round | Fabiano De Paula | Dean O'Brien | 7-65, 6-3 | | match details | Colombia F4 | Clay |
| 18.08.14 | 2nd round | Juan-Carlos Spir | Dean O'Brien | 6-3, 5-7, 6-4 | | match details | Colombia F3 | Clay |
| 18.08.14 | 1st round | Dean O'Brien | Tomas Roldan | 6-3, 6-2 | | match details | ||
| 26.07.14 | q 1 | Mao-Xin Gong | Dean O'Brien | Dean O'Brien - walk over | | match details |  Segovia Challenger | Hard |
| 16.06.14 | 1st round | Nils Langer | Dean O'Brien | 6-4, 6-2 | | match details |  France F11 | Clay |
| 09.06.14 | 2nd round | Dean O'Brien | Kris Van Wyk | 6-4, 6-3 | | match details |  South Africa | Hard |
| 09.06.14 | 1/4 | Ruan Roelofse | Dean O'Brien | 6-4, 6-4 | | match details | ||
| 09.06.14 | 1st round | Dean O'Brien | Richard Ashforth | 6-1, 6-2 | | match details | ||
| 02.06.14 | 2nd round | Dean O'Brien | Brandon Laubser | 6-4, 5-7, 7-5 | | match details | South Africa | Hard |
| 02.06.14 | 1/4 | Dean O'Brien | Michael Grant | 4-6, 7-65, 6-4 | | match details | ||
| 02.06.14 | 1/2 | Nikala Scholtz | Dean O'Brien | 6-2, 6-4 | | match details | ||
| 02.06.14 | 1st round | Dean O'Brien | Stefan Merunka | 6-2, 6-1 | | match details | ||
| 05.05.14 | 2nd round | Dean O'Brien | Nicolas Meister | 6-4, Nicolas Meister - retired | | match details | Mexico F3 | Hard |
| 05.05.14 | 1/2 | Kevin King | Dean O'Brien | 6-3, 6-2 | | match details | ||
| 05.05.14 | 1/4 | Dean O'Brien | Maximiliano Estevez | 4-6, 6-0, 6-1 | | match details | ||
| 05.05.14 | 1st round | Dean O'Brien | Manuel Sanchez | 6-3, 7-5 | | match details | ||
| 28.04.14 | 1/4 | Jorge Brian Panta Herreros | Dean O'Brien | 6-2, 6-2 | | match details | Mexico F2 | Hard |
| 28.04.14 | 1st round | Dean O'Brien | Luis Diaz-Barriga | 7-62, 6-3 | | match details | ||
| 28.04.14 | 2nd round | Dean O'Brien | Miguel Gallardo-Valles | 1-6, 6-4, 7-63 | | match details | ||
| 21.04.14 | 1st round | Cesar Ramirez | Dean O'Brien | 6-2, 6-2 | | match details | Mexico F1 | Hard |
| 15.04.14 | 1st round | Marcelo Arevalo | Dean O'Brien | 6-1, 7-64 | | match details | San Luis | Clay |
| 13.04.14 | qual. | Dean O'Brien | Pavel Krainik | 6-4, 6-4 | | match details | ||
| 12.04.14 | q 2 | Dean O'Brien | Jose Pablo Andres | 6-1, 6-1 | | match details | ||
| 15.03.14 | q 1 | Nikita Kryvonos | Dean O'Brien | 7-65, 6-4 | | match details |  Rimouski Challenger | I. hard |
| 10.03.14 | 1st round | Edward Corrie | Dean O'Brien | 5-7, 6-4, 6-3 | | match details | Canada F2 | I. hard |
| 03.03.14 | 1st round | Dean O'Brien | Adam El Mihdawy | 6-4, 6-4 | | match details | Canada F1 | I. hard |
| 03.03.14 | 2nd round | Richard Gabb | Dean O'Brien | 5-7, 6-4, 6-3 | | match details | ||
| 18.02.14 | 1st round | Henrique Cunha | Dean O'Brien | 6-3, 6-2 | | match details | Morelos Challenger | Hard |
| 17.02.14 | qual. | Dean O'Brien | Dennis Novikov | 7-5, 4-6, 6-1 | | match details | ||
| 16.02.14 | q 2 | Dean O'Brien | Alexios Halebian | 1-6, 6-4, 1-0, Alexios Halebian - retired | | match details | ||
| 15.02.14 | q 1 | Dean O'Brien | Alfredo Moreno | 3-6, 7-68, 6-4 | | match details | ||
| 08.02.14 | q 1 | Victor Estrella | Dean O'Brien | 7-62, 6-4 | | match details | Memphis | I. hard |
| 27.01.14 | 1st round | Gregory Ouellette | Dean O'Brien | 6-4, 6-1 | | match details | USA F4 | Clay |
| 20.01.14 | q 2 | Chieh-Fu Wang | Dean O'Brien | 4-6, 7-64, 6-4 | | match details | Maui Challenger | Hard |