# Dean O'Brien (tennis)

Dean Kevin O'Brien (born 15 May 1990 in Sandton) is a South African tennis player. He played college tennis for the Georgia Tech Yellow Jackets.
O'Brien has a career high ATP singles ranking of 507 achieved on 21 April 2014. He also has a career high ATP doubles ranking of 115 achieved on 23 May 2016. He has won 6 ITF doubles titles.
O'Brien won his first ATP Challenger title at the 2015 Levene Gouldin & Thompson Tennis Challenger in the doubles event partnering Ruan Roelofse.
Overall, O'Brien has reached 26 career doubles finals with a record of 8 wins and 18 losses, among which includes a 1–6 record in ATP Challenger Tour finals.
Playing for the South Africa in Davis Cup, O'Brien has a W/L record of 1–2.

## ATP Challenger and ITF Futures finals
### Doubles: 26 (8–18)

* Legend
* ATP Challenger (1–6)
* ITF Futures (7–12)
* Finals by surface
* Hard (7–17)
* Clay (1–1)
* Grass (0–0)
* Carpet (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Jun 2009 | Spain F12, Melilla | Futures | Hard | Borja Zarco | Ignacio Coll Riudavets Andoni Vivanco-Guzmán | 5–7, 6–1, [3–10] |
| Loss | 0–2 | Mar 2013 | USA F6, Harlingen | Futures | Hard | Kevin King | Ruben Gonzales Chris Letcher | 2–6, 3–6 |
| Loss | 0–3 | Jun 2013 | Israel F10, Herzliya | Futures | Hard | Antoine Benneteau | Elie Rousset Albano Olivetti | 3–6, 6–7$^{(6–8)}$ |
| Win | 1–3 | Jun 2013 | Turkey F25, Istanbul | Futures | Hard | Ruan Roelofse | Baris Erguden Barkin Yalcinkale | 6–1, 4–6, [11–9] |
| Loss | 1–4 | Sep 2013 | France F16, Plaisir | Futures | Hard | Colin O'Brien | Julien Obry Rémi Boutillier | 6–3, 6–7$^{(4–7)}$, [14–16] |
| Loss | 1–5 | Oct 2013 | Mexico F13, Veracruz | Futures | Hard | Juan Carlos Spir | César Ramírez Alex Llompart | 4–6, 6–3, [5–10] |
| Loss | 1–6 | Oct 2013 | Mexico F14, Pachuca | Futures | Hard | Juan Carlos Spir | Christopher Diaz-Figueroa Darian King | 4–6, 6–2, [8–10] |
| Win | 2–6 | Nov 2013 | Colombia F6, Popayán | Futures | Hard | Juan Carlos Spir | Jonas Luetjen Steffen Zornosa | 6–4, 6–0 |
| Loss | 2–7 | Nov 2013 | Colombia F7, Bogotá | Futures | Hard | Juan Carlos Spir | Eduardo Struvay Felipe Mantilla | 6–7$^{(5–7)}$, 6–2, [7–10] |
| Loss | 2–8 | Apr 2014 | Mexico F1, Querétaro | Futures | Hard | Kevin King | César Ramírez Miguel Ángel Reyes-Varela | 3–6, 5–7 |
| Loss | 2–9 | May 2014 | Mexico F2, Córdoba | Futures | Hard | Kevin King | César Ramírez Miguel Ángel Reyes-Varela | 6–7$^{(1–7)}$, 1–6 |
| Win | 3–9 | May 2014 | Mexico F3, Mexico City | Futures | Hard | Kevin King | Mateo Nicolas Martinez Alex Llompart | 6–3, 6–4 |
| Win | 4–9 | Jun 2014 | South Africa F3, Sun City | Futures | Hard | Ruan Roelofse | Nicolaas Scholtz Tucker Vorster | 7–6$^{(8–6)}$, 6–4 |
| Loss | 4–10 | Aug 2014 | Colombia F4, Medellín | Futures | Clay | Juan Carlos Spir | Fabiano de Paula Nicolas Jarry | 6–2, 2–6, [9–11] |
| Win | 5–10 | Sep 2014 | Colombia F5, Ibagué | Futures | Clay | Nicolás Barrientos | Fabiano de Paula Marcelo Demoliner | 6–3, 5–7, [10–7] |
| Loss | 5–11 | Dec 2014 | Mexico F15, Mérida | Futures | Hard | Juan Carlos Spir | Eric Quigley Philip Bester | 6–4, 6–7$^{(5–7)}$, [10–12] |
| Loss | 5–12 | Mar 2015 | Canada F1, Gatineau | Futures | Hard | Kevin King | Germain Gigounon Daniel Smethurst | 4–6, 4–6 |
| Win | 6–12 | Mar 2015 | Canada F2, Sherbrooke | Futures | Hard | Kevin King | Edward Corrie Daniel Smethurst | 6–4, 2–6, [10–5] |
| Loss | 6–13 | Jun 2015 | Gimcheon, South Korea | Challenger | Hard | Ruan Roelofse | Zhe Li Jose Statham | 4–6, 2–6 |
| Win | 7–13 | Jun 2015 | Uzbekistan F4, Namangan | Futures | Hard | Ruan Roelofse | Jurabek Karimov Sanjar Fayziev | 7–5, 6–4 |
| Win | 8–13 | Jul 2015 | Binghamton, United States | Challenger | Hard | Ruan Roelofse | Dennis Novikov Daniel Nguyen | 6–1, 7–6$^{(7–0)}$ |
| Loss | 8–14 | Aug 2015 | Lexington, United States | Challenger | Hard | Ruan Roelofse | Carsten Ball Brydan Klein | 4–6, 6–7$^{(4–7)}$ |
| Loss | 8–15 | Oct 2015 | Las Vegas, United States | Challenger | Hard | Ruan Roelofse | Carsten Ball Dustin Brown | 6–3, 3–6, [6–10] |
| Loss | 8–16 | Feb 2016 | Dallas, United States | Challenger | Hard | Sekou Bangoura | Nicolas Meister Eric Quigley | 1–6, 1–6 |
| Loss | 8–17 | May 2016 | Bangkok, Thailand | Challenger | Hard | Ruan Roelofse | Jason Jung Chen Ti | 4–6, 6–3, [8–10] |
| Loss | 8–18 | Feb 2017 | Morelos, Mexico | Challenger | Hard | Kevin King | Jackson Withrow Austin Krajicek | 7–6$^{(7–4)}$, 6–7$^{(5–7)}$, [9–12] |